Which of the following is the standard (SI) unit of temperature? Kelvin (K)
Celsius (C)
Farrenheit (F)
None of these

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?