The shear modulus of steel is 8.1 × 1010 n/m2. a steel nail of radius 7.5 × 10–4 m projects 0.040 m horizontally outward from a wall. a man hangs a wet raincoat of weight 28.5 n from the end of the nail. assuming the wall holds its end of the nail, what is the vertical deflection of the other end of the nail?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?

When solid surfaces slide over each other the kind of friction that occurs is called friction