Answer:
B = 4.5 x 10⁻⁷ T = 0.45 μT
Explanation:
From Ampere's law the magnetic field at a certain radius from straight current-carrying wire is given by the following formula:
where,
B = magnetic field = ?
= permeability of free space = 4π x 10⁻⁷ H/m
I = current = 180 A
r = radius = 80 m
Therefore,
<u>B = 4.5 x 10⁻⁷ T = 0.45 μT</u>
Answer:
Or in the other way:
Explanation:
For this case we need to remember that hectare is a measure of area. And we have the following ratios:
We can convert this into
We can convert this into
By dimensional analysis we assume that we can find the ratio in terms of distance like this:
And if we find the ratios in terms of distance we got:
Or in the other way:
Answer:
The force of <u>Gravity</u> is what holds you down to earth.
The <u>length</u> of on a vector is indicated by the length of its arrow.
A measure of the force of gravity on an object is called <u>weight</u>.
Einstein explained gravity as a <u>distortion </u>in space.
If you had the mass of 600 kg on the earth; you would have the mass of <u>226.8 kg</u> on the tiny Mercury.
I hope this helps you! :)
Answer:
D. 5,700 m/s
Explanation:
Sorry for the late reply! I recently just answered this earlier.