Net force is basically the force an object has when changing direction, so the answer would be D.
Answer: I feel that 3 is the answer
Explanation: Let there be 2 objects, A and B
A is at height of 5m whereas B is at height of 15m
so over here let the gravitational potential energy of A be x
and since B is 3 times higher than A B=3x
Since, earth is considered to be the point where gravitational potenial is 0
So hence forth and object 3 times up will have 3 times the gravitational potential energy of A
No answer is possible until we know the number that belongs after the words "... angular speed of ".
Answer:
A few of the positive particles aimed at a gold foil seemed to bounce back.
Explanation: