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kherson [118]
2 years ago
14

How far away is the moon?

Physics
2 answers:
Fed [463]2 years ago
5 0
The moon is 230,100 miles from planet earth.
bekas [8.4K]2 years ago
3 0
338 855 miles from earth to the moon (approx. since the moon and the earth both move
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Need help with exercises 3,4,5<br><br> Will give brainliest!!!
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Steam enters a well-insulated nozzle at 200 lbf/in.2 , 500F, with a velocity of 200 ft/s and exits at 60 lbf/in.2 with a velocit
Ede4ka [16]

Answer:

386.2^{\circ}F

Explanation:

We are given that

P_1=200lbf/in^2

P_2=60lbf/in^2

v_1=200ft/s

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T_1=500^{\circ}F

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h_1+v^2_1+Q=h_2+v^2_2

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1BTU/lb=25037ft^2/s^2

Substitute the values

1\times 500+\frac{(200)^2}{25037}+0=1\times T_2+\frac{(1700)^2}{25037}

500+1.598=T_2+115.4

T_2=500+1.598-115.4

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7 0
3 years ago
An electron with charge −e and mass m moves in a circular orbit of radius r around a nucleus of charge Ze, where Z is the atomic
shepuryov [24]

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where

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This electrostatic attraction provides the centripetal force that keeps the electron in circular motion, which is given by:

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where

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v is the speed of the electron

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k\frac{Ze^2}{r^2}=m\frac{v^2}{r}

And solving for v, we find an expression for the speed of the electron:

v=\sqrt{\frac{kZe^2}{mr}}

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