Please answer this question.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Two solutions of the same uv-absorbing molecule were analyzed by uv-vis spectroscopy on the same instrument using 1 cm pathlength cells. use data from the table to calculate by what percentage the concentration of solution b is compared to that of solution a.sample absorbance at 315nm a 0.45 b 0.80

The energy of a photon is equal to (what) times (what) of the photon.