How much energy is required to vaporize 2 kg of copper? Use the table below
and this equation: Q = mLvapor

Why does a red shoe appear red in daylight

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Why do oxygen have a strong attractive force for electrons