Abowling ball of mass 8 kg hits a wall going 5 m/s and rebounds at a speed of 4 m/s. what was the impulse applied to the bowling ball?

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.