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MatroZZZ [7]
3 years ago
11

What is the order of magnitude of the speed of light

Physics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

The order of magnitude of speed of light in S.i. units is 8. Therefore c=3×10^8 meter / second.

Explanation:

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A pendulum is made up of a small sphere of mass 0.500 kg attached to a string of length 0.950 m. The sphere is swinging back and
Semenov [28]

Answer:

W = 0.842 J

Explanation:

To solve this exercise we can use the relationship between work and kinetic energy

         W = ΔK

In this case the kinetic energy at point A is zero since the system is stopped

         W = K_f                (1)

now let's use conservation of energy

starting point. Highest point A

          Em₀ = U = m g h

Final point. Lowest point B

         Em_f = K = ½ m v²

energy is conserved

         Em₀ = Em_f

         mg h = K

to find the height let's use trigonometry

at point A

            cos 35 = x / L

            x = L cos 35

so at the height is

            h = L - L cos 35

            h = L (1-cos 35)

we substitute

           K = m g L (1 -cos 35)

we substitute in equation 1

           W = m g L (1 -cos 35)

let's calculate

           W = 0.500 9.8 0.950 (1 - cos 35)

           W = 0.842 J

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Two stars orbit each other in a _ solar system
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Why the reflected rays for a rough surface do not result in the formation of an image.
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Answer:

this is because the light rays get reflected irregularly

Explanation:

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1<span>Define the equation for the force of gravity that attracts an object, <span>Fgrav = (Gm1m2)/d2</span>
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