The prongs on the plug and the wire inside<span> the </span>cord<span> are </span>metal<span> but they are </span>surrounded<span> by plastic or rubber insulation so you do not get shocked when you touch the </span>cord
frequency=4Hz
wavelength=5m
amplitude=1/2×2=1m
period=1/frequency
1/4=0.25seconds.
velocity=wavelength×frequency
=5×4
=20m/s
Then the time interval during which the rocket engine provides upward acceleration in 2.1s hope this helps have more photos but can’t put them more in brainliest is appreciated
Answer:
the answer for the question is C
The charge going to the clothes iron needs to be grounded so the iron does not make any shock
