3. A cart at rest at the top of a roller coaster has 1000 J of

Physics

2 answers:

vovikov84 [41]3 years ago

5 0

Answer:

600J

Explanation:

Assuming no energy is lost and perfect transfers.

On the top of the first hill, $E_{k}+E_{p}=1000$ - however there is no Kinetic Energy so - $E_k = 0$

On the second hill, the total amount of energy is still the same (1000) - this time we have a smaller amount of potential energy. We can rearrange to get $E_k=1000-400$

wariber [46]3 years ago

4 0

Answer:

Explanation:

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Answer:

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The young tree was bent and has been brought into a vertical position by the three guy cables. If tension at AB = 0, AC = 10 lb,

KATRIN_1 [288]

Answer:

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Explanation:

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