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Fiesta28 [93]
2 years ago
10

12. Which of these is more dense?

Physics
1 answer:
Lena [83]2 years ago
3 0

Answer:

answer is E

Explanation:

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Which computational model can be applied to the total internal energy of a system with two point masses?
I am Lyosha [343]

Answer:

D

Explanation:

Took the test :)

4 0
3 years ago
Devon places sliced potatoes in a package of aluminum foil. He puts a metal grate over a campfire and sets the package on the gr
sp2606 [1]

when he set the potatoes in the aluminum foil over the campfire because the heat was directly touching them and heating them

7 0
2 years ago
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Dos bolas, de masas mA = 40 g y mB =60 g, esta?n suspendidas como se observa en la figura. La bola ma?s ligera se jala en un a?n
Ymorist [56]
MA=40 or something I really don’t know
3 0
2 years ago
What is variable velocity?​
KIM [24]

Answer:

velocity in which the space described varies from instant to instant, either increasing or decreasing in the former case called accelerated velocity

Explanation:

I hope this helps :)...

7 0
2 years ago
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(a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 108 m. Find
Goshia [24]

Answer:

It took 1.28 seconds to his voice to reach the Earth via radio waves.

Explanation:

The electromagnetic spectrum is the distribution of radiation due to the different frequencies at which it radiates and its different intensities, that radiation is formed by electromagnetic waves, which are transverse waves formed by an electric field and a magnetic field perpendicular to it.

The distribution of the radiation in the electromagnetic spectrum can also be given in wavelengths, but it is more frequent to work with it at frequencies, the highest being that of gamma rays, followed by X-rays, ultraviolet rays and the visible region , and those of lower frequencies, which correspond to infrared, microwave and radio waves.

Light propagates as electromagnetic wave in vacuum with a speed of 3x10^{8}m/s. Therefore, radio waves will have in vacuum the same speed.

Then, to know the time that it took for its voice, the next equation can be used:

c = \frac{d}{t}  (1)

Where c is the speed of light, d is the distance and t is the time.

Notice that t can be isolated from equation 1.

t = \frac{d}{c} (2)

t = \frac{3.85x10^{8} m}{3x10^{8}m/s}

t = 1.28s

Hence, it took 1.28 seconds to his voice to reach the Earth via radio waves.

7 0
3 years ago
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