Amarble is rolling at a velocity of 1.5 m/so with a momentum of a 0.10 kg m/so what is the mass?

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29×10 to the power of −11 m, the expected position of the electron in the atom.

How long will it take a car traveling of a constant speed of 45m/s to cover the distance of a 2.5km?