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alex41 [277]
3 years ago
7

A quasar is a distant celestial body in space. Investigators use a special telescope and determine that a certain quasar was giv

ing off waves with a frequency of 1.41 X 109 Hz. An electromagnetic spectrum is shown above. The investigators were most likely using a telescope that detects which type of wave?
Physics
1 answer:
iris [78.8K]3 years ago
6 0

Answer:

equipment for the measurement of microwave L bands with a range between 1 GHz and 2 GHz.

Explanation:

The electromagnetic spectrum can be calculated with the relationship between the speed of light, its wavelength and its frequency.

         c = λ f

For reasons of analysis and equipment used, it is artificially divided into ranges, with poorly defined limits and in some cases with overlaps between some.

For the case of analysis, f = 1.41 10⁹ Hz, we have the range called

* Microwave for f> 3 108 Hz to approximately f <3 1011 Hz

For the lower part of the frequency 3 10⁸ <f <3 10⁹ Hz we have UHF television channels and cell phones and military communications.

As the frequency observed by the researchers is in the UHF range, it is possible that they are using microwave equipment for communications, specifically equipment for the measurement of microwave L bands with a range between 1 GHz and 2 GHz.

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8 0
2 years ago
What real-world examples show no work being done? Can you think of examples other than resisting the force of gravity?
GalinKa [24]

-- pushing on a brick wall

-- standing on your little brother's back so that he can't get up

-- taking a nap while on the job

-- squeezing anything that doesn't yield to your squeeze, such as a glass bottle or your girl friend

-- watching TV

-- solving math problems in your head

-- making pictures out of clouds in the sky

8 0
3 years ago
Difference between effort and load​
scoray [572]

<u>Answer</u>:

Effort is the unaltered force. Load is the altered force.

4 0
2 years ago
A car accelerates from 0 m/s to 20 m/s in 5 seconds,
____ [38]

Answer:

4

Explanation:

20-0=20 m/s

20/5=4 m/s2

8 0
2 years ago
A vector is given in terms of its magnitude, v=8.7m/s and its direction, 256 degrees standard position. a) what is this vector i
Wittaler [7]

Answer:

Explanation:

Given

magnitude of vector=8.7 m/s

Direction =256^{\circ}

Therefore vector x component is =8.7\cos (256)

=-2.104

i.e. it is acting in negative x axis

vector y component=8.7\sin (256)=-8.44 m/s

Therefore it lies in negative y axis

Judging vector x and y component

It lies in third quadrant

4 0
3 years ago
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