Answer:
Energy is transferred from mechanical energy to thermal energy and then back to mechanical energy ( D )
Explanation:
when conducting plate swings through a magnetic field, energy is transferred from mechanical energy to thermal energy and then back to mechanical energy and this is due to the induction of eddy currents during the process of that the conducting plate swings through the magnetic field.
An eddy current is induced in conductor when the magnetic field in which the conductor is located varies.
Answer:
the kinetic energy of body B is twice the kinetic energy of body A
Explanation:
The kinetic energy of a body is given by
K = ½ m v²
If two objects leave the same point, suppose that at the same height when they reach the ground they have the same velocity.
Therefore if the mass of body b is twice the mass of body A

= ½ (2
) v²
K_{b} = 2 (½ m_{a} v²)
K_{b} = 2 K_{a}
therefore the kinetic energy of body B is twice the kinetic energy of body A
Answer: The angle between the wire segment and the magnetic field 66.42°
Explanation:
Please see the attachment below
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