Atrain travels 77 kilometers in 1 hour, and the 66 kilometers in 1 hour. what is the average speed?

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

What is the rate of change in a objects position?

What is the temperature in degrees celsius of a substance with a tempature of 49k