a spring with a spring constant of 65 n/m is displaced -94cm. what is the magnitude of the force exerted by the spring

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

If steel is more dense that lake water, why can a boat float

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.