Use the definition of average acceleration:
<em>a</em> = ∆<em>v</em> / ∆<em>t</em>
We have
<em>a</em> = (8.29 m/s - 3.29 m/s) / (4.99 s)
<em>a</em> = 1.002 m/s²
Gamma rays, x-rays, ultraviolet, infrared, microwaves and radio waves<span>. Together with visible light, all these </span>types<span> of radiation </span>make up<span> what we call the </span>electromagnetic spectrum<span> </span>
When galaxies move farther away the wavelength of the light is longer causing the galaxy to shift red but if it moves closer, the wavelength of the light gets smaller causing the galaxy to blue shift. The reason that the wavelength increases or decrease is due to the doppler effect.
Answer: I will say ''Law of conservation of energy.''
Explanation: Please tell me the answer you get!:)