A 10 kg stone is lifted to a height of 2 meters. What is the potential energy at this position? (Note: PE = mgh; g = 9.8 m/s2, J = Joules)
A. 5 Joules
B. 49 Joules
C. 196 Joules
D. 20 Joules​

A 10 kg stone is lifted to a height of 2 meters. What is the potential energy at this position?

(Note: PE = mgh; g = 9.8 m/s2, J = Joules)

A. 5 Joules

B. 49 Joules

D. 20 Joules

Given values : (Note: PE = mgh; g = 9.8 m/s2, J = Joules)

Solution :

PE = mgh

PE = (10)(9.8)(2)

PE = 196 Joules

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when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.

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