Answer: 2400A
Explanation:
magnetic field of a solenoid is given by
B=μ0NIL
and the current is
I=BLμ0N.
N is the length of the wire, divided by the diameter of the wire -
that's how many times you can wind the coils together for a given length.
Therefore,,
there are
N= 1.8/0.002 = 900 turns of the wire. Thus,
I=BLμ0N=1.5×1.84π×10-7×900= 2400 A.
Answer:
Fluid pressure from gravity is the weight of the fluid above divided by the area it is pushing on. Fluid pressure applies in all directions. Internal pressure of an object equals the external fluid pressure, otherwise the object could be crushed. Wind and heating can also create pressure.
Explanation:
A baseball would hit the bat harder. This is because the baseball is a lot heavier and more dense than the plastic ball. The keyword that you're looking for is density. The baseball is dense.
The water creates less friction between your foot and the ground
