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2 years ago

13

The negative will be to the positive. Therefore, they are pulling each other, and creating and electrical

force.

1 answer:

Ierofanga [76]2 years ago

3 0

Answer:

attracted... (not sure) close to...

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Where does cosmic microwave background radiation come from? A. It is radiation produced by pulsars and black holes that warps ou

LuckyWell [14K]

Answer:

C. It is radiation leftover from the Big Bang

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3 years ago

A certain superconducting magnet in the form of a solenoid of length 0.56 m can generate a magnetic field of 6.5 T in its core w

Gnom [1K]

Answer:

The value is $N =36203 \ turns$

Explanation:

From the question we are told that

The length of the solenoid is $l = 0.56 \ m$

The magnetic field is $B = 6.5 \ T$

The current is $I = 80 \ A$

The desired temperature is $T = 4.2 \ K$

Generally the magnetic field is mathematically represented as

$B = \frac{\mu_o * N * I }{L }$

=> $N = \frac{B * L }{\mu_o * I }$

Here $\mu_o$ is the permeability of free space with value

$\mu_o = 4\pi * 10^{-7} N/A^2$

So

$N = \frac{6.5 * 0.56 }{ 4\pi * 10^{-7} * 80 }$

=> $N =36203 \ turns$

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2 years ago

In order to identify them, animal fossils and other fossils nearby can be: A. compared B. piled C. seen

tigry1 [53]

Answer:

A.compared

Explanation:

Fossils help figure out the time that organisms lived. If you know one of the fossils, it can be used as a reference for others around.

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3 years ago

13.<br>14. Why does a person feel weightlessness during freefall?

Sveta_85 [38]

Answer:

When in free fall, the only force acting upon your body is the force of gravity - a non-contact force. Since the force of gravity cannot be felt without any other opposing forces, you would have no sensation of it. You would feel weightless when in a state of free fall.

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3 years ago

A box slides to the right along a horizontal surface which is true about the friction force

mixer [17]

Answer:

It is a force in the direction of the motion that allows the box to move

Explanation:

7 0

2 years ago