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Ivan
3 years ago
14

The diagram shows a simple electric generator that Keisha is studying.

Physics
2 answers:
natima [27]3 years ago
8 0
In this kind of generators, Keisha has a wire that will rotate inside a magnetic field.
Since the electrical field generated depends on the inclination of the wire with respect to magnetic field lines, and this inclination varies with time, Keisha will get a varying electrical field, therefore also a varying electric current: the value will be zero when the wire is parallel to the magnetic field lines, the maximum positive value will occur when the wire is perpendicular to the magnetic field lines after one fourth of rotation, then again zero when the wire is parallel and the maximum negative value will occur when the wire is perpendicular to the magnetic field lines, but upside down, <span>after three fourths of rotation.</span>

Therefore, we expect the needle to move back and forth between a large positive value to a large negative value.  
77julia77 [94]3 years ago
5 0
<u>Answer</u>

<span>C. It will move back and forth between a large positive and a large negative value.</span>


<u>Explanation</u>
The generator in the diagram produces an alternating current. This means the direction of the current every time the generator rotates. The current produced is large. 
The needle will move back and forth in every rotation. 

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Jared is reading an article about the heavy rains that have fallen recently in his town. But he can’t separate the facts from th
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<span>FACTS:
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It’s that time of year again when the days are wet and cool.
         The rainy season is the best season.
Rain makes up part of Earth’s water cycle.
Water evaporates from streams, lakes, and oceans, then condensation
   and precipitation occur in the form of rain.
         Precipitation in the form of rain is better than snow.
         Snow this time of year makes people gloomy.
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It helps their crops grow.

</span>OPINIONS:
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<span>|         It’s that time of year again when the days are wet and cool.
The rainy season is the best season.
         Rain makes up part of Earth’s water cycle.
         Water evaporates from streams, lakes, and oceans, then condensation
            and precipitation occur in the form of rain.
Precipitation in the form of rain is better than snow.
Snow this time of year makes people gloomy.
         Rain is a great boon to local farmers.
         It helps their crops grow.</span>

6 0
3 years ago
Read 2 more answers
2. What process does water redeposit into a lake in the form of rain?
weqwewe [10]

The process that water redeposit into a lake in the form of rain is precipitation.

<h3>What is water runoffs?</h3>

Water runoff occurs when there is more water than land can absorb.

The water flows across the surface of the land and into nearby creeks, streams, or lakes.

Runoff can come from both natural processes and human activity.

When rain falls to the earth from clouds and runs downhill into rivers and lakes.

During evaporation, the water turns from liquid into gas, and moves from oceans and lakes into the atmosphere where it forms clouds.

<h3>What is precipitation?</h3>

Precipitation is any liquid (rain) or frozen water that forms in the atmosphere and falls back to the Earth, for example it could fall on land or into lakes and rivers.

Thus,  the process that water redeposit into a lake in the form of rain is precipitation.

Learn more about precipitation here: brainly.com/question/1783904

#SPJ1

5 0
2 years ago
Why is electrostatic force able to act at a distance ​
mote1985 [20]
In Electrostatics the electrical force between Two charged objects is inversely Related to the distance of separation between the two objects .
7 0
3 years ago
A car on a roller coaster loaded with passengers has a mass of 2.0 x 10^3 kg. At the lowest point of the the track, the radius o
mart [117]

Answer:

here is my work

Explanation:

6 0
3 years ago
A man rides up in an elevator at 12 m. He gains 6500 J of gravitational potential energy. what is the man's mass?
iren2701 [21]

Answer:

We know that potential energy of a body;

= mass(m)× gravitational acceleration(g) × height(h)

Lets find out the mass of the body

P.E. = mgh

=> 6500J = mass × 9.8m/s^2 × 12m

=>6500J = mass × ( 9.8 × 12 ) × ( m/s^2 × m)

=> 6500 Nm = m × 117.6 × m^2 / s^2

=> 6500/117.6 Ns^2/m = mass [°.° Ns^2/m = kg]

=> 55.272 Kg = mass

Therefore the mass of the body = 55.272 kg ~ <em>6</em><em>0</em><em> </em><em>k</em><em>g</em><em> </em>(Ans)

Hope it helps you

6 0
3 years ago
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