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butalik [34]
3 years ago
8

5.2*10^26 molecules of ch4 in volume

Chemistry
1 answer:
aivan3 [116]3 years ago
4 0
5.2e+26is it this? im not sure 
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A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s accelerati
erica [24]
Final velocity(v) = 32 m/s
Initial velocity(u) = 10 m/s

Using kinematic equation v = u + at, 

32 = 10 + a(3)

32-10
---------  = a
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a = 22
      ----
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a = 7.3 m/s^2.

Hence acceleration of the roller coaster is 7.3 m/s^2.

Hope this helps!!
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explain the law of conservative of energy, give a specific example using kinetic and potential energy that shows how energy is c
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Answer:

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Explanation:

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

Im bad at these questions hope it helps and have a good day.

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