2. An astronaut is piloting her spacecraft toward the International Space Station. To stop the spacecraft, she fires
the retro-rockets, which cause the spacecraft to slow down
from 20.0 m/s [E] to 0.0 m/s in 12 s. 67
(a) What is the acceleration of the spacecraft?
(b) What is the displacement of the spacecraft when it
comes to rest?

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.