The angular speed such a cylinder must have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth is 0.046 rad/s.
<h3>
Angular speed of the cylinder</h3>
The angular speed such a cylinder must have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth is calculated as follows;
a = v²/r
v² = ar
(ωr)² = ar
ω²r² = ar
ω²r = a
ω² = a/r
ω = √(a/r)
where;
- a is centripetal acceleration = acceleration due to gravity, g
- r is radius of the cylinder = 5.66 m / 2 = 2.83 mi = 4554.4 m
- ω is angular speed
ω = √(g/r)
ω = √(9.8/4554.4)
ω = 0.046 rad/s
Thus, the angular speed such a cylinder must have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth is 0.046 rad/s.
Learn more about angular speed here: brainly.com/question/6860269
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Answer:
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Explanation:
Because of the Suns magntism the solar system has been created
Answer:
The 15 ⁰C measured at this altitude is above the standard temperature for the altitude.
Explanation:
The standard temperature at sea level is 15 degrees Celsius. It decreases about 2 degrees C (or 3.5 degrees F) per 1,000 feet of altitude above sea level.
235 meters is equal to 771 feet.
Using the formula below, we can estimate temperature loss due to this change in altitude, that is 771 feet above sea level.
temperature loss = (3.5 x Change in altitude)/1000ft
temperature loss = (3.5 x 771ft)/1000ft = 2.7⁰F, (32 -2.7 = 29.3 ⁰F)
this is equivalent to 1.5⁰C temperature loss.
Thus, the standard temperature of the engineering quadrangle at 235 meters above sea level is 13.5 ⁰C.
Therefore, the 15 ⁰C measured at this altitude is above the standard temperature for the altitude.
<h2><em>how far will a freely falling object fall from rest in 5 seconds?</em></h2>
- <em>If an object free falls from rest for 5 seconds, its speed will be <u>about 50 m/s.</u></em>
<em><u>hope </u></em><em><u>it</u></em><em><u> helps</u></em>
<em><u>#</u></em><em><u>c</u></em><em><u>a</u></em><em><u>r</u></em><em><u>r</u></em><em><u>y</u></em><em><u> </u></em><em><u>on</u></em><em><u> learning</u></em>
Remote-sensing satellites would be able to help people stay safe from massive fires through them detecting it from the orbit and sending the data to the people below. The people would be able to warn other people of the massive fires currently happening nearby, thus resulting to zero casualties. Though that might be the case, satellites might only be able to detect massive fires to the extent that the damage has already been done. It can be contained, but it would be much better if it would detect a certain size of fire and consider it as dangerous. Massive fires, on personal knowledge, would come close to burning neighbourhoods and those that occur in forests.<span />