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kari74 [83]
3 years ago
10

What is cosmic microwave background radiation?

Physics
1 answer:
chubhunter [2.5K]3 years ago
6 0
Cosmic, or background, radiation is the small amount of high energy radiation which is mostly left over from the big bang or from supernovas. It is mostly single protons, but also alpha particles and even sometimes heavier elements. It can also refer to the low levels of electromagnetic radiation present all over the universe.
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A linear accelerator uses alternating electric fields to accelerate electrons to close to the speed of light. A small number of
kobusy [5.1K]

Answer:

8.1 x 10^13 electrons passed through the accelerator over 1.8 hours.

Explanation:

The total charge accumulated in 1.8 hours will be:

Total Charge = I x t = (-2.0 nC/s)(1.8 hrs)(3600 s/ 1 hr)

Total Charge = - 12960 nC = - 12.96 x 10^(-6) C

Since, the charge on one electron is e = - 1.6 x 10^(-19) C

Therefore, no. of electrons will be:

No. of electrons = Total Charge/Charge on one electron

No. of electrons = [- 12.96 x 10^(-6) C]/[- 1.6 x 10^(-19) C]

<u>No. of electrons = 8.1 x 10^13 electrons</u>

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3 years ago
a soccer player kicks a ball. According to Newton's third law of motion, the player's foot exerts a force on the ball. The ball
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Answer:

The forces are exerted on different objects so they are not balanced forces.

Explanation:

8 0
3 years ago
It took David 2 seconds to lift a 5 Newton bag of toys from the floor to the top of the top shelf, which is 3 meters tall. How m
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So power is equal to work over time and work is force times distance, you do 5 times 3 and get 15 dividing by 2 gives us 7.5 W answer c
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A one bucket is fill up with sand and another is empty .Which bucket can oscilliate more when release from the distance​
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Answer:

a one bucket with full of sand because of it's mass which plays role in momentum

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2 years ago
Dont know whether its b or c. (cuz for sure it transports energy)
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Sound waves are a type of classical waves and so they transport only energy without transporting matter through the medium.

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