The surface conditions on Venus are more extreme than on Earth, with temperatures ranging from 453 to 473 °C and pressures of 95 bar.
Venus's surface is more hostile than Earth's, with temperatures between 453 and 473 °C and pressures of 95 bar. Venus is devoid of water, which strengthens the crustal rock and preserves surface characteristics. The observed characteristics demonstrate the geological processes at play.
Venus lacks surface water and has a poisonous, thick atmosphere that is nearly completely formed of carbon dioxide and sulphuric acid clouds. The atmospheric pressure at the surface of Venus is almost 90 times greater than that of the Earth at sea level. At a scorching 750 K (477 °C), Venus' surface is the solar system's warmest.
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Our solar system was created by the gravitational collapse of the _____.
Answer:
Solar Nebula?
Explanation:
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. (I thought everyone knew this.)
The purpose of the area divider is to:
a.) accomodate large differential movemenets between adjoining... b.) accomodate some movement in the membrane itself c.) channel water toward roof drains d.) channel water toward scupper drains. e.) help the membrane...
The purpose of the area divider is to accommodate some movement in the membrane itself.
Essentially, a classical particle cannot cross a potential barrier. According to the quantum theory, an exponential with a negative real exponent describes how a particle's motion continues under a barrier. Such a function degrades quickly, and if the width (or height) of the barrier is significant, the amplitude of the wave function behind the barrier is insignificant, making it impossible for a particle to pass through the barrier.
However, the exponent retains an appreciable value behind a relatively narrow and/or low barrier, indicating that a particle may exist there. The likelihood of a particle passing through a barrier is given by the square of the ratio between the transmitted wave's amplitude behind the barrier and the incident wave's amplitude. The transparency of the barrier is the name given to this value.
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g comment on how the calculated frequencies and their uncertainties compare to the true frequencies.
The frequency uncertainty is determined by way of the receiver's frequency accuracy and is related to the frequency span in which the sign becomes captured or measured.
determined by using Band.
Low = 1 sample / RBW.
Med = 2 samples / RBW.
decide = (choicest) three samples / RBW.
high = 4 samples / RBW.
At the same time as accuracy shows how near a dimension is to its real value, uncertainty takes into consideration any statistical outliers that do not conform. those may additionally exist because of anomalies, changes, or different outdoor factors. To factor those anomalies at once into an instrument's accuracy could be misleading.
In case we are adding or subtracting unsure numbers, then the numerical uncertainty of the sum or difference is the sum of the numerical uncertainties of the 2 numbers. as an instance if A = 3.four±. 5 m and B = 6.3± . 2 m, then A+B = nine.7± .
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why do we say that force is a vector quantity
Force is a vector quantity because its acceleration times a scalar constant (mass) equals the force (a vector quantity).
Why is force considered a vector quantity?The product of an object's mass and acceleration is used to calculate the force acting on it. A vector quantity is acceleration. Since force is a scalar constant (mass) multiplied by acceleration, which is a vector quantity, force is also a vector quantity (a vector quantity).
Because it genuinely depends on the direction in which a force is applied, force can be thought of as a vector quantity. Physically, the force can be felt as a push or a pull. This is illustrated by many physical examples.
For instance, it makes sense that we must push an object upward in order to make it move upward. It simply remains fixed if we push it downward. Knowing which direction it is pushed is crucial.
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A mass of 0.30 kg on the end of a spring oscillates with a period of 0.45 s and an amplitude of 0.15 m. Part A Find the velocity when it passes the equilibrium point. Express your answer with the appropriate units. 0 HA ? V= Value Units Submit Request Answer Part B Find the total energy of the system. Express your answer with the appropriate units. HA ?
The answer is k = 58.486.
Part A. V = 2.094 m/sec
Part B. E = 0.6579 J
Solution:
T = 2√m/k
T² = 4n²m/k
k = 4n²m/T² = 4n² x 0.30/(0.45)²
k = 58.486.
The total energy of a system is the sum of kinetic energy and gravitational potential energy, and this total energy is conserved in one orbital motion. A minimum velocity is required for an object to leave the planet and not return. The total energy operator is called the Hamiltonian operator H and consists of the kinetic energy operator and the potential energy operator. The total energy at any stage of a moving fluid is the sum of the internal static velocity and potential energies at that stage.
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A photon with energy 2.30 eV is absorbed by a hydrogen atom. A is 3
b) Find the speed of the electron released from the state in part (a) when it is far from the nucleus.
km/s
The speed of the photon has been obtained as 8.9 * 10^5 m/s.
What is the speed of the electron?We know that the energy of the photon would be converted to the kinetic energy of the photon s it is moving. We would now go ahead to obtain the energy in joule.
We now have;
Energy in joules = 2.30 * 1.6 * 10^-19
= 3.68 * 10^-19 J
Then we know that;
KE = 1/2mv^2
KE = kinetic energy
m = mass of the electron
v = speed of the electron
Then
v^2= 2KE/m
v = √2KE/m
v = √2 * 3.68 * 10^-19/9.11 * 10^-31
v = 8.9 * 10^5 m/s
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Earth's gravity ______________ a pebble in your hand.
A. Does not pull
B. Pulls
Question:
Earth's gravity ______________ a pebble in your hand.
A. Does not pull
B. Pulls
Answer:
Pulls
a spehere with a mass m and a radius r rolls down a ramp that makes an angle theta with the horizontal
The acceleration of the roll ramp is a = mR² sinθ / I + mR²
The mass of the given object is m
And the radius of the given object is r
the angle of the ramp is given as θ
The expression to calculate the given equilibrium of the object :
mgsinθ - f = ma
this implies f = m( a + gsinθ)
Here we can write
I a' = fR
a' = ( m ( a + gsinθ) ) R / I
The expression without the value of friction can be written as
a = Ra'
Substitute the values in the above expression and we will get:
I a = mR² ( a + gsin θ )
On further solving it by opening the brackets we get
a = mR² sinθ / I + mR²
The acceleration of the roll ramp is a = mR² sinθ / I + mR²
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PLEASE ANSWER WILL MARK BRAINLIEST IF YOU EXPLAIN HOW YOU GOT THE ANSWER!!!!!!
I’m not sure if the answer I chose is correct or not
If there is a decrease in the angle of inclination, the acceleration would decrease accordingly.
What is the acceleration?We know that the acceleration is the change in the velocity of the object with time. Given that the mass of the pulley remains the same and the puly is being moved up the incline as we can see.
We have to also recall that we have been told that the incline is frictionless and as a result we are not going to consider the frictional force. In any case, the force that moves the pully along the incline stull depends on the angle of inclination.
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Shown following are the names of several eras that are used to descried the history of the universe. Rank the eras from left to right in the order in which they occurred from first to last.
1. era of nucleosynthesis - fusion created helium nuclei
2. particle era - protons, neutrons both common
3. era of nuclei - H, He nuclei and electrons existed, but no neutral atoms
4. era of atoms - neutral atoms existed, but not stars
5. era of galaxies - stars and galaxies common
6. Planck era - all 4 forces operated as one
7.electroweak era - 3 forces operated: gravity, strong, electroweak
8. GUT era - strong, electroweak forces unite as GUT force
The Big Bang signified the beginning of the expansion of the universe from a singularity (or a region very close to one), a single point that was infinitely small, infinitely hot, and endlessly dense.
What eras that are used to the history of the universe?It is the era of the stars, galaxies, and life. Approximately 150 million years after the Big Bang, the universe entered this phase, which is predicted to last up to 86 billion years from now, when the cosmos will be able to celebrate its 100 billionth birthday.
Therefore, From first to last: Planck era, GUT era, electroweak era, particle era, era of nucleosynthesis, era of nuclei, era of atoms, era of galaxies
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if an object is moving eastward and slowing down, then the direction of its velocity vector is .
If an object is moving eastward and slowing down, then the direction of its velocity vector is east.
Understanding the idea of the velocity vector and how it significantly relates to that of position is necessary in order to solve the given problem. There will be some direct relationship between the distance traveled by the object and the magnitude of velocity at the same time interval since the mathematical relation for velocity is given by differentiating the expression for the distance traveled at any time instant.
Any object that has a tendency to move in a particular direction will also have a corresponding velocity vector. According to the concept presented, the object's velocity vector will also be moving in an easterly direction in the given situation since it is moving in that direction.As a result, it is inferred that an object moving in an easterly direction will also have its velocity vector point in that same direction.To understand more about velocity -
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One way to store energy is in the rotational motion of a flywheel, and some have proposed using such technology to power automobiles. One unit is based on a 7.0-kg flywheel in the shape of a hoop of radius 0.11 m that spins as fast as 50000 rpm.a. How much kinetic energy is stored by the flywheel when it is rotating at its maximum rate?b. If the vehicle requires an average power of 11 kW under normal driving conditions, for how much time can it operate with the energy stored in the flywheel?
Rotational energy is described as a form of kinetic energy. It is linked with a rotating object so instead of a linear speed, we have to use angular velocity (ω) in our calculations.
Rotational Energy =0.5Iω ²
Moment of inertia (I) = mass×(radius)²
Mass=7kg
Radius=.11²m =.0121
ω = Angular velocity or RPM (revolutions per minute)
7×.0121 = 0.084 kgm²
Rotational Energy stored in wheel =.5×0.08kgm²×5235.9rad/sec
= 209.43 J
Power(P) = Energy/Time
=209.43/T
T=E/P
= 209J/11kW
=19 seconds
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What three factors determine the amount of voltage induced into a conductor?
1.The turns of wire.
2.The strength of the magnetic field.
3.The speed of the cutting action.
Three factors that determine the amount of voltage induced into a conductor are : size of the magnetic field, active length of the conductor and speed at which the conductor passes through the field.
What are the factors that determine amount of voltage induced in a conductor?Faraday's Law explains that inducing a voltage in conductor can be done by either passing it through a magnetic field or by moving the magnetic field past the conductor and if the conductor is part of a closed circuit, an electric current will flow.
Coils of wire are used to increase the induced voltage and current because the EMF generated is proportional to the time rate of change of magnetic flux as per Faraday's Law.
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Which of the following is not one of the three major categories of galaxies? A Elliptical galaxies B. Globular galaxies O C Irregular galaxies O D. Spiral galaxies
Globular galaxies of the following is not one of the three major categories of galaxies.
The correct option is B.
What is galaxies and its types?Astronomers classify galaxies into three basic categories: elliptical, spiral, and erratic. These galaxies come in a wide range of sizes, from star clusters with as few as 100 million stars to massive galaxies with more than a trillion stars.
How do galaxies develop?Massive gas clouds that fall and rotate are the starting point for galaxies. Stars develop within them as they develop. The collision of entire galaxies can alter their appearance. We can view galaxies at early phases of development by gazing deep into space, which helps us understand how galaxies evolve.
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which sublevels are in each of the following principal energy levels? (a) n = 1 (b) n = 2 (c) n = 3 (d) n = 4
The outermost energy shell of the atom, where the electrons are situated in relation to the nucleus. the energy levels are- 1 (only"s"), 2 ("s","p"), 3 ("s","p","d"), 4 ("s", "p", "d", "f").
Describe the concept of energy levels.An atom's energy level is the set distance between its nucleus and any potential location for electrons. Additionally, energy levels might be compared to a staircase's steps.
What exactly does low energy mean?Most major diseases, including heart disease, many types of cancer, autoimmune diseases like lupus and multiple sclerosis, and anemia, commonly manifest with a lack of energy (too few red blood cells). Another typical indicator of depression and anxiety is fatigue. Additionally, a side effect of several drugs is weariness.
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As a system becomes more disordered, entropy a. increases. b. remains the same. c. decreases. When a volume of air is compressed, its temperature a. increases. b. decreases. c. neither increases nor decreases.
As a system becomes more disordered, entropy increases (Option a). Moreover, when a volume of air is compressed, its temperature also increases (Option a).
What is the entropy level of a system?The entropy level of a system can be defined as the level of disorder that depends on the internal energy of the such system (either closed or open system).
Therefore, with this data, we can see that the entropy level of a system depends on the disorder levels and it is higher when more disorder is present in the system.
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A reasonably uniform magnetic field over a limited region of space can be produced with the Helmholtz coil, which consists of two parallel coils centered on the same axis. The coils are connected so that they carry the same current I. Each coil has N turns and radius R, which is also the distance between the coils.
(a) Find the magnitude of the magnetic field at any point on the z-axis shown in the accompanying figure. (Use any variable or symbol stated above along with the following as necessary: z and µ0. Assume the origin is located halfway between the coils.)
(b) Show that dB/dz and d 2B/dz2 are both zero at z = 0. (These vanishing derivatives demonstrate that the magnetic field varies only slightly near z = 0.)
According to the formula, 2 moles of Co will magenetic produce 2 mole of CO2 and 1 mole of O2 prednisone will produce 2 moles of CO2. This is 602 for 1 mole. 0.5 mol of O2 is consumed. 0.344/2 = 0.172 mol
mol O2 is required, so O2 has a limiting reagent, so O2 mol has 0.172 mol, 0.344, therefore Co
: mol CO₂ production= 0.196 Particles
grams CO₂ production = 0.196 • Hook x 44.01 g CO₂ = 8.6259 g.Co₂
grams CO₂ 2.63 g = 863
5.50G 5.50G
MOL VON LA H 5,50 x I Mol 5,998 15.444
444 444
444
444
444
444
44
२८०२
mol CO = massmolar mass 5,50 g xX I mol
28-018 444 4 =4 mol 4
mols of la H 5.50 x × I mols
5.998 15.
0.344 mol. It represents the absolute or relative direction or magnitude that an object is moving in the sense of motion. Used to describe the size or extent of something. In physics, size generally refers to entities.
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Compare and contrast its wavelength frequency and energy with those of other regions of the ems.
The electromagnetic spectrum demonstrates the relationships between energy, wavelength, and frequency.
The electromagnetic radiation bands can be used to define the electromagnetic spectrum. The gamma rays, which have the shortest wavelengths but the highest frequencies, at the bottom and radio waves, which have the longest wavelengths and the lowest frequency, at the top. The visible spectrum is depicted in magnified form. It is an extremely narrow band of wavelengths, frequencies, and energy that makes up the entire electromagnetic spectrum.
For instance, observe that the threshold between microwaves and radio waves is around 10 in the wavelength column. Consider the wavelength column, where the separation between microwaves and radio waves is approximately 10 cm. The energy carried by these waves ranges from 1.24 eV (microelectron volts) to 1.24 MeV, with 3GHz (gigahertz) being the corresponding value in the frequency column.
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A chef drop a pumpkin pie of ma 1. 7kg from a height of 1. 875 meter. How long doe it take the pie to hit the ground?
If a chef drops a pumpkin pie of mass 1.7 kg from a height of 1.875 meter, the time taken by the pie to hit the ground is 0.62 s
According to equations of motion,
s = ut + 1 / 2 at²
s = Distance
u = Initial velocity
t = Time
a = Acceleration
Since it is dropped,
u = 0
g = 9.8 m / s²
s = 1.875 m
s = ut + 1 / 2 at²
1.875 = 0 + ( 1 / 2 * 9.8 * t² )
t² = 1.875 / 4.9
t² = 0.385
t = 0.62 s
Therefore, the time taken is 0.62 s
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Could someone help me with this
Assuming a flat ground, and football thrown or dropped from the same height, the horizontally-thrown ball will hit the ground with the same vertical velocity as the dropped ball, but it will have most of its initial horizontal velocity, too. A simple vector addition, guarantees that that the horizontally-thrown ball will have a larger total velocity than the dropped ball.
What is Velocity.
Velocity is the directional velocity of a moving object as an indicator of the rate of change of position observed from a particular frame of reference and measured at a particular time standard.
Therefore, A simple vector addition, guarantees that that the horizontally-thrown ball will have a larger total velocity than the dropped ball.
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Salt water is more dense than fresh water. A ship floats in both fresh water and salt water. Compared to the fresh water, the volume of salt water displaced by the ship A.is less than the volume of fresh water. B.is greater than the volume of fresh water. C.is the same as the volume of fresh water. D.cannot be compared without knowing the mass & volume of the ship.
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
An Object's Moment Of Inertia Is 2.0kg?M2 . Its Angular Velocity Is Increasing At The Rate Of 3.8rad/S Per Second. What Is The Net Torque On The Object?
The Net Torque On The Object =7.6 N-m.
The force will cause a torque. The net torque is the sum of the person torques. Rotational Equilibrium is similar to translational equilibrium, where the sum of the forces are same to zero. In rotational equilibrium, the sum of the torques is equal to zero.
The individual torques upload to provide a internet torque approximately the axis. when the ideal sign (fine or bad) is assigned to the magnitudes of character torques approximately a designated axis, the internet torque approximately the axis is the sum of the character torques: →τnet=∑i|→τi|.
Solution:-
Torque= momentInertia*angularacceleration
=> torque= 2.0 x 3.8
=>torque =7.6 N-m
here,
Angular acceleration ,
a = 3.8rad/s^2
then
Torque = I * a = 2 * 3.8 = 7.6 N.m
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Jupiter's _____ _____ ______ is a giant storm about three times wider than the diameter of Earth and at least 100 years old.
Jupiter's great red spot is a giant storm about three times wider than the diameter of Earth and at least 100 years old.
A massive storm larger than Earth that has been raging for hundreds of years is Jupiter's famous Great Red Spot.
Numerous moons orbit Jupiter around it. Jupiter also has a number of rings, but they are much fainter and made of dust rather than ice, unlike the well-known rings of Saturn.
It is mostly Jupiter's fault that it is difficult to comprehend the Great Red Spot. Jupiter is a gas-dominated planet that is a thousand times larger than Earth. Its core is surrounded by a liquid ocean of hydrogen, and the atmosphere is primarily made up of helium and hydrogen.
Jupiter's clouds also make it difficult to make precise observations of its lower atmosphere. While some studies of Jupiter have looked at regions in its lower atmosphere, orbiting telescopes and probes studying the Great Red Spot can only see clouds dispersed high in the atmosphere.
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Suppose you are holding a box in front of you and away from your body by squeezing the sides, as shown in (Figure 1) .
Part A
Choose the correct free-body diagram showing all of the forces on the boxWhat is the force that is holding the box up, the force that is opposite the weight force?
normal force
kinetic friction force
gravitational force
static friction force
The force that is holding the box up, the force that is opposite the weight force is normal force.
option A is the correct answer
What is normal force?
The normal force is an everyday force that is felt when a surface pushes against an object that is placed on that surface.
According to Newton's third law of motion, for every action there is equal and opposite reaction. That is the force experienced by an object is equal in magnitude to the reaction exerted by the object.
Fa = Fb
where;
Fa is the force experienced by the objectFb is the reaction exerted by the objectThe weight of every object acts downwards while the normal force or normal reaction of the object due to surface on which the object is resting acts upwards.
Thus, the force that is holding the box up, the force that is opposite the weight force is the normal force, since action force and reaction force are equal and opposite.
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21. The coefficient of friction acting upon a 1500 kg car is 0.75. The car is making a 180-degree turn around a curve with
a radius of 25 meters. Determine the maximum speed with which the car can make this turn.
a. 187.5 m/s
b. 209.44 m/s
c. 13.69 m/s
d. 7.5 m/s
The maximum speed with which the car can make the turn is 13.69 m/s (Option C)
How do I determine the maximum speed?We'll begin by obtaining the force. This can be obtained as follow:
Mass (m) = 1500 KgAcceleration due to gravity (g) = 10 m/s²Normal reaction (N) = mg = 1500 × 10 = 15000 NCoefficient of friction (μ) = 0.75Force (F) = ?F = μN
F = 0.75 × 15000
F = 11250 N
Finally, we shall determine the maximum speed. Details below:
Radius (r) = 25 metersMass of car (m) = 1500 KgForce (F) = 11250 NMaximum speed (v) =?F = mv²/r
11250 = (1500 × v²) / 25
Cross multiply
1500 × v² = 11250 × 25
Dive both sides by 1500
v² = (11250 × 25) / 1500
Take the square root of both sides
v = √[(11250 × 25) / 1500]
v = 13.69 m/s
Thus, the maximum speed is 13.69 m/s (Option C)
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Correctly identify the bones of the skull. Frontal bone Sphenold bone Vomer Temporal bone Inferior concha Parietal bone Mandible Zygomatic bone Lacrimal bone Ethmoid bone Frontal bone Maxilla Nasal bone Nasal bone
The bones of the skull includes the following:
Frontal boneSphenoid boneTemporal bone Parietal bone Ethmoid boneWhat is the frontal bone?
The frontal bone in an adult is an unpaired bone that is a part of the boney structure that forms the anterior and superior portions of the skull.
The frontal bone consists of two parts which are
the vertically oriented squamous part, and the horizontally oriented orbital part,These two parts makes up the bony part of the forehead, part of the bony orbital cavity holding the eye, and part of the bony part of the nose respectively.
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c) use the ruler tool (the units are in mm) on the bottom right to measure the extension of the spring with the 100g mass. convert this mass in grams to kg and then convert to w weight
A gram is now defined as 0.001 kilograms (kg).
Hooke's Law states that F = -kx.
Spring constant is the name given to the proportional constant k. It represents a stiffness measurement for the spring.
Calculation:
Given that, mass = 100 g = 0.1 kg
We shall multiply mass by the gravitational acceleration to determine the weight:
= 0.1 * 9.8 = 0.98
Force has a value of 0.98 N, which is also the value.
There is a 170 mm extension.
In light of this, the 100 g spring's extension is 170 mm.
What is the mass of a gram?In terms of Planck's constant, a gram is now defined as 0.001 kilograms (kg). Under standard gravity, a gram of mass has the same weight as a gram of force.
What exactly is the mass formula?It is defined as the mass of one mole of the chemical substance or as a ratio of the mass of a chemical compound to its constituent chemical component. Molar mass is measured in kg/mol. The mass formula is given as. Mass = ρ × v.
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the perception of flashing lights on a christmas tree as continuous movement can be explained by the optical illusion
The perception of flashing lights on a christmas tree as continuous movement is due to optical illusion.
Perceptual Illusions: the misinterpretation of a real external, sensory experience. The action of deceiving, especially by appearances. An instance of the sense perception of an external object suggesting a false belief as to its nature.
Induced Motion: an illusion of motion, experienced because we have a strong tendency to assume that the object moves, while the background is stationary.Optical Illusions: an instance of something having an appearance so resembling something else as to deceive the eye; mental misapprehension caused by this. An illusion of vision usually affecting “spatial” relations. Also referred to as ‘visual illusions.’Somatic Illusions: tricks used to make parts of your body feel like they are growing, shrinking, bending, etc. Examples (include) ‘Pinocchio,’ ‘Shrinking Waist,’ ‘Doorframe,’ and ‘Rubber Hand.’To know more about optical illusions visit:
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A rock is thrown with an initial velocity of 6 m/s at an angle of 30
degrees. What is the initial velocity of the rock in the x-
direction?
Answer:
6.9 m/s
Explanation:
if i1/i0=4/5, find i2/i0. express the ratio i2/i0 numerically.
If i1/i0=4/5, the ratio of i2/i0 is 0.667 when applied across the resistor.
What is resistor?Resistor is defined as a two-terminal passive electrical device that uses electrical resistance as a circuit component. High resistance resistors will withstand a lot of electric current.
We can say that I1 / I0 = 4/5 , I1 = 4 and I0 = 5.
We know that V = IR So, I = V / R
Thus I0 = 5 V /1 so, V = 5
V = IR
5 = 4 x (Ru +Rr)
5 = 4 x (1 + Rr)
Rr = 0.25
So, for I2
V = I2 x R
V = I2 (Rr + Rr + Ru)
5 = I2 x (1.5)
I2 = 3.333
So, the ratio is I2 / I0 = 3.333 / 5 = 0.667
Thus, if i1/i0=4/5, the ratio of i2/i0 is 0.667 when applied across the resistor.
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