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NARA [144]
3 years ago
5

What will be the kinetic energy change of the ram of a pile driver when it suddenly undergoes a 10 kJ decrease in potential ener

gy?
Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
4 0

Answer:

K.E. increase by 10 KJ.

Explanation:

Total mechanical energy of a system is always constant which is the sum of kinetic and potential energies of the system. So, when the ram of a pile driver when it suddenly undergoes a 10 kJ decrease in potential energy, its kinetic energy must have increase by 10 KJ. So, as to make their sum constant again.

Mechanical energy = Kinetic energy + potential energy = constant

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what is the molarity of a solution prepared dissolving 317 g of CaCl2 into enough water to make 2.50 L of solution?
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