Why does an astronaut weigh less on the moon than on earth?
a. the astronaut has less mass on the moon.
b. the astronaut is farther from earthâs center when he or she is on the moon.
c. the gravitational field strength is less on the moonâs surface than on earthâs surface.
d. the astronaut is continually in free fall because the moon orbits earth?

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?

Why does a collision with an airbag cause less damage than a collision with a steering wheel