Describe the type of energy that is observed when a musician's finger plucks a guitar string. Explain how the energy described in the previous question is transferred to your ear when it reaches you. Does it give your ear kinetic or potential energy?

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?

Ln finding the density of liquid why is the method of using a density bottle more accurate than the one of using a measuring cylinder