1. When an object moves it acquires
(a) friction
(b) traction
(d) speed
(c) energy of motion

Answers

Answer 1
It acquires energy or motion.
Answer 2

When an object moves it acquires energy of motion. An thing that is in motion gains energy of motion, often known as kinetic energy. The energy an item possesses as a result of its motion is known as kinetic energy.

The item accumulates kinetic energy when it moves faster or at a specific velocity. The mass and speed of the item affect the quantity of kinetic energy.

Kinetic energy is calculated as KE = 0.5 * mass * velocity * 2. Because of the direct connection between an item's speed and the energy required to move it, the kinetic energy of an object grows exponentially as its velocity rises.

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Related Questions

A wave that is traveling toward an interface is called the...??

Answers

Answer:

Surface wave

Eg ocean wave

Surface wave. Is the answer

What do snow melting, water freezing to ice, and water boiling into steam have in
common? *
O
They involve a change in state.
They involve a change in temperature.
O
They involve a change in thermal energy.
All of the above are true.​

Answers

Answer:

All of the above.

Explanation:

All of the above is the answer!

Question attached i need answers quick

Answers

1 P4 + 3 O2 —> 1 P4O6

A softball has a (positive/negative) acceleration when it is thrown. A soft ball has a (positive/negative) acceleration when it is caught

Answers

Answer:

A softball has a positive acceleration when it is thrown. A softball has a negative acceleration when it is caught.

Explanation:

HEELLLPPPPP !
Match the property with the correct type of metal.
Soft
(Alkali Metals)
(Alkaline Earth Metals)
Extremely reactive
1 valence electron
2 valence electrons
Harder, more dense

Answers

Answer: Alkali metals

Soft, Extremely reactive, 1 valence electron

Alkaline earth metals

Harder, more dense, 2 valence electrons

Answer:Alkali metals

Soft, Extremely reactive, 1 valence electron

Alkaline earth metals

Harder, more dense, 2 valence electrons

Explanation:

THE PERSON ABOVE ME IS CORRECT IM JUST PUTTING THIS HERE SO YOU KNOW I GOT 100% BECAUSE OF THAT PERSON THANK YOU

Scientists studying a region in southern Florida have noticed drastic changes in the availability of freshwater. Which of the following probably did NOT contribute to these changes? A. Several years of declining rainfall B. Decrease in the population of pond plants C. Building of new homes in the area D. Construction of a dam on the local river

Answers

Answer:

C. Building of new homes in the area

I'm not totally sure but I think this is the best answer.

An acrobat performs with a swing, as shown in the diagram . Which of these most likely happens as the acrobat moves from Point 1 to Point 2?

A. Potential energy decreased and kinetic energy increases.
B. Potential energy increases and kinetic energy decreases.
C. Both potential and kinetic energy increase.
D. Both potential and kinetic energy decrease.

Even on a windy day, most plants can remain upright. Which structure plays the greatest role in providing a plant with this type of support?
A. nucleus
B. mitochondrion
C. cell wall
D. skeleton

Which BEST describes one way igneous rocks form?
A. Sedimentary rocks erode.
B. Sedimentary rocks are compacted.
C. Metamorphic rocks are melted, then cooled.
D. Metamorphic rocks are deposited and cemented.
Pls help! will give brainliest and 75 Points for the correct answers!

Answers

Acrobat part
A
Plants
b
Rocks
C

Answer:

Well, The first question is C. Both potential and kinetic energy increase. Then, The second question is C. Cell wall. And, The last one is B. Sedimentary rocks ate compacted. Good Luck!

The burning of fossil fuels contributes to the addition of greenhouse gases to the atmosphere. These gases trap thermal energy in the Earth’s atmosphere. Which of the following would be the most reasonable changes that could result from an increase in the burning of fossil fuels?
A. The air all over the globe would become dirtier.

B. There would be a global rise in temperatures.

C. Ecosystems would become more diverse.

D. Rates of photosynthesis would decrease.

Answers

Answer:

B. there would be a global rise in temperatures

Hence, global warming

Explanation:

hope this helped! :D

Hey there!

The answer would be B. There would be a global rise in temperatures.

If fossil fuels contribute to the addition of greenhouse gases to the atmosphere and these same gases increase because of burning fossil fuels then there would be a global rise in temperatures. Which is answer B.

Hope this helps!

Adding oil to a car's engine reduces _____, which means less _____ is created by moving parts rubbing together.
A. friction; heat energy
B. heat energy; friction
C. friction; kinetic energy
D. heat energy; potential energy

Answers

Answer:

A.) friction, heat energy

Explanation:

Adding oil to something makes it slick, which in turn reduces friction, and When you reduce friction, you also reduce heat energy.

Answer:

The Answer is A: friction; heat energy

Plz Help! Will give brainliest!!
If the work output of a simple machine is 40 J and the work input is 50 J, the percent efficiency is _____%.
A. 5/4
B. 10
C. 80
D. 90​

Answers

Answer: 80%

Explanation:

Answer:

C.80

Explanation:

if 34.7 g of O2 reacts with iron to form 79.34 g of iron oxide, how much iron was used in the reaction?

A.
19.84 g

B.
44.64 g

C.
104.1 g

D.
114.04 g

Answers

Answer: B. 44.64 g

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Mass of reactants = mass of iron + mass of oxygen = mass of iron + 34.7 g

Mass of product = mass of iron oxide = 79.34 g

As Mass of reactants = Mass of product

mass of iron + 34.7 g = 79.34 g

mass of iron = 44.64 g

Thus 44.64 g of iron was used in the reaction

PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: I believe the answer is B (the second option)

side note: this shows a physics question . . . it is not

What would scorch marks on fabric near bullet wound indicate?

Answers

Answer:

Often loose fibers surrounding a contact hole show scorch marks from the flame discharge of the weapon. Some synthetic fibers may be melted. The blowback of muzzle gases may produce a star shaped tear pattern around the hole.

Explanation:

Someone HELPPPPPPPPP
MARKING BRAINLIST JUST CHECK WORK
(15 points)

Answers

Answer: I'm pretty sure you're right. Believe in yourself!

Explanation:

URGENT!! Please answer
Pillows ___ light
- absorb
- reflect
- refract
- All of the above

Answers

Answer:

All of the above or absorb

Explanation:

I'm pretty sure it is absorb, because it depends what type of pillow for it to reflect.

Answer:

pillows absorb light.

Explanation:reflection would have been more like a glass mirror because the mirror reflects light.

A book with a mass of 1.2 kg sits on a bookshelf. If it has gravitational potential energy of 50 j, how high is the shelf ? The acceleration of gravity is 9.8 m/s 2

Answers

Answer:

B

Explanation:

The shelf will be b) 4.3 m high

What is Gravitational potential energy ?

Gravitational potential energy is the energy possessed or acquired by an object due to a change in its position when it is present in a gravitational field.

given

mass = 1.2 kg

gravitation potential energy = 50J

h = ?

acceleration of gravity is 9.8 m/s 2

gravitation potential energy  = m*g*h

50 J = 1.2 kg * 9.8 m/s^2  * h

h= 4.251 m

h ≈ 4.3 m

The shelf will be b) 4.3 m high

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In a 200 meter sprint there is one curve and one straightaway? true or false

Answers

Answer:

I got true

Explanation:

Not the best explanation, but my dad said it was true.

Which of the following are major problems with fission reactors? maintaining high temperatures disposal of hot water disposing of radioactive waste obtaining fuel

Answers

Answer:

hot water

Explanation:

Answer:

a

Explanation:

What do glands do for the body?

Answers

Answer: A gland is an organ which produces and releases substances that perform a specific function in the body.

Explanation: A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.

Answer:

A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directlyinto the bloodstream.

Explanation:

Using the diagram below, calculate the PE and KE of the ball at the top, middle, and bottom of a drop. SHOW YOUR WORK!!

Write an explanation of what would happen to the ME, PE, and KE of the ball from the top of the drop to the middle of the drop, and then at the bottom.

Answers

Answer:

At the top

K.E = 0

P.E = 981 J

Mechanical energy is conserved

P.E is maximum

K.E = 0

At the middle

K.E = 981 J

P.E = 0

Mechanical energy is conserved

K.E is maximum

P.E = 0

At the bottom

K.E = 0

P.E = 981 J

Mechanical energy is conserved

K.E = 0

P.E is maximum

Explanation:

Given that

M= 5kg

H = 20 m

t = 7 s

According to conservation of energy,

At the top

K.E = 0

P.E = mgh

P.E = 5 × 9.81 × 20

P.E = 981 J

Mechanical energy is conserved

P.E is maximum

K.E = 0

At the middle

K.E = 981 J

P.E = 0

Mechanical energy is conserved

K.E is maximum

P.E = 0

At the bottom

K.E = 0

P.E = 981 J

Mechanical energy is conserved

K.E = 0

P.E is maximum

Given that

M= 5kg

H = 20 m

t = 7 s

At the top

K.E = 0

P.E = mgh

P.E = 5 × 9.81 × 20

P.E = 981 J

Mechanical energy is conserved

P.E is maximum

K.E = 0

At the middle

K.E = 981 J

P.E = 0

Mechanical energy is conserved

K.E is maximum

P.E = 0

At the bottom

K.E = 0

P.E = 981 J

Mechanical energy is conserved

K.E = 0

P.E is maximum

Explanation:

Given that

M= 5kg

H = 20 m

t = 7 s

At the top

K.E = 0

P.E = mgh

P.E = 5 × 9.81 × 20

P.E = 981 J

Mechanical energy is conserved

P.E is maximum

K.E = 0

At the middle

K.E = 981 J

P.E = 0

Mechanical energy is conserved

K.E is maximum

P.E = 0

At the bottom

K.E = 0

P.E = 981 J

Mechanical energy is conserved

K.E = 0

P.E is maximum

Can someone please answer these two science questions. Please don't answer with just anything for the points, I genuinely need the answers. Thanks! :)

Answers

6.

Answer:

45 meters

Explanation:

notice that is you multiply the time with the speed the units cancel to get distance.

therefore

distance=velocity(time)

distance=(3)15

distance =45 meters

7.

Answer:

1. the speed is constant

2. the average speed is .5 m/s

Explanation:

I have attached a graph of the data in excel.

from excel i got the equation of the line to be y=.5x with y being distance and x being time.

the function is a position function so if you take the derivative of it you get the velocity which is .5.

since the derivative is a constant the the speed does not change and the average velocity is the derivative.

10. Which of the following types of drug use is not found in Erich
Goode's list of drug use types?
A) Legal instrumental
B) Legal recreational
C) Legal nonrecreational
D) Illegal recreational

Answers

C) legal nonrecreational

Legal nonrecreational types of drug use is not found in Erich Goode's list of drug use types. Hence, option (c) is correct.

What is Erich Goode's list of drug use types?

American sociologist Erich Goode is an expert in the sociology of deviance. He has authored a lot of books on the subject generally as well as on particular aberrant subjects. At the State University of New York at Stony Brook, he was a professor.

Goode's four drug use patterns

Legal instrumental use: Using over-the-counter and prescription medications to treat or relieve symptoms.Legal recreational use: Using legal substances (such as coffee, alcohol, or tobacco) to induce a particular frame of mindIllegal instrumental use - Using non-prescription medications to carry out an action or achieve a target.Illegal recreational use: Using illicit substances to get high or have fun.

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During which two phases would surfer’s most likely benefit

A. New and Full Moon
B. New moon and Waxing Crescent
C. Full Moon and Waxing Gibbous
D. 1st Quarter and 3rd Quarter

Answers

D. Because there is little tidal change

The phases where surfer’s most likely benefit include D. 1st Quarter and 3rd Quarter.

Surfers will benefit include during the 1st Quarter and 3rd Quarter because there's tidal change. Tidal change is when coastal areas experience two low and high tides.

The benefit of surfing during this period is that it helps jack the waves. Waves transmit energy and this is important to surfers.

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Please help! I'll mark you as branliest!!! :)

Answers

Answer:

pretty sure its C, Radiation because the sun produces radiation

Explanation:

Answer: conduction

Explanation:

The sand is directly transferring heat to the people. They are touching, so it would be an example of conduction.

You are a traffic accident investigator. You have arrived at the scene of an accident. Two cars of equal mass (1,000 kg each) were involved in a rear-end accident at a stop sign. Here is what you know: Car 1 approached the intersection from the top of a 25-meter hill. Car 2 was on a flat stretch of road directly in front of Car 1. At the bottom of the hill, Car 1 was going 20 m/s; Car 2 was going 30 m/s before it stopped at the stop sign. There were no skid marks left by Car 2. The collision occurred at the stop sign, where Car 2 had stopped. After the collision, both cars were moving together in the same direction at 10 m/s before slowly rolling to a stop. You must now push Car 2, using 800 N of force, 10 meters off to the side of the road so no one else gets hurt.
1. What was the potential energy of Car 1 at the top of the hill? (3 points)




2. What was the kinetic energy of each car before braking? (4 points)




3. A. How much energy did Car 1 lose from the top to the bottom of the hill? (3 points)




B. Where do you suppose that energy went? (2 points)




4. How much work was done to bring Car 2 to a stop? (4 points)




5. If Car 2 came to a stop in 15 seconds, how much power (in watts) did it take to stop Car 2 at the stop sign by applying force to the brakes? (3 points)




6. What is the final combined momentum of the cars right after the accident? (6 points)




7. Assuming that there are no other nonconservative forces involved, what impulse was given to each car during the collision? (6 points)
A. Car 1 (3 points)




B. Car 2 (3 points)




8. How much energy did Car 1 lose in the collision? (3 points)




9. How much energy did Car 2 gain in the collision? (3 points)




10. Which of the two laws covered in this unit - Law of Conservation of Momentum or Law of Conservation of Energy - is obeyed in this problem? Explain your reasoning. (5 points)




11. How much work did it take to move Car 2 off to the side of the road? (3 points)




12. If it took you 40 seconds to move Car 2 off the road, how much power did you expend? (3 points)




13. Which simple machine does a car have that helped you move Car 2? Explain. (2 points)

Answers

6. Is 50 m/s that’s the answer

PLEASE HELP The Hertzsprung-Russell diagram shown here suggests that the stars with BOTH the highest temperature AND greatest absolute
magnitude are

A) giants
B)Super giants
C) White dwarfs
D) stars similar to the sun ​

Answers

Answer:

White dwarfs because you look at where the highest temperature is and where is the highest magnitude. Fun fact, the sun will become a white dwarf.

Explanation:

The Hertzsprung-Russell diagram shown here suggests that the stars with Both the highest temperature and  greatest absolute magnitude are:

C) White dwarfs

"Hertzsprung-Russell diagram"

The Hertzsprung-Russell diagram shown here suggests that the stars with Both the highest temperature and  greatest absolute magnitude are White dwarfs.

White dwarf stars (glow lesson D) are the ultimate developmental organize of moo to middle mass stars, and are found within the foot cleared out of the HR chart.

These stars are exceptionally hot but have moo radiances due to their little size.

Thus, the correct answer is C.

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Please have a look at the image

Answers

Answer:

a

Explanation:

a. zero is the answer...

PLEASE HELP In a bag are 7 red, 9 blue, 2 yellow and 4 green marbles. If you draw out a marble at random, what the probability that you will draw a red or blue marble? P(red ∪ blue) Question 7 options: 7/22 11/22 16/22 18/22 Q

Answers

Answer:

16/22

Explanation:

you add red and blue together

PLS I NEED THIS QUICK!!!!WILL GIVE BRAINLY!
you decide to push on a brick wall with all your might for 5 minutes. you push so hard that you begin to sweat. however, the wall does not move. if you end up pushing with a force of 500 newtons, how much work did you do?

Answers

Answer:

2500

Explanation:

At t = 0, a car has a speed of 30.0 m/s. At t=6.00 s, its velocity is 12.0 m/s.
What is its average acceleration during this interval? plz help...​

Answers

Answer: [tex]-3m/s[/tex]

Explanation:

[tex]a=\frac{V_2-V_1}{t}[/tex]

[tex]a=\frac{12-30m}{6s}\\a=-\frac{18m}{6s}\\ a=-3m/s[/tex]

We have a negative acceleration, meaning that the car is slowing down.

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