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2 years ago

"Energy is the ability to do work." Is this statement a fact or an opinion? Explain. .

Physics

1 answer:

alexandr1967 [171]2 years ago

4 0

Answer:

<h3>"Energy is the ability to do work" is a fact statement because work is actually a transfer of energy. When work is done to an object, energy is transferred to that object.</h3>

<h3>learn more about energy:</h3>

— https://byjus.com/questions/what-is-the-ability-to-do-work-called/#:~:text=The%20ability%20to%20do%20work%20is%20called%20energy.,is%20transferred%20to%20that%20object.&text=There%20are%202%20types%20of,is%20the%20energy%20of%20motion.

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Remember to identify all your data, write the equation, and show your work.

Paraphin [41]

Answer:

I believe it's 8.09 seconds, but I'm rusty on my physics.

Explanation:

The equation for solving the time it takes for an object to fall is $\sqrt{2d/g}$

So multiply the distance times 2, and you get 642 meters. Then you divide by gravities acceleration constant, 9.8, and you get 65.51. Finally, $\sqrt{65.51}$ , and you get 8.09 seconds.

I pulled the equation off of wikipedia and I'm unsure if it's the correct one, so hopefully this is correct. :/

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3 years ago

Why does the cannon move backward when the cannon ball is shot?

seropon [69]

Answer:

This came to mind

Explanation:

when a cannon fires (in real life or in the movies) have noticed that the cannon recoils, sliding backwards after the explosion. Again, a non-zero net force on the cannon changes its momentum.

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3 years ago

Find the height of the coconut from the ground at the moment the arrow hit it.

Wewaii [24]

Answer:

$v = u + at \\ 0 = 45 \sin(20) - 9.81 \times t \\ t = 1.56s$

7 0

3 years ago

How might you describe the mathematical procedure of finding the displacement when an object travels in two opposite directions?

levacccp [35]

Displacement is a vector quantity. So, you incorporate the vector calculations when you try to determine the resultant vector. This is the shortest path from the starting point to the endpoint. If they are moving on one axis only, you use sign conventions. For motions moving to the left, use the negative sign. If it's moving to the right, then use the positive sign. Now, it the object moves 2 km to the left, and 2 km also to the right, the displacement is zero.

Displacement = 2 km - 2km = 0

Generally, the equation is:
<span>Displacement = Distance of motion to the right - Distance of motion to the left</span>

4 0

4 years ago

A train travels 160 km in 2 h. What is the train’s average speed in km/h?

loris [4]

The train’s average speed is 80km/h

3 0

3 years ago

Read 2 more answers

"Energy is the ability to do work." Is this statement a fact or an opinion? Explain. .​

"Energy is the ability to do work." Is this statement a fact or an opinion? Explain. .