To increase it's size
Waxing is the opposite of waning, which is to decrease.
Answer:
tell ke first ,what will happen in zero gravity?
Answer:
The answer is the kinetic energy of sled B after it crash is 6439j.
The correct answer would be True!
When an elevator is accelerating downward, the normal force is equal to mg-ma (hence you feel a little lighter when accelerating downwards)
Therefore, the upward force of the elevator floor on the person must be less than 750N