Find the momentum of a 25 kg remote
controlled car moving 4.0 m/s (Type your
answer below, don't forget your significant
figures and units!)

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?