Answer:
Approximately 18 volts when the magnetic field strength increases from to at a constant rate.
Explanation:
By the Faraday's Law of Induction, the EMF that a changing magnetic flux induces in a coil is:
,
where
- is the number of turns in the coil, and
- is the rate of change in magnetic flux through this coil.
However, for a coil the magnetic flux is equal to
,
where
- is the magnetic field strength at the coil, and
- is the area of the coil perpendicular to the magnetic field.
For this coil, the magnetic field is perpendicular to coil, so and . The area of this circular coil is equal to .
doesn't change, so the rate of change in the magnetic flux through the coil depends only on the rate of change in the magnetic field strength . The size of the magnetic field at the instant that will not matter as long as the rate of change in is constant.
.
As a result,
.
Some people love burnt toast. I personally do not, but I know many people who do. Typically that setting is for stuff that takes longer to get crispy.
Answer:
The mass of the asteroids is 0.000334896182184 times the mass of the Earth.
39929.4542466 m
Explanation:
Total mass of the asteroids
= Mass of Earth =
The ratio is
The mass of the asteroids is 0.000334896182184 times the mass of the Earth.
Volume is given by
The diameter is 39929.4542466 m
Answer: 20 meters
Explanation:
This situation is related to vertical motion, especifically an object in free fall, and the parametric equation that describes this motion is:
Where:
is the stone's final height
is the stone's initial height
is the initial speed of the stone
is the time the stone is falling
is the acceleration due gravity
Isolating according to the given information:
Finally:
This is the distance the stone fell
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