Iwill mark brainiest!
if your body is wet what is the lowest electrical voltage can be fatal?

a. 100 volts
b. 15 volts
c. 5 volts
d. 10 volts

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.

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?