A: Human Body
C is wrong because they don’t have the tools to test it on another planet
Answer:
if you're converting then the answer is 0.00895
Explanation:
895 centimetres converted into kilometres= 0.00895
Answer:
6370 J
Explanation:
By the law of energy conservation, the work done by the student would be the change in potential enegy from 1st floor to 3rd floor, or a change of 13 m

where m = 50kg is the mass of the student, g = 9.8 m/s2 is the gravitational constant and h = 13 m is the height difference

Answer: it depends on the mass of the pendulum or on the size of the arc through which it swings.
Explanation: