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agasfer [191]
3 years ago
7

HELP WILL MEDAL !!!!!!!!!!!!!!!!!!!

Physics
2 answers:
UkoKoshka [18]3 years ago
8 0
The speed of light in a vaccum is 182,282 miles per second. Light travels through space over a period of time to reach the earth. When a new star becomes visible it means that a star's light has finnaly reached us. It takes the sun's light an average of 8 minutes and 20 seconds to reach earth. Hope this helps.
Katarina [22]3 years ago
7 0
I think this is the best way to explain it
light from the sun takes 8 minutes and 20 seconds to travel to Earth. So it would be the same if the Earth's light to travel to the sun. The sun is described to be a star.
You might be interested in
Which of the following lies in the ecliptic plane?
babymother [125]
<h2>Answer: Earth's orbital path around the Sun</h2><h2></h2>

The <u>Ecliptic</u> refers to the orbit of the Earth around the Sun. Therefore, <u>for an observer on Earth it will be the apparent path of the Sun in the sky during the year, with respect to the "immobile background" of the other stars.</u>

<u />

It should be noted that the ecliptic plane (which is the same orbital plane of the Earth in its translation movement) is tilted with respect to the equator of the planet about 23\° approximately. This is due to the inclination of the Earth's axis.

Hence, the correct option is Earth's orbital path around the Sun.

7 0
4 years ago
A mass M is attached to an ideal massless spring. When this system is set in motion with amplitude A, it has a period T. What is
frutty [35]
<h2>Option B is the correct answer.</h2>

Explanation:

Period of a spring mass arrangement is given by

                   T=2\pi\sqrt{\frac{m}{k}}

       where m is mass and k is spring constant.

So period of spring mass arrangement is independent of amplitude of motion.

Here amplitude changes from A to 2A.

Period for amplitude A is given by T.

Since period remains same for amplitude 2A also, the period is T.

Option B is the correct answer.

6 0
3 years ago
How much energy (in joules) is required to evaporate 0.0005 kg of liquid ammonia to vapor at the same temperature?
Lana71 [14]

Answer:

685.6 J

Explanation:

The latent heat of vaporization of ammonia is

L = 1371.2 kJ/kg

mass of ammonia, m = 0.0005 Kg

Heat = mass x latent heat of vaporization

H = 0.0005 x 1371.2

H = 0.686 kJ

H = 685.6 J

Thus, the amount of heat required to vaporize the ammonia is 685.6 J.

6 0
3 years ago
The Kyoto Protocol, which limits emissions of greenhouse gases for developed nations, is an example of which type of law? A. con
bazaltina [42]

The Kyoto Protocol, which limits emissions of greenhouse gases for developed nations, is an example of international Law

Explanation:

The Kyoto Protocol is named after a Japanese city in which it was executed in the year 1997 on 1st December.

The basic aim of the Kyoto Protocol is to reduce/Limit  the emission of greenhouse gases which contributed to  global warming

The Protocol was linked to the United Nations Framework Convention on Climate Change (UNFCCC)

The important factor that led to the failure of Kyoto's Protocol  are deficiencies in the structure of the agreement, such as the exemption of developing countries from reductions requirements, or the lack of an effective emissions trading scheme

6 0
4 years ago
Read 2 more answers
Determine the minimum amount of energy (in MeV) needed to remove a neutron from a 88Sr nucleus. (For all masses, keep six places
Sindrei [870]

Answer:

  11.106 Mev.

Explanation:

Sr⁸⁸         →        Sr ⁸⁷      +       ₀n¹

87.905612       86.908877       1.008664   ( atomic masses in amu )

mass defect = ( 86.908877 + 1.008664) - 87.905612 = .011929 amu.

Equivalent energy in MeV = .011929 x 931 = 11.106 MeV

6 0
4 years ago
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