Answer:
Buoyant force B = V * ρ volume * density
Since the buoyant force is the same in both cases (salt & fresh)
a smaller volume is required when the density of the displaced water is greater
(A) is correct
The electric potential along the x-axis is V=100e−2xV, where x is in meters.
A) What IS E(x) at x=1.0 m?
B) What is E(x) at x=1.6m?
Express your answer to two significant figures and include the appropriate units.
A. The electric field E(x) at x = 1.0 m is 27.07 V/m
B. The electric field E(x) at x = 1.6 m is 8.15 V/m
What is electric potential?Electric potential is work done in moving a unit charge from one point to the other.
What is electric field?Electric field is the ofrce per unit charge acting at a point in an electric field.
A) What Is E(x) at x = 1.0 m?Given that the electric potential V = 100e⁻²ˣ V, the electric field is given by
E = -dV/dx = -d100e⁻²ˣ/dx
= -100de⁻²ˣ/dx
= -100 × -2 × e⁻²ˣ
= 200e⁻²ˣ
Since we require the electric field at x = 1.0nm, substituting the value of x = 1.0 into the equation, we have
E(x) = 200e⁻²ˣ
E(1.0) = 200e⁻²⁽¹⁾
E(1.0) = 200e⁻²
E(1.0) = 200/e²
E(1.0) = 200/7.3891
E(1.0) = 27.07 V/m
So, E(1.0) = 27.07 V/m
B) What Is E(x) at x = 1.6 m?Given that V = 100e⁻²ˣ V, the electric field is given by
E = -dV/dx = -d100e⁻²ˣ/dx
= -100de⁻²ˣ/dx
= -100 × -2 × e⁻²ˣ
= 200e⁻²ˣ
Since we require the electric field at x = 1.6 m, substituting the value of x = 1.6 into the equation, we have
E(x) = 200e⁻²ˣ
E(1.6) = 200e⁻²⁽¹°⁶⁾
E(1.6) = 200e⁻³°²
E(1.6) = 200/e³°²
E(1.6) = 200/24.533
E(1.6) = 8.15 V/m
So, E(1.6) = 8.15 V/m
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Air loss in a single vehicle (not comb. vehicle) should not be more than _________with engine off and 'brakes on'.
a) 3 psi in one minute
b) 2 psi in 45 seconds
c) I psi in one minute
d) I psi in 30 seconds
There has been a lot of attention given to Jupiter’s moon Europa as a possible site where life might be found. What do you think that life (if there indeed is any) might be like (be sure to consider the conditions we believe exist in the ocean under Europa’s ice crust)? What ideas might you have for how scientists could explore Europa’s ocean?
Scientists could explore Europa’s oceans by using potent technologically advanced telescopes capable of deciphering the content beneath the ice crust.
What are potent technologically advanced telescopes?The latest technologically advanced telescopes are potent optical devices that allow us to discover the presence of certain compounds not only in the atmosphere of other planets in the solar system but also the content on the surface (e.g, the water content).
These telescopes contain curved mirrors that gather and focus different spectra of light from the sky such as the Webb telescope which was launched by NASA in the final of 2021.
Therefore, with this data, we can see that technologically advanced telescopes are potent optical instruments that can be used to observe the presence of different compounds including water on the surface of a planet or its satellites such as in the case of Europe which is a satellite of Jupiter.
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A ball rolls horizontally off of a 120 m cliff with a velocity of 6 m/s. How far from the base of the cliff will it land?
The distance from the base of the cliff 120 m high the ball will land is 29.7 m.
What is distance?Distance is the length between two points.
To calculate the distance from the base the ball will land, we use the formula below.
Formula:
R = u√(2h/g)........... Equation 1Where:
R = Distance from the base of the cliff, where the ball landsh = Height of the cliffg = Acceleration due to gravityu = Intial velocityFrom the question,
Given:
u = 6 m/sh = 120 mg = 9.8 m/s²Substitute these values into equation 1
R = 6√(2×120/9.8)R = 6√24.49R = 6×4.95R = 29.7 mHence, the distance from the base of the cliff the ball will land is 29.7 m.
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TRUE/FALSE. before turning into a white dwarf, a star like the sun will spend most of its life as a main sequence star.
Before turning into a white dwarf, a star like the sun will spend most of its life as a main sequence star is a true statement.
Most of the time, the stars' positions in relation to one another remain constant. Convergence between Orion and Taurus is ongoing. Ursa Minor is never far from Draco. The stars appear to us as an endless backdrop painting in the sky that hardly moves in relation to one another.
As we revolve around the sun throughout the year, there are a few tiny movements. Stars farther away move more to the left and right than stars closer to us. Even if it only has a small effect, it makes sense. You'll notice that objects farther away from you move less in relation to you than ones that are closer to you if you keep your eyes fixed out into the distance as you stroll down the street.
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suppose that requiring motorcycle riders to wear helmets reduces the probability of a motorcycle fatality from 0.3 percent to 0.2 percent over the lifetime of a motorcycle rider and that the cost of a lifetime supply of helmets is $500. it is efficient for the government to require riders to wear helmets if human life is valued at
The human life valuation based on the information is E. $500000 or more.
What is the human life valuation?It was illustrated that the motorcycle riders to wear helmets reduces the probability of a motorcycle fatality from 0.3 percent to 0.2 percent over the lifetime of a motorcycle rider.
Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true.
Since the cost of a lifetime supply of helmets is $500, the lifetime human life = = 500 / (0.3 - 0.2) × 100
= 500 / 0.1 × 100
= 5000 × 100
= 500000
The correct option is E.
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Complete question
Suppose that requiring motorcycle riders to wear helmets reduces the probability of a motorcycle fatality from 0.3 percent to 0.2 percent over the lifetime of a motorcycle rider and that the cost of a lifetime supply of helmets is $500. it is efficient for the government to require riders to wear helmets if human life is valued at:
A. $100 or more.
B. $150 or more
C. $500 or more.
D. $50000 or more.
E. $500000 or more.
A long, horizontal wire Ab rests on the surface of a table and carries a current I. A horizontal wire CD is vertically above wire AB , and is free to slide up and down on the two vertical metal guides C and D ( as shown in Fig) .Wire CD is connected through the sliding contacts to another wire that also carries a current I , opposite in direction to the current in wire AB . The mass per unit length of the wire CD is λ. To what equilibrium height h will the wire CD rise. assuming that magnetic force on it is wholly due to current in wire AB ?
The equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg
What is magnetic field ?A region in which the force of magnetism acts is known as the magnetic field, and it surrounds magnetic materials or a moving electric charge. Moving magnetic dipoles and electric charges produce a magnetic field, which acts as a force field on other nearby magnetic dipoles and moving charges.
Magnetic field at a distance h produced by a current carrying wire
B = μ₀I/ 2πh
Magnetic force due to the present current carrying wire can be calculated by the formula
F = B I L
And we also know that F = mg
On equating these mg = B I L
( μ₀I/ 2πh ) I = ( m/ I ) g = λg
thus we get the value of h as
h = μ₀I² / 2π λg
Thus, the equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg .
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a stone is thrown horizontally from the top of a cliff 30m high with an itinal sped of 20, find the vertical speed of the stone as it hits the groudn
The molar mass of sulfur hexafluoride is 146 g/mol.
13. g of sulfur hexafluoride = 13 g / 146g/mol = 0.089 mol
The pressure of sulfur hexafluoride
P = nRT / V
P = 0.089 mol x 0.08206 Latm/mol/k x (10.0 + 273.15)K / 5.0 L
P = 0.41 atm.
The rate of change in position of an object in any course. Speed is measured because the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has handiest route and no significance.
Velocity can be notion of as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.
The primary unit or the S.I. unit of velocity is m/s or ms¹.
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brightness is to light as ________ is to sound.
Brightness is to light as loudness is to sound.
What is Brightness?Brightness is the visual attribute by which a light source appears to emit or reflect light. In other words, brightness is the perception caused by the brightness of a visual object. Not necessarily proportional to luminance.
What is loudness?Loudness is often confused with volume. However, the two terms are completely different concepts. Loudness is a scientific measure of the amount or strength of sound. Loudness, on the other hand, is much more difficult to quantify as it is entirely subjective and based solely on your personal perception of sound. The frequency content, duration, and loudness of a sound are factors in how loudness is perceived.
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Label the spinal cord meninges and spaces. 02:00:12 Skipped Reset Zoom Subarachnoid Arachnoid mater Dura mater Subdural Pia mater space space 7
The label from superficial to deep, of meninges and their related spaces in the correct order are:
1. Dura mater
2. Subdural space
3. Arachnoid mater
4. Subarachnoid space
5. Pia mater
What is the proper sequence of the meninges, from the superficial to the deep?The brain and spinal cord are shielded by three layers of membranes called meninges. Pia mater is the thin inner layer. The arachnoid, a structure resembling a web and filled with fluid, is the middle layer and protects the brain. The durable outer layer is known as the dura mater.
The subdural space is the area that could be found between the arachnoid mater and the meningeal layer of the dura. The subdural space typically only exists in pathological conditions, similar to the epidural space.
Therefore, Between the dura mater of your spinal cord, the bones of your vertebral column, and the dura mater of your skull is a space called the epidural space.
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for a 3-sided joint, it is a good practice to place a nonadhering plastic bond breaker strip to the concealed side (inner side) before applying joint sealant.
For a 3-sided joint, it is a good practice to place a nonadhering plastic bond breaker strip to the concealed side (inner side) before applying joint sealant is a true statement.
What is the sealant about?The level of attention taken before applying the sealant will determine how effectively it adheres to the surface. The first step in joint preparation is a site inspection by the sealant contractor to ensure that all joint dimensions are in accordance with the requirements.
All parties shall be informed if the width or depth of joints deviates from those stated owing to component location, incorrect component size, workmanship defects, weathering, or other joint modifying factors.
Note that Sealant Joints in the Exterior Wall seams that are closed with rubberlike compounds.
Therefore, If a non-adhering plastic bond breaker strip is not inserted into the opening before the sealant, the sealant in three-sided junctions is prone to tear.
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for a 3-sided joint, it is a good practice to place a nonadhering plastic bond breaker strip to the concealed side (inner side) before applying joint sealant. true or false.
In a certain experiment, a radio transmitter emits sinusoidal electromagnetic waves of frequency 125.0 in opposite directions inside a narrow cavity with reflectors at both ends, causing a standing wave pattern to occur.partA:How far apart are the nodal planes of the magnetic field?Express your answer using four significant figures.partB:If the standing wave pattern is determined to be in its eighth harmonic, how long is the cavity?Express your answer using four significant figures
Distance between the nodal planes is 2.4m and If the standing wave pattern is in its eighth harmonic, cavity is 9.6m long.
What is electromagnetic waves?Electromagnetic waves are waves that are created as a result of vibrations between electric and a magnetic field.
We know that ;
f= c/λ
f is frequency
c= Speed of light and V is wavelength
the wavelength is equal to,
λ= 2L/n
L is Length and n is Number of antinodes/nodes
A) Given, frequency= 125MHz, therefore
λ = c/f
λ =3 * 10⁸/125 *10⁶
=2.4 m
Distance between the nodal planes is 2.4m.
B) 8th harmonic given, so n= 8
L= ( λ * n)/2
= 2.4 * 8/2
L = 9.6 m
If the standing wave pattern is in its eighth harmonic, cavity is 9.6m long.
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consider the fairness properties of aimd. now, consider a scenario where two flows are competing at a bottleneck with capacity r, where each of them has the same rtt. using standard aimd, both flows will converge to a regime where each gets r/2. discuss how by changing their aimd formulas you can make them converge to 3r/4 and r/4.
By changing their AIMD formulas in this way, we can make both flows converge to 3r/4 and r/4 respectively.
What is AIMD?
The AIMD (Additive Increase, Multiplicative Decrease) congestion control algorithm is a type of feedback control in which the sender increases the window size by a certain amount (additively) after each round trip time (RTT) and then reduces the window size (multiplicatively) when it detects packet loss. This algorithm is used to ensure fair sharing of the network resources.
In the given scenario, if we want to make both flows converge to 3r/4 and r/4, we can modify their AIMD formulas. We can do this by changing the rate at which the window sizes increase (i.e. the additive increase) and decrease (i.e. the multiplicative decrease).
For the flow that should end up with 3r/4, we can reduce the rate of additive increase and increase the rate of multiplicative decrease. This will make the flow increase its window size more slowly and decrease its window size more quickly, resulting in it converging to a smaller window size of 3r/4.
For the flow that should end up with r/4, we can do the opposite, i.e. increase the rate of additive increase and reduce the rate of multiplicative decrease. This will make the flow increase its window size more quickly and decrease its window size more slowly, resulting in it converging to a smaller window size of r/4.
By changing their AIMD formulas in this way, we can make both flows converge to 3r/4 and r/4 respectively.
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Which process is required to allow a gravitationally-collapsing gas cloud to continue to collapse?.
Most of the cloud's thermal energy must be radiated away.
The cloud must constantly produce new dust particles. A collision with another cloud is required. Most of the cloud's thermal energy must be trapped there. Star formation depends significantly on angular momentum.
Low, dense clouds mainly serve to deflect solar energy and chill the Earth's surface. High, thin clouds mostly reflect incoming solar radiation; but, they also trap part of the infrared radiation that the Earth emits and reflect it back down, warming the Earth's surface.
The amount of emission from a cloud changes directly with its temperature in addition to being influenced by a number of other elements, including the thickness of the cloud and the composition of the cloud.
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What is the magnitude b of the magnetic field at the location of the charge due to the current-carrying wire?.
Using the right hand rule, it is possible to calculate the magnetic field direction at the site of the charge caused by the current-carrying wire.
In the simplest terms possible, what is a magnetic field?The region surrounding a magnet where the effects of magnetism are perceived is known as the magnetic field. To explain how the magnetic force is dispersed in the area surrounding and inside something magnetic in nature, we utilize the magnetic field as a tool.
How does the magnetic field function?The same poles resist one another whereas opposite poles are attracted to one another. The north-seeking poles of the iron's atoms line up in the same way when you rub it against a magnet.
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Students are investigating charge separation in conductors. They have two initially neutral conducting spheres and two different kinds of cloths. The students want to determine if the cloths add the same kind of charge or opposite kinds of charge when rubbed on the spheres. Which of the following procedures will provide enough information to determine whether the cloths add the same or opposite charges?a. Rub one sphere with one cloth and the other sphere with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.b. Rub one sphere with one cloth and the other sphere with the other cloth, and bring them close together without touching. See if they attract or repel.c. Rub each sphere once with one cloth then once with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.d. Rub each sphere once with one cloth then once with the other cloth, and bring them close together without touching. See if they attract or repel.
Answer:
rgvy
Explanation:
urfgbv
Crane with 5 kW motor lifts the load evenly at a speed of 0.1 m/s. What is the weight of the cargo?
Answer: 0.5
Explanation:
the wall separating henri from his manager made it hard to hear what his manager was saying. the wall is an example of a(n) barrier.
The wall separating Henri from his manager made it hard to hear what his manager was saying, the wall is an example of a physical barrier.
Physical barrier is the environmental and natural condition that act as a barrier in communication in sending message from sender to receiver.
Organizational environment or interior workspace design problems, technological problems and noise are the parts of physical barriers.Surroundings, distance between people, time differences and faulty communication methods are factors that can create a physical barrier. Managers must quickly identify these factors to address their negative effects on productivity.Therefore the wall between Henri and his manager acts as a physics barrier which made it hard to hear what his manager is saying.
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the modified mercalli intensity scale is used to measure _______.
Answer: Intensity of earthquakes
Explanation:
The Mercalli intensity scale is a scale to measure the intensity of earthquakes. Unlike the Richter scale, the Mercalli scale does not take into account the energy of an earthquake directly. Rather, they classify earthquakes by the effects they have.
Thermodynamics 2 QUESTION 3 A stationary gas-turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to air at a rate of 35,000 kJ/s. Compare the power delivered by for the following assumptions: a. assuming constant specific heats at room temperature b. accounting for the variation of specific heats with temperature.
Assuming constant specific heats at room temperature, the power delivered by gas-turbine power plant that operates on a simple ideal Brayton cycle with air as the working fluid is 15678.25 KW
P1 = 95 KPa
T1 = 290 K
T3 = 1100 K
P2 = P3 = 760 KPa
Qin = 35000 KJ / s
At constant specific heats at room temperature,
R = 0.287 KJ / Kg K
cp = 1.005 KJ / Kg K
cv = 0.718 KJ / Kg K
K = 1.4
Pressure ratio, rp = P2 / P1
rp = 760 / 95
rp = 8
Efficiency, η = Wnet / Qin
1 - 1 / [ ( rp )^( ( k - 1 ) / k ) ] = Wnet / Qin
Wnet = 35000 * 1 - 1 / [ ( rp )^( ( 1.4 - 1 ) / 1.4 ) ]
Wnet = 35000 * 0.44795
Wnet = 15678.25 KW
Therefore, the power delivered is 15678.25 KW
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what is the maximum mass of block a for which the system remains in static equilibrium? express your answer with the appropriate units.
Mass is one of the fundamental properties of an object in Physics, and is a measurement of how much matter there is in something.
How to finding Mass from Density and Volume?Look up the object's density. Density measures how tightly the matter in an object is packed together. Each material has its own density, which you can look up online or in a textbook. The scientific unit of density is kilograms per cubic meter (kg/m3), but you can use grams per cubic centimeter (g/cm3) for smaller objects.Matter is any substance that you can touch — anything that takes up physical space and has volume. Use this formula to convert between these units: 1,000 kg/m3 = 1 g/cm3The density of liquids is often measured in kilograms per liter (kg/L) or grams per milliliter (g/mL) instead. These units are equivalent: 1 kg/L = 1 g/mL.Example: Diamond has a density of 3.52 g/cm3. 2. Measure the object's volume. The volume is the amount of space the object occupies. Measure the volume of solids in cubic meters (m3) or cubic centimeters (cm3), and the volume of liquids in liters (L) or milliliters (mL). The formula for volume depends on the shape of the object. Refer to this article for common shapes.Use the same unit that appears as part of your density measurement.Example: Since we measured the density of diamond in g/cm3, we should measure our diamond's volume in cm3. Let's say our diamond's volume is 5,000 cm3. 3. Multiply the volume and density together. Multiply your two numbers together, and you'll know the mass of your object.[1] Keep track of the units as you do this, and you'll see that you end up with units of mass (kilograms or grams).Example: We have a diamond with volume 5,000 cm3 and density 3.52 g/cm3. To find the diamond's mass, multiply 5,000 cm3 x 3.52 g/cm3 = 17,600 grams.To learn more about Equilibrium refer to:
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A truck loaded with sand is moving down the highway in a straight path.
a. What happens to the momentum of the truck if the truck’s velocity is increasing?
b. What happens to the momentum of the truck if sand leaks at a constant rate through a hole in the truck bed while the truck maintains a constant velocity?
Momentum, the product of a particle's mass and its velocity. Momentum is a vector quantity. It has both magnitude and direction. Isaac Newton's second law of motion states that the rate of change of momentum over time is equal to the force acting on a particle.
From Newton's second law, if a particle is subject to a constant force over a period of time, the product of that force and the time interval (momentum) equals the change in momentum. Conversely, the momentum of a particle is a measure of the time it takes for a constant force to come to rest.
We know, p = mv
Where, p = momentum
m = mass of object
v = velocity of the object
Since, momentum is directly proportional to the velocity of object:
p ∝ v
This means, that momentum increases with an increase in velocity.
If the velocity is constant, then:
p ∝ m
As the truck is losing some mass due the leakage of sand at a constant rate.
So, this decrease in mass leads in a decrease of momentum.
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Correctly label the following anatomical parts of a kidney. The designations of "cortex" and "medulla' are misleading, perhaps because of differences in mammalian kidney structure among different species. Cortex refers to the outer perimeter and medulla comprises the pyramids and columns However, there is no fundamental difference between the composition of the cortex and that of the columns, both contain corpuscles that project tubules into the pyramidal regions. Renal medulla Renal cortex Major calyx Minor calyx Fibrous capsule Renal pyramid Renal column Correctly label the following anatomical parts of a kidney. The designations of "cortex" and "medulla" are misleading, perhaps because of differences in mammalian kidney structure among different species. Cortex refers to the outer perimeter , and medulla comprises the pyramids and columns However, there is no fundamental difference between the composition of the cortex and that of the columns, both contain corpuscles that project tubules into the pyramidal regions. Renal medulla Renal cortex Major calyx Minor calyx Fibrous capsule Renal pyramid Renal column
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Correct label the following anatomical parts of a kidney are
Left Top to bottom:
- Fibrous capsule
- Renal pyramid
- Renal column
- Minor calyx
- Major calyx
- Renal Cortex
- Renal Medulla
What is kidney?One of two organs in the abdomen. Kidneys remove waste and excess water (such as urine) from the blood and balance chemicals (such as sodium, potassium, and calcium) in the body. Kidneys also produce hormones that help control blood pressure and stimulate the bone marrow to make red blood cells.
Kidney function:
Remove waste and excess liquid.Control blood pressure. make red blood cells.Keep your bones healthy.Check pH.To know more about kidney, visit:
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a truck moves with a speed of 90 km/h for 45 mins and 120 km/h for next 20 mins find average speed
Average speed a truck moves with a speed of 90 km/h for 45 mins and 120 km/h for next 20 mins is 40.72km/h.
Average speed = Total distance / Total time
S = 73.3/ 1.8
S = 40.72km/h
Given:
90 km/h is the speed.
Time = 0.75 hours * 45 minutes
To calculate the distance travelled, substitute the following values into the distance formula:
Distance (D) is equal to the product of speed and time, hence D = 90 * 0.75 = 33.75 km.
Given:
120 km/hr speed
Time = 20 minutes = 0.3333 hours
To calculate the distance travelled, substitute the following values into the distance formula:
Consequently, the distance travelled overall is:
Distance equals speed times time, so D = 120*0.33 D = 39.6 km.
Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.
Use the formula d = st, or distance equals speed times time, to find the distance.
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d. f3 should be similar for most vowels, but not all. for which vowels is f3 noticeably different than the rest? (
Vowels are pronounced from back to front, increasing the frequency of the second formant. For front vowels like I and rear vowels like [u], the second formant (f2) is more frequent than the other.
How often does a wave occur?The number of a wave's oscillations per unit of time, expressed in hertz, is what is known as frequency (Hz). The relationship between pitch and frequency is straightforward.
Who or what uses frequency?When describing the temporal rate of change seen in oscillatory and periodic phenomena like mechanical vibrations, audio signals (sound), radio waves, and light, frequency is a crucial metric utilized in science and engineering.
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The compound dinitrogen oxide is a gas at room temperature. The two elements found in a sample of this gas
The two elements found in a sample of compound dinitrogen oxide, which is a gas at room temperature are nitrogen and oxygen.
What is dinitrogen oxide?Dinitrogen oxide or nitrous oxide is commonly known as laughing gas,
Dinitrogen oxide is a chemical compound, an oxide of nitrogen with the formula N₂O.
At room temperature, this gas is colorless, non-flammable gas, and has a slightly sweet scent.
Dinitrogen oxide or Nitrous Oxide is also called laughing gas or happy gas due to its intoxicating effects when inhaled.
From the chemical formula of Dinitrogen oxide which is written as;
N₂O = two nitrogen atoms and on1 oxygen atom
The compound of Dinitrogen oxide is made of;
2 atoms of nitrogen and 1 atom of oxygen
Thus, the compound of Dinitrogen oxide which is a gas at room temperature is made of two element. These two elements contained by the gas sample are known as nitrogen and oxygen.
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Answer:
nitrogen and oxygen.
Explanation:
the reason is cause i got it right
now consider the gaussian surface s2. with the charge still inside the cavity, what is the electric flux, in newton squared meters per coulomb, through surface s2?
Gauss's law states that the total electric flux through any closed surface is proportional to total electric charge inside the surface.
The electric flux is the measure of the electric field through a given surface. The electric field is the gradient of the potential. The density of the lines corresponds to the electric field strength, which could also be called the electric flux density. Electric flux is proportional to the total number of electric field lines going through the surface.
Electric flux has SI units of volt meters or equivalently newton meters squared per coulomb. Thus, the SI base units of electric flux are kg m3s -3*A-1.
The quantity EA1 is the electric flux through S1. We represent the electric flux through an open surface like S1. Electric flux is a scalar quantity.
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Based on observations, which of the following statements about stars in the Milky Way is generally true?
The older the star, the lower its abundance of heavy elements.
The less massive the star, the older it is.
The older the star, the bluer its color.
The older the star, the faster its orbital speed.
The younger the star, the higher its mass
Stars in the Milky Way, the older the star, the lower its abundance of heavy elements.
An element is a substance that can not be damaged down into a simpler layout. They may be distinguished by means of a completely unique atomic range. The elements are organized via their atomic variety in the periodic table, which highlights elements with similar residences.
Carbon is the most important detail of existence. Without this detail, existence, as we are aware of it, might not exist. As you will see, carbon is a vital element in compounds essential for lifestyles.
Kinds of elements :
1.) The elements are categorized as metallic, non-metal, and metalloid.
2.) The intense left aspect factors inside the periodic desk are metals, for example, sodium, calcium, cesium, and many others.
3) Elements such as non-metals, carbon, chlorine, oxygen, and many others.
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if a galaxy is moving away its hydrogen lines will shift toward the end of the spectrum.
When a source of light waves is moving away from the observer, the light waves appear to be dispersed. If the galaxy weren't moving, the spectral lines observed in the galaxy would be at shorter wavelengths.
Because the relationship between wave frequency and wavelength is inverse, gamma rays have incredibly short wavelengths that are barely a fraction of the size of atoms, whereas other wavelengths can go as far as the universe. Regardless of the medium they travel through, electromagnetic radiation's wavelengths are commonly represented in terms of the vacuum wavelength, even though this isn't always mentioned explicitly.
The wavelength of electromagnetic radiation affects its behavior. The speed of light is equal to wavelength times frequency. Frequency multiplied by the Planck constant equals energy. 1/wavelength is the wave number in cm. Along with the wavelengths of different parts of the electromagnetic spectrum, a rough estimation of the wavelength size is displayed..
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what is the function of the diaphragm on a microscope
The function of a diaphragm on a microscope is to control the amount of light that reaches the specimen.
What is a microscope?Microscope is an optical instrument that is used for observing relatively small objects. The microscope allows us see very small things that our eyes otherwise couldn't see.
Their ability to function is because they have been constructed with special components that enable them to achieve high magnification levels.
Some of the components of microscope are as follows;
Eye pieceObjective lensNose pieceDiaphragm or irisAdjustment knobStageCondenserApertureThe primary role of the diaphragm is to control the amount of light that reaches the specimen.
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