Answer:
A principle stating that energy cannot be created or destroyed, but can be altered from one form to another.
Explanation:
Input energy is: 200 joule
Output energy is: 100 joule
100/200*100=%50 efficiency
What happens in the prism stays in the prism. When the light emerges, it has the same frequency and wavelength as when it entered. The prism permanently alters nothing but the angle.
<span>Reference https://www.physicsforums.com/threads/how-does-a-prism-affect-wavelength.489768/ by caseytrimble
Sorry this probably doesn't help
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Answer:
They can travel in a vacuum.
Explanation:
» Only electromagnetic waves travel through vacuum. The other mechanical waves require a material medium to travel.
5lbs is greater.
Hope that helps!
