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Harlamova29_29 [7]
3 years ago
10

Is the Sun an average star? Why or why not?

Physics
1 answer:
Sauron [17]3 years ago
5 0

Our Sun is an average star. It is not the oldest star in our Galaxy, but it is not the youngest either; it is at an average age. It is not the hottest star in our galaxy, but it is not the coldest. It is not the biggest, but it is not the smallest. It is just another typical star, similar to all the others in the galaxy.

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Most of uranus's atmosphere is composed of
Vladimir [108]
<span>So the question is what gases form the atmosphere of Uranus. So Uranus and Neptune are classified as "ice giants". They have a similar atmosphere to "gas giants" Saturn and jupiter and Neptunes atmosphere is primarily composed out of hidrogen and helyum. So the correct answer is a.</span>
5 0
3 years ago
Read 2 more answers
Which other element is most likely to be a nonreactive gas?
krok68 [10]

Answer:

A. Argon

Explanation:

It is a noble gas, a group which is not reactive.

5 0
3 years ago
James Joule (after whom the unit of energy is named) claimed that the water at the bottom of Niagara Falls should be warmer than
Molodets [167]

Answer:

0.12 K

Explanation:

height, h = 51 m

let the mass of water is m.

Specific heat of water, c = 4190 J/kg K

According to the transformation of energy

Potential energy of water = thermal energy of water

m x g x h = m x c x ΔT

Where, ΔT is the rise in temperature

g x h =  c x ΔT

9.8 x 51 = 4190 x ΔT

ΔT = 0.12 K

Thus, the rise in temperature is 0.12 K.

7 0
3 years ago
These questions !plz !! i need help!!!
Nataly_w [17]

(6) Wagon B is at rest so it has no momentum at the start. If <em>v</em> is the velocity of the wagons locked together, then

(140 kg) (15 m/s) = (140 kg + 200 kg) <em>v</em>

==>   <em>v</em> ≈ 6.2 m/s

(7) False. If you double the time it takes to perform the same amount of work, then you <u>halve</u> the power output:

<em>E</em> <em>/</em> (2<em>t </em>) = 1/2 × <em>E/t</em> = 1/2 <em>P</em>

<em />

3 0
3 years ago
Please help, I don't get this
Trava [24]
C the third one i think good luck
5 0
2 years ago
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