Answer:
Explanation:
To give a solution to the exercise, it is necessary to consider the concepts related to magnetic flux and Faraday's law of induction. Faraday's law states that the voltage induced in a closed circuit is directly proportional to the speed with which the magnetic flux that crosses any surface with the circuit as an edge changes over time.
It is represented under the equation,
Where,
is the induced electromotive force
N = Number of loops
= Time
= Magnetic Flux
For definition the change in magnetic flux is:
Where,
B= Magnetic field
Substituting at the first equation we have
Our values are given by,
N = 1 turn
r = 1.6mm
Replacing,
<em>Therefore the magnitud of the induced emf around a horizontal circle of tissue is </em>
Answer:
Approximately .
Assumption: air resistance is negligible.
Explanation:
Make sure all the values are in standard units.
.
The bounce here is an inelastic collision between the ball and the surface. Some of the kinetic energy (KE) was lost. The exact value of energy loss would be equal to .
Before the bounce, all the kinetic energy of the ball would come from the drop from . That is:
.
After the bounce, the ball travels to a height of . All the potential energy gained in that process should come from the kinetic energy when the ball bounces back from the ground.
.
Hence, the size of energy loss due to the bounce would be equal to
.
<span>The actual time to travel would be 200 miles / 60 miles/hour = 3.33333 hours or 3 hours and 20 minutes. Since the van driver has been directed to allow an extra hour, the amount of time allowed should be 4 hours and 20 minutes for the total duration of the trip to Dallas.</span>