(none of the options is correct... see below)
Explanation:
Recall that frequency, wavelength and speed are related by
Velocity (i.e speed) = frequency x wavelength
in our case
Speed = 270 Hz x 60m = 16,200 m/s
False and Kinda true.
Explanation:If ya don't exercise your body will become weak and will die. same goes with old ppl. unless you are too old to exercise you can still take a walk. unless you have a wheel chair or no legs or a leg condition.