Define force in your own words.

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

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?