The pressure of a liquid is given by P = pgh. Calculate the pressure (in SI unit) if the density of water, p is 1 g cm-, the acceleration due to gravity, g is 10 m s?, and the
height of water, h is 50 cm.

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

What is friction? how does it affect the motion of an object?