A 0.500-kg particle has a speed of 1.60 m/s at point circled A and kinetic energy of 7.00 J at point circled B. (a) What is its kinetic energy at circled A

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.

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