Answer:
B
Explanation:
When rubbing two sticks together it causes friction witch at fast enough friction rate produces heat energy
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>
You've failed because you failing becomes a statement rather than it becoming fact or what actually happened.
The particles which are in the field of forces means in the field line of forces they experience electric force.
Explanation:
D. Soil is composed of weathered parent material where as crushed rock is not.