Answer:
I would say contact forces
Explanation:
This questions is kind of missing some info but I do know that contact forces need to be either pushed or pulled for a force to happen.
Hope this helped
Answer:
C, 4.5 billion years ago, i think
Explanation:
Answer:
<em>20cm</em>
Explanation:
<em>A coil wire comprises of 5 turns, it has a current of 2mA </em>
<em>A net magnetic field at the center of B is equal to Mu over 40 end fractions times T</em>
<em>The radius of a coil of wire with N turns is r = 0.28 m. A clockwise current of Icoil = 1.0 A flows in the coil,</em>
<em>Therefore 40/2mA = 20</em>
