In which situation is no work considered to be done by a force?
oa when the angle between the force and displacement is 180°
o b. when the angle between the force and displacement is 90°
oc when the angle between the force and displacement is 45°
od. when the angle between the force and displacement is 0°

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

What happens when you slowly pulled the carboard?

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.