What is the distance between two consecutive points in a phase on a wave called?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

True or false graphs must include scales that increase by the same amount

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: