An indestructible bullet 2.27 cm long is fired
straight through a board that is 8 cm thick.
the bullet strikes the board with a speed of
401 m/s and emerges with a speed of 265 m/s.
what is the average acceleration of the bullet through the board?
answer in units of m/s
2

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you