Light travels at the speed of 186,000 miles per second. If you were to travel around the earth it would be 7.5 times in a second
The answer would be:
A, a space station orbiting Earth.
I’m so sorry, I need more information. Good luck and I’m sorry I couldn’t help you :(
The "blue" object would look the same. Say that this blue object is a square. That "square" is every color but blue. The only reason that you see it as "blue" is because what we call "blue", it the only color of light that bounces back at our eyes. Under all colors of light, especially simultaneously. This square or any shape for that matter would absorb the other colors of light, but the blue will be rejected. Therefore, we can only see what bounces back at our eyes, which is the color blue in this case.
Hope this helps, WyattMarine501
Answer:

Explanation:
Given
-- radius of hydrogen atom
<em>See attachment</em>
Required
Determine the radius of magnesium atom (R)
From the attachment, the ratio of a hydrogen atom to a magnesium atom is:

Simplify

Represent the radius as ratio:

Substitute 

Equate both ratios

Express as fraction

Cross Multiply







Hence, the radius of the magnesium atom is: 