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Nataly [62]
3 years ago
8

Which statement best describes why the universe could be considered an isolated system?

Physics
1 answer:
devlian [24]3 years ago
7 0
<span> In the Universe , all matter and energy contained; no energy or matter </span>
<span>leaves the Universe. </span>
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When the light from a light bulb is reflected by a diffraction grating, a continuous band spectrum is obtained (like a rainbow).
MA_775_DIABLO [31]

Answer:

The light of a light bulb contains all the wavelengths of visible band which on passing through diffraction grating appear in the form of continuous spectra.

Discrete lines are observed when the electron makes a transition from higher orbit to lower orbit releasing a photon having energy which is equivalent to the energy difference between the two orbits.

6 0
3 years ago
As dancers twirl faster and faster around their partners, they are demonstrating what type of energy?
solniwko [45]
Your answer would be Kinetic energy
7 0
3 years ago
The speed limit on certain interstate highways is 60 miles per hour.
nevsk [136]

Answer:

A.88 feet per second.

B.96.56 km /hr

Explanation:

A

When converting from miles per hour to feet per second, we can use the following conversion factor.

1 mile per hour =  1.46667 feet per second.

Hence, 60 miles per hour will be = 60 X 1.46667 = 88 feet per second.

B.

Similarly, we can use the same process when converting from miles per hour to km per second.

1 mile = 1.60934 km

hence to convert we will multiply 60 miles/hour by 1.60934 km = 96.56 km /hr

7 0
3 years ago
Science Help ASAP please!!! 35 points what is the primary role of the respiratory system in humans.
jolli1 [7]
B) To obtain oxygen

The respiratory system gets rid of carbon dioxide in exchange for oxygen
7 0
4 years ago
Which statements describe elliptical galaxies? *Select the two correct answers.*
Alecsey [184]

Elliptical galaxies are galaxies that are shaped like an ellipse. An ellipse is oval in shape, which means elliptical galaxies are oval in shape.

The <u>two correct statements</u> that describe elliptical galaxies are:

B. They are the most common galaxy type.

C. They typically contain very little gas and dust.

  • Elliptical galaxies are galaxies where you will find little or no gas and dust. The galaxies that are numerous in number are the elliptical galaxies.

  • In the elliptical galaxy, you can't find any <u>spiral component </u>in it.

Therefore, from the above explanation, we can see that <u>option B and C is the correct option.</u>

To learn more, visit the link below:

brainly.com/question/13645005

6 0
3 years ago
Read 2 more answers
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