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maxonik [38]
4 years ago
11

Blank objects is a major cause of back injuries in the workplace

Physics
1 answer:
Gnoma [55]4 years ago
8 0

Lifting is the correct answer

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What effect does increased blood flow have on the body when performing exercises? A. delivers more sugar to organs B. delivers m
denis23 [38]
The answer is C!
Good luck!
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which item requires the least energy to increase its temperature? the items are the towel, the sand, or the water
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I believe it might be sand
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Currents in dc transmission lines can be 100 A or more. Some people have expressed concern that the electromagnetic fields (EMFs
S_A_V [24]

Explanation:

This problem can be solved by using the equation

B = (μ0*I)/(2π*r)        ( 1 )

where μ0 is the magnetic permeability, I is the current in the wire and  r is the distance to the wire, where the magnetic field B is calculated. The equation (1) says that a current in a wire produce a magnetic field in a distance r from the wire.

Part A

Taking into account that μ0 = 4\pi *10^{-7} \frac{N}{A^{2}}

By replacing in the equation ( 1 ) we have:

B = \frac{4\pi *10^{-7}N/A^{2}(180A)}{2\pi (8m)} = 4.5*10^{-6} T

Part B

In tis case is only necessary to calculate B/Be (Be is the magnetic field of the earth), but taking into account that tha magnetic field of the earth must be in teslas.

1 gauss = 10^(-4) T

0.50 gauss = 0.50*(10^(-4)) T = 5*10^(-5) T

Hence, the proportion between B and Be:

\frac{B}{B_{e}} = \frac{4.5*10^{-6}}{5*10^{-5}} = 0.09 = 9%

Thus, it is only 9% of the magnetic field of the earth.

8 0
4 years ago
Read 2 more answers
How has the public responded to the use of Uzbek forced labor in the production of clothes?
sweet-ann [11.9K]

Answer:

A.

Explanation:

8 0
3 years ago
1<br> AI<br> A3<br> If A1 = 27A and A3 = 1.9A, what would A2 read?
Gnoma [55]

Answer:

0.8A

Explanation:

because im very intelligent and beautiful so the answer is correct and its 0.8A

7 0
3 years ago
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