Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
<span>Rising or falling, it does not change.</span>
Answer:
law of conservation of energy is that a perpetual motion machine of the first kind cannot exist, that is to say, no system without an external energy supply can deliver an unlimited amount of energy to its surroundings
Explanation:
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Mark me as Brainliest plz!
Answer:

Explanation:
Using the conservation of energy we have:

Let's solve it for v:

So the speed at the lowest point is 
Now, using the conservation of momentum we have:

Therefore the speed of the block after the collision is 
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Answer:
sun, jupiter, earth, moon
Explanation:
how big they are