1 Momentum of a Ball A 13kg ball
with a speed of 26.0 m/s strikes the ground at an angle of 32.0' and rebounds at the same speed and angle.
What is the magnitude of the change in momentum of the ball.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

b. a lightning bug, plug of grass, and a worm

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.