Answer:
0 J
Explanation:
= Work done on the satellite in circular orbit about earth by earth
= Force on gravity on satellite by earth
= displacement of the satellite
= Angle between the force on gravity and displacement = 90
We know that, Work done is given as
Potential energy is energy stored in an object. kinetic energy is energy of motion
Okay so yeah u have to minus then subtract then decide it it’s a method i was taught to do
If a car is travelling 70 m.p.h that means it is travelling 70 miles PER HOUR and since we want to know half an hour we can do
70mph divided by 2 =35m.p half hour so the car is travelling 35miles in half an hour
Weight equals mass times gravitational acceleration=400N, so mass=400/9.8=41kg approx.
