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Nutka1998 [239]
4 years ago
5

"From the earth to the moon". In Jules Verne’s 1865 story with this title, three men went to the moon in a shell fired from a gi

ant cannon sunk in the earth in Florida.
(a) Find the minimum muzzle speed needed to shoot a shell straight up to an altitude equal to the 2 times earth’s radius RE.


(b) Find the minimum muzzle speed that would allow a shell to reach the height of the moon, 385,000 km, center of the earth to center of the moon

Engineering
1 answer:
Wewaii [24]4 years ago
4 0

Answer:

Check the explanation

Explanation:

Kindly check the attached image below to get the step by step explanation to the above question.

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10 litres of an ideal gas at 27°C and 12atm pressure is isothermally and reversibly expanded to a final pressure of 3atm.Calcula
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Known :

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3 years ago
It is given thatopen parenthesis, x minus 2y, close parenthesis, times open parenthesis, x + 2y, close parenthesis, = 4Quantity
aksik [14]

Answer:

  Quantity B is greater.

Explanation:

<u>Given</u>:

  (x -2y)(x +2y) = 4

  A = x² -4y²

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<u>Find</u>:

  the relationship between A and B

<u>Solution</u>:

The given expression can be expanded to give ...

  x(x +2y) -2y(x +2y) = x² +2xy -2xy -4y² = x² -4y²

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  A < B

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