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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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If we use a 10cm converging lens instead of a 5cm converging lens, would the first point at which the image focuses (as you slid
maks197457 [2]

Answer:

first point at which the image focuses will be closer

Explanation:

given data

converging lens = 10 cm

converging lens = 5 cm

lens = 5 cm

to find out

would the first point at which the image focuses be closer or farther

solution

we apply here lens formula that is

1/f = 1/u + 1/v   ......................1

so here

v = f × u / u - f

so here for f = 10 cm  v will be

v = 10u / u-10      ..........................2

and

for f = 5 cm v will be

v = 5u / u-5       .     ........................3

now if we compare equation 2 and 3 we can say that

v for f = 5 cm is greater than v for f = 10 cm

so here first point at which the image focuses will be closer

4 0
3 years ago
The water in a deep underground well is used as the cold resevoir of a Carnot heat pump that maintains the temperature of a hous
VMariaS [17]

Answer:

The temperature of well water be 288.07 K

Explanation:

We have given Heat in house Q_H=13900J

Work done W = 900 J

Efficiency is given by \eta =\frac{W}{Q_H}=\frac{900}{13900}=0.0647

Efficiency is also given by \eta =1-\frac{T_L}{T_H}, here T_L is lower temperature and T_H is higher temperature

So 0.0647=1-\frac{T_L}{T_H}

0.0647=1-\frac{T_L}{308}

T_L=288.07K

So the temperature of well water be 288.07 K

6 0
3 years ago
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wlad13 [49]

Answer:

3rd class lever

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

5 0
3 years ago
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umka2103 [35]
Here, If acceleration is uniform, change is velocity will be uniform, and position-time graph represents for velocity, so it would be Linear

In short, Your Answer would be Option D

Hope this helps!
6 0
4 years ago
Which two factors does the power of a machine depend on
azamat
Power in physics terms depends on both work and time because of the equation P=W/T

Hope this helps :D

8 0
3 years ago
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