1. Because the cart on the coaster must get all of its power from this first hill.
2. It must be smaller because if it was bigger the cart would roll backwards without enough power.
3. an upward climb that is too steep.
I answered the first 3 but try to do the last two by yourself. They are very easy once you figure it out. Try searching the definition of the main points. :)
The reverberation time with 800 audiences is 0.875 seconds.
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Reverberation time with 800 audience</h3>
R₁V₁ = R₂V₂
where;
- R₁ is the reverberation time with 400 audience
- R₂ is the reverberation time with 800 audience
- V₁ is initial volume
- V₂ is final volume
R₂ = R₁V₁/V₂
R₂ = (1.4 x 500) / 800
R₂ = 0.875 seconds
Thus, the reverberation time with 800 audiences is 0.875 seconds.
Learn more about reverberation time here: brainly.com/question/9278479
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A good scientific question should be pre-determined and also have a meaning or relation to science.
Electricity is genterated by generator