The trick here is that there are two variables, Diameter of the coil and number of turns in it. So, in order to solve it, we will need two equations in D and N
Since we are making coil, formula for magnetic field will be B = μₒni/D
D = μₒni/B = 4π x 10^(-7) x (N) x (2.2) / (1.6)x10^(-3) = 1.7 x 10^(-3) x N = D
Another equation will be from the wire's length.
Total length = Circumference of one loop x No. of turns = πD x N = 2.2
We will eliminate N because we need D.
N = 2.2 / πD
Substitute in 1st equation.
1.7 x 10^(-3) x 2.2 / π = D^2
<span>
D = 0.034 m = 3.4 cm </span>
Answer:
total force = 4.704 × 
N
Explanation:
given data
height = 5 m
depth = 2 m
thick plastic = 8.00 m
depth = 4.00 m
solution
first we get here force in which aquarium fill with depth 2 m
dF = PdA ......1
F = ∫PdA
F = ∫ϼgy(wdy)
F = ϼgw ∫ y dy
F = ϼgw × 
.................2
F = 
F = 1.568 × N
and
now we get here force for depth 4 m
put here value in equation 2
F = 
F = 6.272 × N
so that here
total force will be
total force = 6.272 × N - 1.568 × N
total force = 4.704 × N
Answer:
gear is part of vehicle.it helps.
<em>-- It takes more force to accelerate a larger mass with the same acceleration </em>
<em>as a smaller mass accelerates from less force. They're directly proportional</em>.
(Newton's second law of motion. Can never be proven. "Just a theory." But
no exceptions have been observed, and it makes predictions that are always
true when we test them, so it's accepted as a law.)
<em>-- But gravity pulls on a larger mass with more force than it pulls on a smaller </em>
<em>mass. Those are directly proportional too.</em>
(Newton's law of universal gravitation. Can never be proven. "Just a theory."
But no exceptions have been observed, and it makes predictions that are always
true when we test them like the orbits of planets and satellites, and the things we
build that need it to work like space probes and TV satellites always work, so it's
accepted as a law.)
So it all balances out.
-- Gravity pulls more mass with more force, and less mass with less force.
-- The larger force pulling the larger mass, and the smaller force pulling the
smaller mass, accelerate both masses at the same rate.
Neat, eh ? Jever wonder who set it all up to work like that ?
