Answer:
8.97 days
Explanation:
Assuming we are asked what will be the period of revolution, this planet's year, in Earth days?
The period of revolution T is given as
here, r= distance between planet and its sun which is same as distance between Earth-Sun = 
g= acceleration due to gravity = 
therefore,
=775580 seconds
= 8.97 days
<h2>Answer: Jupiter and Saturn have compositions that are fairly different from the compositions of Uranus and Neptune.</h2>
Jovian Planets (means "similar to Jupiter") is the name given to the "gaseous giant" planets of our solar system. Although they share many similarities, they have certain differences.
For example, Jupiter and Saturn are classified as "gas giants", while Uranus and Neptune are "ice giants".
This is also due to the fact that Uranus and Neptune have higher concentrations of <u>methane</u> (hence its bluish color) and some heavier elements such as oxygen, carbon, nitrogen, and sulfur. On the other hand, Jupiter and Saturn tend to be orange-white in appearance due to the mixture of <u>hydrogen</u> that gives off a red aspect.
Answer:
<em>Micro waves and radio waves are electromagnetic </em><em>waves while </em><em>ocean wave and seismic wave are mechanical waves. </em>
Explanation:
Electromagnetic waves do not require a medium for propagation. They can travel along vacuum just like they travel through matter.
Further examples of electromagnetic waves are x rays, infrared waves etc.
Spectrum of electromagnetic waves in the increasing order of frequency is radio waves, microwaves, infrared waves, visible light, ultraviolet, x ray, gamma ray.
Mechanical waves require a medium for propagation. Thus they cannot travel through a vacuum.
Sound wave is an example of mechanical wave.
The correct options are:
<span>- upright (the image of a flat mirror always appear in the same vertical-orientation of the object)
</span><span>- left-right reversed (the image of a flat mirror always appear inverted in the horizontal direction)
</span><span>- virtual (the image appears in fact behind the plane of the mirror)</span>
Answer:
A sample of 5.2 mg decays to .65 mg or to 1/8 of its original amount.
1/8 = 1/2 * 1/2 * 1/2 or 3 half-lives.
3 * 30.07 = 90 yrs for 5.2 mg to decay to .65 mg
You can get these other numbers similarly:
5.2 / .0102 = 510 requires about 9 half-lives which is 30 * 9 = 270 yrs
