Answer:
When atoms in a gas are this hot, they move so fast that when they collide, they emit X-ray photons with wavelengths less than 10 nm. The Earth's atmosphere blocks all X-rays from space, so space telescopes must be used to observe in these wavelengths.
Explanation:
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In order for the Earth to get larger, more mass would have to be added. Since no new mass is added in the process, It's size doesn't increase.
Answer:
Explanation:
Given
through (0,1) and (1,5)
through (0,-6) and (1,-2)
Required
Determine the value of k if f(x) is translated vertically down
To get the value of k, we perform the following operations.
For (0,-6) --- Substitute 0 for x and -6 for g(x) in
For (1,-2) --- Substitute 1 for x and -2 for g(x) in
To further show that k = -7, we have the following:
When translated downward by 7 units, the function becomes
Recall that: and
So, we have:
Subtract 
from both sides
The answer is B. The Doppler Effect is used to calculate the velocity (speed) of something. Astronomers use it to see how fast stars and galaxies are moving away from us.
