The change in the gravitational potential energy is represented by the equation
u = ΔPE = Δmgh
since the mass of the system will remain constant and the acceleration due to gravity will also remain constant, the equation will become
u = mg Δh
The two competing forces that keeps earth orbiting the sun is gravity and inertia
For the third one on the top you can put to get solar panels on your roof
Answer:
18s
Explanation:
Given parameters:
Work done by hamster = 180J
Power of hamster = 10W
Uknown:
Time taken for the hamster to generate the work = ?
Solution:
Power can be defined as the rate at which work is being done by a body. It is related to both work done and time by the expression below;
Power =
Time taken =
Time taken = = 18s