Aradio wave transmits 36.8 w/m2 of power per unit area. a flat surface of area a is perpendicular to the direction of propagation of the wave. assuming the surface is a perfect absorber, calculate the radiation pressure on it.

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings