3 years ago

How are physical and chemical changes similar?

Physics

1 answer:

Musya8 [376]3 years ago

4 0

Physical and chemical changes are similar because matter experiences a change in state while undergoing either change.

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Answer:

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Explanation:

Given data

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To find

Terminal velocity (in meters per second and kilometers per hour)

Solution

At terminal speed the weight equal the drag force

$mg=1/2*C*p_{air}*v^{2}*A_{area}\\ v=\sqrt{\frac{2*m*g}{C**p_{air}*A_{area}} }\\ Where C=0.7\\v=\sqrt{\frac{2*9.8*80}{1.21*0.14*0.7} }\\ v=115m/s$

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