Gravitational potential energy i think
Answer:
11:10 will be the time. reflection causes the object to be flipped when you see its image at the mirror
Answer:Same magnitude
Explanation:
When ball is dropped from shoulder height h then velocity at the bottom is given by
if it makes elastic collision then it will acquire the same velocity and riser up to the same height
If m is the mass of ball then impulse imparted is given by
Thus impulse imparted by gravity and Floor will have same magnitude of impulse but direction will be opposite to each other.
Using the equation for period length for a pendulum, you get 32.829 meters.
Gas pressure will also increase then.., if volume is kept constant