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Lisa [10]
2 years ago
8

explain how a roller coaster functions using gravity and momentum. Why does it not need an engine or a motor to speed it up and

slow it down?
Engineering
2 answers:
vichka [17]2 years ago
5 0

Answer:

A roller coaster does not have an engine to generate energy. This builds up a supply of potential energy that will be used to go down the hill as the train is pulled by gravity. Then all of that stored energy is released as kinetic energy which is what will get the train to go up the next hill.

Explanation:

miv72 [106K]2 years ago
5 0
Same the a nice way you are you all the way to your home you are so funny you
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3 0
3 years ago
It is true about Metals and alloys: a)-They are good electrical and thermal conductors b)-They can be used as semi-conductors c)
ycow [4]

Answer:

(d) a and c are correct

Explanation:

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ALLOYS: Alloys are those materials which are made up of combining of two or more than two metals these also have good thermal and electrical conductivity and me liable property

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so from above discussion it is clear that option (d) will be the correct option

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D

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I would say this awnser because its the only one that makes sence to me

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