After years of observation, Hubble made an extraordinary discovery. In 1923 he spotted a Cepheid variable star in what was known as the Andromeda Nebula. Using Leavitt's techniques, he was able to show that Andromeda was nearly 1 million light years away and clearly a galaxy in its own right, not a gas cloud.
On Earth, the air becomes less dense and loses pressure as it rises in height. There is a bad correlation between the two variables.
<h3>What is atmosphere?</h3>
The layers of gases that envelop a planet or other celestial body are its atmosphere. About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, and 1% are other gases.
<h3>What is air pressure?</h3>
Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure. It is the force that the air above a surface applies to it while gravity pulls the surface toward Earth. A barometer is frequently used to measure atmospheric pressure.
<h3>What is altitude?</h3>
Height above sea level is how altitude is defined. Air pressure and height are two different but related ideas. In fact, they are so closely related that many airplane altimeters base their altitude calculations on air pressure. And one can also do the opposite; mountain climbers can determine whether they need to bring an oxygen supply by forecasting the air pressure on a mountaintop with a known elevation.
Know more about pressure:
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r = 30m
v = 2.5 m/s
m = .02kg
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v = r*omega
omega = (delta thaeda)/(delta time)
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2.5 m/s = 30m*omega
.08333... = omega
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*note, omega stands for angular velocity
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Also, it's been a while since I've done a physics problem like this so I could be wrong. I think this is the answer though :)
Answer:
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<em><u>560</u></em><em><u> </u></em><em><u>kilometers</u></em><em><u> </u></em>
I think this is correct.
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