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choli [55]
3 years ago
7

HELPPPPP PLZZZZZZZZZZZZZZZZZZZ

Physics
1 answer:
Vinil7 [7]3 years ago
4 0
Q3, c-27
All you Gotta do is lookup the rest
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The magnetic field due to a utility wire is 0.10 mT when you are at a distance of 10 meters from it. What current (in Amperes) f
ale4655 [162]

Answer:

I = 5000 A

Explanation:

We will use Ampere's Law to calculate the current:

B = \frac{\mu I}{2\pi r}\\\\

where,

B = Magnetic Field Strength = 0.1 mT = 1 x 10⁻⁴ T

μ = Permeability of Free Space = 4π x 10⁻⁷ N/A²

I = Current = ?

r = radius = 10 m

Therefore,

1\ x\ 10^{-4}\ T = \frac{(4\pi\ x\ 10^{-7}\ N/A^2)(I)}{2\pi(10\ m)}\\\\I = \frac{(1\ x\ 10^{-4}\ T)(2\pi (10\ m))}{4\pi\ x\ 10^{-7}\ N/A^2}

<u>I = 5000 A</u>

4 0
3 years ago
A group of a few thousand stars that are loosely held together by gravity is called a
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Would it be an open cluster 

8 0
4 years ago
in which item is energy stored in the form of gravitational potential energy A)a slice of bread B)a compressed string C)an apple
olchik [2.2K]

For this case, in the next item we have gravitational potential energy:

An apple in a tree.

Suppose we define our reference system at the floor level.

Suppose the apple is at a height h from the floor and has mass m.

The gravitational potential energy of the apple is given by:

U = mgh

Where,

m: apple mass

h: height of the apple with respect to the floor

g: acceleration due to gravity

Answer:

C) an apple on a tree

7 0
4 years ago
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visible light is a range of ____ energy EM waves in the electromagnetic spectrum that the human eye can see
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A range of infrared wavelengths  <span />
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3 years ago
An action force is equal in _____ and opposite in _____ to a reaction force. A. power; direction B. direction; power C. directio
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The correct answer is D. magnitude; direction

We know this thanks to Newton's 3rd law

Hope that helps!!

4 0
3 years ago
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