If you know how to SH1FT in sleep how do you do it...

Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.