A runner Completes 6 laps around a
Circular track in 420s. Round any decimals to
2 spots.

a) What is the period?
b) What is the frequency?

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

The pressure proportional to the area a- inversely b- directly c- increase d-decrease