Consider the position vs. time graph below for a woman's movement in a hallway. What is the woman's velocity from 4 to 5 s? 4 m/s
6 m/s
8 m/s
10 m/s

The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up