College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question 19
How fast is a child on the horse going (in m/s)?
19. The radius of the earth's very nearly circular orbit around the sun is 1.50×10''m.
Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days.
Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of
365 days.
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
At the tip of a blade, what is the speed?nosnod edt
At the tip of a blade, what is the centripetal acceleration?
rpm.
Jon odi to no
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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Transcribed Image Text:How fast is a child on the horse going (in m/s)? 19. The radius of the earth's very nearly circular orbit around the sun is 1.50×10''m. Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days. Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of 365 days. 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 At the tip of a blade, what is the speed?nosnod edt At the tip of a blade, what is the centripetal acceleration? rpm. Jon odi to no 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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