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ellisc7044
26.03.2021 •
Chemistry
1. If a 250 kg rock is sitting on the ledge of a cliff 295 meters high, then what is the
potential energy of the rock?
2. A 275 kg rock is rolling faster and faster down the side of a mountain. At the bottom
of the mountain the rock has an instantaneous velocity of 3 m/s, at this moment what is
the kinetic energy of the rock?
3. A race car with a mass of 500 kg on a bridge 45 m above a river, what is the
potential energy of the car?
4. A race car with a mass of 500 kg is driving with an instantaneous velocity of 2.8 m/s,
what is the kinetic energy of the car?
5. Two blocks of wood with a mass of 0.02 kg are hanging 0.9 m above the floor, what
is the potential energy of the blocks of wood?
Mi
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Ответ:
9.03x10^24 is true
Explanation:
why because 500 is not right 8.33 nope 6.02 nope 3,00 nope 9.03x10^24 yes