Explain the process of mechanical energy exchange during oscillations of a pendulum. As the pendulum falls, is converted into . When the pendulum reaches the bottom of the swing, all of its energy is composed of . When the pendulum rises, is lost and is gained. At the top of the swing, all of its energy is composed of , just as at the start of the swing.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.