303 uays. 20. Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blade's tips can be quite high-many times higher than the wind speed. A turbine has blades 54 m long that spin at 14 rpm. At the tip of a blade, what is the speed? At the tip of a blade, what is the centripetal acceleration? zirl oo sonot ten o to no

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Question 20
93.
Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of
365 days.
no ol
08.0 1o 2c0n
20. Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of
the blade's tips can be quite high-many times higher than the wind speed. A turbine has blades 54 m long
that spin at 14 rpm.
At the tip of a blade, what is the speed?
At the tip of a blade, what is the centripetal acceleration?
bne
23. To withstand "g-forces" of up to 10g, caused by suddenly pulling out of a steep dive, fighter jet pilots
train on a "human centrifuge." 10g is an acceleration of 98 m/s².
If the length of the centrifuge arm is 14 m, at what speed is the rider moving when she experiences 10g?
Transcribed Image Text:93. Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of 365 days. no ol 08.0 1o 2c0n 20. Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blade's tips can be quite high-many times higher than the wind speed. A turbine has blades 54 m long that spin at 14 rpm. At the tip of a blade, what is the speed? At the tip of a blade, what is the centripetal acceleration? bne 23. To withstand "g-forces" of up to 10g, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a "human centrifuge." 10g is an acceleration of 98 m/s². If the length of the centrifuge arm is 14 m, at what speed is the rider moving when she experiences 10g?
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