While tuning his violin the violinist compares the pitch his string produces to the pitch produced by an electronic tuner if the tuner produces a note with a frequency of 440 hz and the violine plays a note with a frequency of 443 hz what is the beat frequency produced?

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final