True or false?
lemonade crystals added to hot water will dissolve faster than when added to cold water. a. true, b.false

If forces acting on an object are unbalanced. true or false

Which sections of the heating curve illustrate this process?

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.