Answer:
The independent variable is that entered by the researcher - it does not depend on anything else in the equation
The dependent variable is the result obtained by applying the equation to the independent variable
One variable is entered by the researcher giving rise to the second variable.
In the study given the intensity depends on the average water temperature.
The independent variable is the water temperature and the dependent variable is the maximum strength of the hurricane
In scientific research processes there are several types of variables
* Those that can be controlled or manipulated by researchers, these are called independient variable
* The variables that are measured in the investigation are called dependent variables, these are influenced by the values of the independent and intervening variables
* There is a third type of variable called intervening that affect the results but cannot be identified or controlled by the researchers.
Based on this definition for this case the independent variable must be temperature, even though the researcher cannot control it directly, he can measure its value.
The dependent variable is the intensity or maximum strength and the number of hurricanes that can be measured by the researcher and create a relationship between the intensity as a function of the gulf water temperature.
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If the solar system were the size of your campus, how far away would the nearest star be?
About a mile away.
About 100 miles away.
About 2,000 miles away.
An infinite distance away.
The solar system is very large with the boundaries located around the Orth cloud 100,000 Astronomical Units away
The correct option for, the distance to the nearest star if the solar system were the size of a campus is the option;
About a mile away
The reason the above selection is correct is as follows:
The nearest star to the solar system is Proxima CentauriThe distance of the nearest star to the solar system from Earth is 40,208,000,000,000 kilometers awayThe area of the solar system is about (π × (10⁵ × 149.6 × 10⁶)²) km²The size of one of the largest campus can be taken as 27,000 acres = 109.2651 km²The ratio of the area of the solar system to the area of a campus = (π × (10⁵ × 149.6 × 10⁶)²)/(109.2651) = 6.4347487 × 10²⁴
Therefore, the linear scale factor ≈ √(6.4347487 × 10²⁴) ≈ 2.5366807 × 10¹²
Therefore, the corresponding distance to the distance of the nearest star to the solar system, X is given as follows;
X = (40,208,000,000,000 km)/(2.5366807 × 10¹²) ≈ 15.85 km ≈ 9.85 miles
Given that compared with the largest campus the distance is at most approximately 9.85 mile, if the solar system is taken to be a much smaller campus, the distance of the closest star Proxima Centauri will be about a mile away
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If mass of body is 10 kg then its weight on moon is:
Please help
Answer:
moon gravity is about one sixth of earth gravity
W = 10(9.8/6) = 16 N
Object X is attracted to object Y. If object Y is negatively charged, what can you say about object X? (a) It is positively charged (b) It is negatively charged (c) It is electrically neutral (d) Object X may be positively charged, but it is possible it is also electrically neutral with an induced charge separation
Answer:
a) Object X is positively charged
Explanation:
Unlike charges attract each other
Like charges repel each other
The object X will be positively charged through charging by conduction.
The given parameters:
Object Y = positively chargeA charge can be produced by conduction. This method of charge generation involves charging a neutral body by placing it in contact charged body.
When object X is placed in contact with object Y, which is negatively charged, the negative charges of object Y repels negative charges of object X. This leaves object X with excess protons, thereby becoming positively charged.
Thus, the object X will be positively charged through charging by conduction.
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Which definition best explains science? (1 point)
Answer: c is the correct answer
Explanation:
Option C is the correct answer.
Definition of Science: A way of discovering and knowing about the world.
Science
Science can be defined as the knowledge and understanding of the natural and social world following a systematic methodology based on evidence.
The scientific methodology includes objective observation, measurement and data evidence.
Science is a system of observations and experiments used to gain knowledge about how the universe works. Observations describe how and why things happen the way they do. Experiments are investigations used to explain how the world works.
Hence option C represents the best definition.
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Determining a formula for the change in surface area of a uniform solid sphere of radius r if it's Coefficient of linear expansion is a (assumed constants )and its temperature is changed by DT
Answer:
Explanation:
Area A = 4 pi R^2
lnA = ln(4 pi) + 2 ln R
dA/A = 2 dR/R = 2*(alpha)*dT
delta A = 2A*alpha*(delta T)
OR
A at T + deltaT
delta A = 4 pi (R + deltaR)^2 - A
= 4 pi R(1 + alpha*deltaT)^2 -A
= 4 pi R^2 *[1 + 2*alpha*deltaT +
(alpha*deltaT)^2] - A
= 2*A*alpha*deltaT + A*(alpha*deltaT)^2
(Ignore the second term in deltaT^2)
distinguish between basic and derived units
Answer:
Base units are defined units based on specific objects or events in the physical world. Derived units are defined by combining base units.
Base units are defined by a particular process of measuring a base quantity whereas derived units are defined as algebraic combinations of base units. For example, length is a base quantity in both SI and the English system, but the meter is a base unit in the SI system only.
6. A journalist is testing the acceleration of a new car. He measures the final velocity of the car to be 15 m/s. If the
car was initially stopped 10 s before the journalist made her measurement, what is the car's acceleration?
Answer:
1.5 m/s^2
Explanation:
Don't rlly understand the question, but I'll just take it as the initial velocity is 0
a = 15 - 0
- - - - - -
10
= 1.5 m/s^2
calculate the valocity of water wave if the frequency is 400hz the wavelength is 6m and amplitude of the wave is 3.76cm
Explanation:
V = 400x6 = 2400m/s
V = 2400m/s
The velocity of a water wave if the frequency is 400hz the wavelength is 6m and the amplitude of the wave is 3.76cm will be 2400 m/s.
What is Wavelength?
It can be understood in terms of the distance between any two similar successive points across any wave for example wavelength can be calculated by measuring the distance between any two successive crests.
The velocity of water wave = Wavelength x Wave Frequency
= 6 × 400 m/s
=2400 m/s
Thus, The velocity of a water wave if the frequency is 400hz the wavelength is 6m comes out to be 2400 m/s.
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Is the following research description experimental, descriptive, or applied?
Jenna does a study to see if sugar and hyperactive behavior in children are related.
Answer:
It is experimental. She will testing or investigating on children. So yeah, it is experimental
The heating element of an electric oven is designed to produce 3.9 kW of heat when connected to a 240-V source. What must be the resistance of the element?5)A 120-V hair dryer has two settings: 950 W and 1400 W .a) Determine the resistance at 950 W setting.b) Determine the resistance at 1400 W setting.
The heating element of an electric oven is designed to produce 3.9 kW of heat when connected to a 240-V source. Then the resistance of the element is 14.7Ω
When A 120-V hair dryer has two settings: 950 W and 1400 W then the resistance at 950 W is 15.15Ω and at 1400 W is 10.28Ω.
What is Electric Power ?The pace at which electrical energy is transmitted by an electric circuit is referred to as its power. The watt is the SI unit of power, equal to one joule per second. Watts, like other SI units, have standard prefixes: thousands, millions, and billions of watts are referred to as kilowatts, megawatts, and gigawatts, respectively.
It is a popular misperception that electric power is purchased and sold, whereas electrical energy is. Electricity, for example, is sold to users in kilowatt-hours (kilowatts multiplied by hours), because energy is defined as power multiplied by time.
In this problem,
Given,
Power P = 3.9 KW
Voltage V = 240 V
P = V²/R
3.9 × 10³ = 240²/R
R = 240²/3.9 × 10³
R = 14.7Ω
For hair dryer,
given,
P = 950 W or 1400 W
V = 120 V
P = V²/R
950 = 120²/R
R = 120²/950
R = 15.15Ω
P = V²/R
1400= 120²/R
R = 120²/1400
R = 10.28Ω
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10. What is a rule for determining the mass?
Answer:
Mass number is the sum of the protons and neutrons in the atomic nucleus.
The mass number (A) is the sum of the atomic number (Z), which is the number of protons, and the number of neutrons (N) in the atomic nucleus of an isotope of an element. A=Z+N
N2 + 3H2 + 2NH3
What type of reaction is this
Answer:It is a combination reaction; nitrogen and hydrogen combine to form ammonia
Explanation:
This is the reaction that is used to make ammonia from hydrogen and nitrogen. In this reaction, only one product is formed. Therefore, this reaction is known as a combination reaction.
A shot putter puts the shot at a velocity of 14 m/s (assume this represents a constant horizontal
velocity). The shot is in the air for 1.4 seconds. How far did the shot travel?
S = (v-u)t/2
s = (14)1.4/2
s = 9.8m
The range of the shot will be "19.6 m". A complete solution is provided below.
The given values in the question are:
Horizontal velocity,
v = 14 m/s
Time,
t = 1.4 sec
Now,
The Range will be:
= [tex]Velocity\times Time[/tex]
By putting the given values, we get
= [tex]14\times 1.4[/tex]
= [tex]19.6 \ m[/tex]
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hằng số phổ biến chất khí
Answer:
please in english......................................
Explanation:
Convert the following in to SI units without changing its values
a. 4000 g
b. 2.4 km
hi <3
i believe i explained this answer properly in my last answer but it would be 4kg and 2400m as these are the SI units for these values.
hope this helps :)
hi :D
i believe i explained this answer properly in my last answer but it would be 4kg and 2400m as these are the SI units for these values.
hope this helps :)
You are taking a turn at 30.0 m/s on a ramp of radius 25.0 m. What is your acceleration?
Acceleration = v^2 / r
Acceleration = 30^2/25
Acceleration = 900/25
Acceleration = 36 m/s^2
A vehicle starts from rest and travels 50 m in 5 s. What is its acceleration?
find the final velocity of the initial velocity of 8m/s with an acceleration of 7 m/s2 over 3 second interval
Please find attached photograph for your answer. Hope it helps! Please do comment.
Help me write this three paragraph Physics essay. I'll Venmo you, give me asking price.
Answer:
Physics, or the study of matter, energy, and the interactions between them, helps us to understand the laws and rules that govern the physical world. Not every student will grow up and study physics on a deeper level, but everyone uses basic physics concepts to navigate everyday life.A
Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the study of nature in an attempt to understand how the universe behaves.Physics helps you to understand the world around you, and satisfy your curiosity. Studying physics develops your critical thinking and problem-solving skills. Physicists are versatile, which opens a wide range of future careers.
Being willing to sincerely apologize for mistakes errors and blunders goes a long way toward
Answer:
All of the above ! Hope this helps! ♥
Explanation:
Being willing to sincerely apologize for mistakes, errors, and blunders goes a long way toward nurturing relationships with customers and retaining customers. Option (c) is correct.
What do you mean by Apology?Apology means to express regret for having done something that has caused another person problems or misery
Sincere apology aids in mending ties with those you've harmed. That may include coworkers, customers, friends, or family.
You can start a conversation with the other person by owning up to your error. You can then consider your actions and accept responsibility for them. Also, they can deal with their emotions, regain their composure, and refrain from taking responsibility for what transpired.
You may improve your behavior going forward, keep your dignity, and regain people's respect by apologizing.
Therefore, Option (c) is correct.
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Your question is incomplete, most probably the complete question will be;
Being willing to sincerely apologize for mistakes, errors, and blunders goes a long way toward:
Helping to learn from mistakes
Helping nurture the relationship with customers
Retaining customers
All of the above
If you are given force and time, you can determine power if you can know
(a) watts
(b) energy
(c) distance
Answer:
joules/energy.
Explanation:
power is defined as the rate of work. Hence power=work/time, then you obtain Watts.
Work is the product of force and displacement.
A mountain climber at the peak ha ___________ energy.
A.gravitational potential
B. Elastic potential
C.Kinetic
P= 2/3(N/V)1/2mv^2
Solve for v
your question:
P= 2/3(N/V)1/2mv^2 Solve for v
answer:
v=√2Vem
4. A car slows down from 36 km.h to stop in 25 s. 4.1 Define "acceleration”. 4.2 Convert 36 km:h-' to m's-1.
1. Acceleration is the change in velocity of an object per unit time.
2. 36 km/h
= 36000 m/60×60 s
= 36000 m/3600 s
= 10 m/s
Hope it helps! Please do comment
what is kinematics ???
what is it concerned with ??
Kinematics deals with the motion and time
It is concerned with motion
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
What's kinematics? What is it concerned with?[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]
Kinematics is a branch of mechanical physics that deals with motion. It includes all types of motion & all ways of showing motion (like, through graphs, moving objects & so on). In short kinematics is the => geometry of motion.The electric field is generated by charge +Q. Which arrow represents the direction of the electric field at point P that is at distance of “r” from +Q? Magnitude of the E at the point P
Answer:
it is p
Explanation:
because it makes more sense
Convert 4 centimeters to meters using dimensional analysis and scientific notation. Please go step by step as I am having difficulty with this subject.
Question:-
Convert 4cm to m
Solution:-
Lets do
First note down the below formula
[tex]\boxed{\sf 1m=10^{2}cm}[/tex]
Then
[tex]\boxed{\sf 1cm=10^{-2}cm}[/tex]
Now we are given 4cm
So convert
[tex]\\ \sf\longmapsto 4\times 10^{-2}m[/tex]
If we simplify to decimal
[tex]\\ \sf\longmapsto 4cm=0.04m[/tex]
Hence done .
11. Approximatrly how many kelvins are equal to 60°F?
a. 439
b. 212
c. 902
d. 289
3. The equation of motion of a SHM oscillator is x=0.5msin(2πf)t, where x is in meter and t is in seconds. If the position of the oscillator is at x=0.25m and t=0.25s . what is the frequency of the oscillator ?
Answer:
f = 1/3 Hz
Explanation:
0.25 = 0.5 sin(2πf)0.25
0.5 = sin(0.5πf)
take arcsine of both sides in radians
0.52359 = 0.5πf
f = 0.52359 / 0.5π = 0.33333...
The frequency of the oscillator is 0.33 Hz.
We have an equation of SHM.
We have to identify the frequency of the oscillator.
What are the conditions for a motion to be Simple Harmonic ?The conditions are -
The restoring force must be proportional to the displacement.The restoring force should act opposite to the direction of motion with no drag forces or friction.According to the question, we have -
x = 0.5 sin(2πft)
Substituting the values -
0.25 = 0.5 sin(2πft)
sin(2πft) = 0.5
sin(2πft) = 1/2
sin(2πft) = sin(π/6)
2πft = π/6
2ft = 1/6
f = [tex]\frac{1}{12t}[/tex] = [tex]\frac{1}{12\times 0.25}[/tex] = 0.33 Hz
f = 0.33 Hz
Hence, the frequency of the oscillator is 0.33 Hz
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The microwave portion of the spectrum has wavelengths ranging from 1 mm to 1 m. Find the corresponding frequencies. g
Answer:
f = c / y where y is the wavelength
f1 = 3 *10E8 m/s / .001 m = 3 * 10E11 / s
f2 = 3 * 10E8 m/s / 1 m = 3 * 10E8 / s
