Calculate the kinetic energy of a 100.0-kg meteor approaching the earth at a speed of 10.0 km/s.

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational