Which term describes the amount of heat needed to change 1 kg of a substance from solid to liquid at its melting point? a. specific heat of phase changes b. specific heat capacity c. latent heat of fusion d. latent heat of vaporization

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward