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bogdanovich [222]
3 years ago
5

I need this asap pls ​

Physics
1 answer:
user100 [1]3 years ago
3 0

Answer:

2 i think

Explanation:

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Find the intensity of electromagnetic radiation at the surface of the sun (radius r=R=6.96×105kmr=R=6.96×105km). Ignore any scat
alisha [4.7K]

Answer:

I = 4.46*10^{16}W/m^2.

Explanation:

Intensity I of the electromagnetic radiation is given by

I = \dfrac{P}{4\pi r^2},

where r is the distance from the EM source (the center of the sun, in our case), and P is the power output of the sun and it has the value

P = 3.9 *10^{26}W.

Since the radius of the sun in meters is r = 6.96*10^8km, the intensity I of the electromagnetic radiation at the surface of the sun is

I = \dfrac{3.9*10^{26}W}{4\pi (6.96*10^8m)^2}\\\\\boxed{ I = 4.46*10^{16}W/m^2}

The intensity of the electromagnetic radiation at the surface of the sun is I = 4.46*10^{16}W/m^2.

7 0
3 years ago
Which of the following describes what all electromagnetic waves have in common?
Solnce55 [7]
They all move through empty space at the speed of light
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3 years ago
Lee pushes horizontally with a force of 75 n on a 36 kg mass for 10 m across a floor. calculate the amount of work lee did. answ
svlad2 [7]
To find work, you use the equation: W = Force X Distance X Cos (0 degrees)
Following the Law of Conservation of Energy, energy cannot be destroyed nor created.

So you would do 75 N x 10m x Cos (0 degrees)= 750 J
8 0
3 years ago
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Temperature which is solid becomes a liquid
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Answer:

The answer would be melting point.

Explanation:

Hope this helps. Can you please mark me brainliest

5 0
3 years ago
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How much work is being done if a force of 75 Newtons is used to push a box a distance of 100 meters?
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Work= Force x Distance
Answer: 7500 Joules
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4 years ago
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