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2 years ago

If the radius of a coinis 20cm, find itssurface area -

Physics

1 answer:

meriva2 years ago

8 0

Answer:

800 $\pi$ cm²

Explanation:

Given parameters:

radius of the coin = 20cm

Unknown:

Surface area of the coin = ?

Solution:

A coin is made up of two faces;

Surface area = 2(πr²)

Insert the parameters and solve;

Surface area = 2( $\pi x 20^{2}$ )

Surface area = 800 $\pi$ cm²

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During an isothermal process, 10 j of heat is removed from an ideal gas. What is the work done by the gas in the process?

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1 year ago

A tube is sealed at both ends and contains a 0.0100-m long portion of liquid. The length of the tube is large compared to 0.0100

Ahat [919]

Answer:

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3 years ago

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Answer:

x(t) = -3sin2t

Explanation:

Given that

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Extension of the spring, s = 4 m

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Velocity of, v = 6 m/s

The proper calculation is attached via the image below.

Final solution is x(t) = -3.sin2t

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3 years ago

If the radius of a coinis 20cm, find itssurface area -​

If the radius of a coinis 20cm, find itssurface area -