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yulyashka [42]
2 years ago
7

The source of all magnetic fields is:

Physics
1 answer:
Readme [11.4K]2 years ago
5 0

Answer:

Moving charges

Explanation:

The source of all magnetic fields is moving electric charge: whether it is current in a wire, unpaired electrons in an atomic orbital, convection currents in the earth's liquid nickle /iron core, plasma in the sun, etc. moving electric charge is the source of all magnetic fields.

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The greatest ocean depths on the earth are found in the marianas trench near the philippines, where the depth of the bottom of t
Doss [256]
To find the pressure with a given data for the height, you are asked to get the hydraulic pressure. Hydraulic pressure has the following formula:

P = density*acceleration due to gravity*height

Assume that the density of seawater is the same as that for pure water,density = 1000 kg/m^3.

P = 1000 kg/m3*9.81m/s2*9100m
P = 89271000 Pascals or 89.271 megapascals
3 0
3 years ago
The time T in seconds for a pendulum of length L feet to make one swing is given by Upper T=2\pi \sqrt((L)/(36)). How long is a
Andreyy89

Answer:

3.6ft

Explanation:

Using= 2*π*sqrt(L/32)

To solve for L, first move 2*n over:

T/(2*π) = sqrt(L/32)

Next,eliminate the square root by squaring both sides

(T/(2*π))2 = L/32

or

T2/(4π2) = L/32

Lastly, multiply both sides by 32 to yield:

32T2/(4π2) = L

and simplify:

8T²/π²= L

Hence, L(T) = 8T²/π²

But T = 2.1

Pi= 3.14

8(2.1)²/3.14²

35.28/9.85

= 3.6feet

5 0
3 years ago
Light of wavelength 500 nm is incident on a thin sheet of plastic film (n= 1.50) in air. What is the thinnest the sheet can be s
cricket20 [7]

Answer:

t = 1.6667 10⁻⁷ m

Explanation:

When light falls on a thin film on the surface we have two phenomena

- a change in phase when the beam passes to a medium with a higher index

- on the other hand, in the wavelength, due to the refractive index of the medium

       λ = λ₀ / n

The second ray reflected from the other surface has no phase change

So the path difference between the two rays for destructive interference is

           2t = m   λ₀ / n

           t = m   λ₀ / 2n

Let's calculate

          t = 1  500 10⁻⁹ / 2 1.50

          t = 166.67 10⁻⁹ m

          t = 1.6667 10⁻⁷ m

7 0
3 years ago
Read 2 more answers
I really need help, dose anybody know the answer?
Keith_Richards [23]

Answer: no  

Explanation: you add the right side and if it equals the same as the left side then it is balanced.

8 0
3 years ago
Read 2 more answers
atmospheric pressure is measured in all of the following units except ……… ? A. torr B. pascal C. bar D. newton?
AlexFokin [52]

Answer:

C. Bar

Explanation:

6 0
2 years ago
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