When 1kg of a substance changes from solid to liquid at its melting point, it must absorbed an amount of heat equal to which of the following? A. specific heat of phase changes
B. specific heat capacity
C. latent heat of fusion
D. latent heat of vaporization

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?

Select the correct lewis structure for fluorine which is group 7a element?