Answer:
31.25
Explanation:
The formula for the potential energy of a spring is 
, where x is the distance in meters the spring is stretched. Plugging in the numbers that you are given, you get 
. Hope this helps!
Warmer air has molecules more spread out, so I'd say a decrease in air pressure.
Answer:
Every gene are made of 2 alleles
The frequency of the light source is 1.5 x 10¹⁵ Hz.
<h3>
Frequency of the light source</h3>
The frequency of the light source is determined using the following equations;
c = fλ
where;
c is speed of light
f is the frequency
λ is the wavelength
f = (3 x 10⁸) / (2 x 10⁻⁷)
f = 1.5 x 10¹⁵ Hz
Thus, the frequency of the light source is 1.5 x 10¹⁵ Hz.
Learn more about frequency of light here: brainly.com/question/10728818
