Awater wave travels 36 meters in 15 seconds. what is the speed of the wave?
540 m/s
2.4 m/s
0.42 m/s
1.9 m/s

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

The mini-refrigerator fire was most likely caused by what type of wiring?

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.