Which of the following statements are true? A. The symbol used for the period of a wave is p.
B. The unit for frequency is the hertz.
C. The frequency of a wave is equal to 1 divided by the period of the
wave.
D. To find the period of a wave, multiply the frequency by 10.

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

c) up is the direction the magnetic force is acting on the charge.

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.