You will be using paper and aluminum sheet metal as absorbers for the radiation. which material has the greatest areal density (that is, a density measure in mass per unit area, which could be measured in g/cm2 ), and so would present more matter to the passing radiation? which material would have less?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?

What types of radiation make up the electromagnetic spectrum?