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statuscvo [17]
3 years ago
6

Arrange the following kinds of electromagnetic radiation in order of increasing wavelength: infrared, green light, red light, ra

dio waves, X rays, ultraviolet light. Rank from shortest to longest. To rank items as equivalent, overlap them.
Physics
1 answer:
kaheart [24]3 years ago
5 0

Answer:

X rays, ultraviolet light, green light, red light, infrared radio waves

Explanation:

The electromagnetic spectrum can be thought of as being arranged either in decreasing frequency or increasing wavelength. The full spectrum is as follows, from the shortest wavelength to the longest:

Gamma rays, X rays, ultraviolet light, violet light, indigo light, blue light, green light, yellow light, orange light, red light, infrared,  radio waves, radar waves, microwaves, television waves, radio waves.

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A small block with mass 0.0400 kg slides in a vertical circle of radius 0.600 m on the inside of a circular track. During one of
Maurinko [17]

Answer:

Explanation:

Given that

The mass of the body is 0.04kg

M=0.04kg

The radius of the paths is 0.6m

r=0.6m

The normal force exerted at A is 3.9N

Fa=3.9N

The normal force exerted at B is 0.69N

Fb=0.69N

Then work done by friction from point A to B will be the change in K.E

W=∆K.E+P.E

So we need to know the velocity at both point A and B

Then since the centripetal force is given as

Ft=mv²/r

Then,

For point A

Fa=mv²/r

3.9=0.04v²/0.6

3.9=0.0667v²

v²=3.9/0.0667

v²=58.5

v=√58.5

v=7.65m/s

Va=7.65m/s

Now at point B

Fb=mv²/r

0.69=0.04v²/0.6

0.69=0.0667v²

v²=0.69/0.0667

v²=10.35

v=√10.35

v=3.22m/s

Vb=3.22m/s

Then, the work done is

W=∆K.E+P.E

P.E is given as mgh

The height will be 2R =1.2m

P.E=mgh

P.E=0.04×9.81×1.2

P.E=0.471J

Final kinetic energy at B minus initial kinetic energy at A

W=K.Eb-K.Ea

K.E is given as 1/2mv²

W=1/2m(Vb²-Va²) +P.E

W=0.5×0.04(3.22²-7.65²) +0.471

W=0.5×0.04×(-48.1541) +0.471

W=-0.96+0.471

W=-0.49J

work was done on the block by friction during the motion of the block from point A to point B is 0.49J.

Friction opposes motions and that is why the work done is negative

3 0
3 years ago
If a person traveled 475 miles at a rate of 74 miles per hour. how long did they travel for?
Gennadij [26K]
They traveled for six hours and forty two minutes
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3 years ago
You rub a balloon on your head and it becomes negatively charged. The balloon will be MOST attracted to A) a piece of metal. B)
NikAS [45]
I believe the correct answer is B.<span>positively charged hair.</span>
8 0
3 years ago
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The acceleration due to gravity on the earths surface is?​
Gennadij [26K]

Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.

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2 years ago
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Add to
TEA [102]

Answer:

1) x_total = 2.7 km=2700 m, 2)   t_total = 1926 s,  3)   v_avg = 1.40 m / s

Explanation:

1) To solve this uniform velocity problem, we must find the displacement of each part and add them.

        x_total = x₁ + x₂

        x_total = 0.7 + 2.0

        x_total = 2.7 km

2) how long does it take for this tour

         

truck

        v = x₁ / t₁

        t₁ = x₁ / v

        t₁ = 0.7 / 20

        t₁ = 0.035 h

Let's reduce the time to the SI system

         t₁ = 0.035 h (3600 s / 1h) = 126 s

when he is walking

         t₂ = 30 min (60 s / 1min) = 1800 s

the total time is

        t_total = t₁ + t₂

        t_total = 126 + 1800

        t_total = 1926 s

3) the average velocity is defined as the displacement in the inerval between time

        v_avg = x_total / t_total

         v_avg = 2700/1926

         v_avg = 1.40 m / s

8 0
3 years ago
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