There is a water storage container at the top of a tower that is 45m high. If the container has a mass of 2,568kg what is the potential energy of the container

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class

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.