A6.0-kg block slides from point a down a frictionless curve to point b. after the block passes point b, a friction force opposes the motion of the block so that it comes to a stop 2.5 m from b. calculate the coefficient of kinetic friction between the block and the surface after position b.

3.5kg

Explanation:

if you subtract 6-2.5 it equals 3.5

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

so easy. just google the electromagnetic waves and it’ll pop up.