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3 years ago

The force that one surface exerts on another when the two rub against each other is called

1 answer:

7 0

1. Friction (Example: when you rub your hands together and you start to feel heat.)

2. Attract each other. (Example: Every object has a gravitational pull of some sort. The larger the object, the stronger the gravitational pull. This is why the sun is able to keep all eight planets in orbit around it.)

3. Hope this helped :)

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If a steel nail is wrapped 8 times with an insulated copper wire and each end of is attached to a 1.5 V battery, we find that it

sergejj [24]

Answer:

Explanation:

i think that it would be 2 because it makes the most sense

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3 years ago

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The material in which a wave travels is called ____.

jeyben [28]

The material in which a wave travels is called a medium. Hope this helps!

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3 years ago

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The range of temperatures on earth is much less than the range in temperatures on mercury, in part due to the presence of oceans

Feliz [49]

False, the real reason is the inconsistency of how far away the sun is

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3 years ago

A boy flies a kite with the string at a 30∘ angle to the horizontal. The tension in the string is 4.5 N. Part A Part complete Ho

zimovet [89]

Answer:

Work done is zero

Explanation:

given data

Angle of kite with horizontal = 30 degree

tension in the string = 4.5 N

WE KNOW THAT

Work = force * distance

horizontal force = $Tcos\theta = 4.5*cos30 = 3.89 N$

DISTANCE = 0 as boy stands still. therefore

work done = 3.89 *0 = 0

3 0

3 years ago

There is said to be a short circuit when

DaniilM [7]

A short circuit is said to have occurred when two nodes of a circuit at different voltages are abnormally connected

There is said to be a short circuit when; <u>One part of a parallel circuit has a very low resistance and almost all the current will flow through this part and very little current will flow through the other part</u>

<u />

The correct option is option B.

Reason:

A circuit has to be closed or the the current path has to be closed for

current to flow. A short circuit occurs when current in a circuit flows

through an abnormal path, such as a bridge in a connection to a load that

creates a parallel path for current flow.

Almost all the current flows through the parallel path due to the low

resistance in the connection (almost zero) and the proximity to the power

source, thereby preventing current from reaching its intended destination

Therefore, the correct option is option B.;

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3 years ago