In order for an object to experience a change in velocity, the object must experience which of the following? a) a net force
b) an acceleration
c) both of the above
d) none of the above

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

How do you tell if someone actually cares about you? and just say they do?

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy