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topjm [15]
3 years ago
7

Electromagnetic induction is the production of a voltage across a conductor when it is exposed to a varying magnetic field. This

process is essential in which of these devices? A) A diode. B) A capacitor. C) A transformer D) A potentiometer.
Physics
2 answers:
Mice21 [21]3 years ago
5 0

Answer: C. a transformer.

For USATestprep.

Studentka2010 [4]3 years ago
4 0

Answer:

A transformer.

Explanation:

A transformer is a device that involves magnetically coupled coils isolated from one to another but wound on the same magnetic core. A variable current in time in a coil establishes in the magnetic core a flux also variable in time, this flow is linked to the other coil and induces in it an electromotive force (voltage) variable in time.

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Which term names traces or remains of organisms that lived in the past? A. adaptations B. mutations C. traits D. fossils
grin007 [14]
The answer to this question is choice letter "D"
7 0
4 years ago
Read 2 more answers
The period T of a pendulum of length L is measured to determine g at the surface of Earth. The equation used is T=2π√L/g. The ma
saul85 [17]

Answer:

C: Variation in the value of g as the pendulum bob moves along its arc.

Explanation:

The formula for period of a simple pendulum is given by;

T = 2π√(L/g)

Where;

L is length

g is acceleration due to gravity

Now, from this period equation, it is clear that the only thing that can affect the period of a simple pendulum are changes to its length and acceleration due to gravity.

Looking at the options, the only one that talks about either the length or gravity as being potential causes of the error is option C

4 0
3 years ago
a quarterback throws a football with angle of elevation 40degrees and speed 60ft/s. Find the horizontal and vertical components
pshichka [43]
<span>
the horizontal velocity would be equal to
Vh = sin (40) /60
= 0.74 * 60
= 44
</span>
the Vertical velocity would be equal to
<span>Vv = cos(40) * 60
=40</span>
4 0
3 years ago
While the Earth is revolving around the sun, less direct sunlight is reaching the Northern Hemisphere than the Southern Hemisphe
Kisachek [45]

Answer:

During the northern hemisphere winter solstice, the Sun's incoming rays are perpendicular to the Tropic of Capricorn at 23.5 degrees south latitude.

Explanation:

Spring begins

4 0
3 years ago
Which has the greater momentum when moving?
Basile [38]
I assume there are choices to this question that you forgot to include. No matter, I could just lay out the concept so that you can understand the gist.

The best way to approach this is to know the definition of momentum. In physics, momentum is always defined in terms of equation. For momentum, it is the product of the mass and velocity. Therefore, any increase of these two parameters would promote greater momentum. The greater the mass paired with the faster the velocity, the greater the momentum.
7 0
3 years ago
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