The answer is D, the brain actually stops growing around age 18
Answer:
Explanation:
The magnetic field produced by a current-carrying wire is given by
where
is the vacuum permeability
I is the current
r is the distance from the wire
In this problem we have
r = 1.2 mm = 0.0012 m
So the magnetic field strength is
Apply:
wavelength = speed/frequency
= 350 m/s : 140 Hz = 2.5 m.
125/5 = 25 meters per second
Answer:
True
Explanation:Plates at our planet's surface move because of the intense heat in the Earth's core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.
