It has been suggested that rotating cylinders about 19.5 mi long and 4.67 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth? ______________rad/s

Q: Human centrifuges are used to train military pilots and astronauts in preparation for high-g…

A: a) Angular speed = (88.2/4.95 )1/2                                 = 4.22 rad/s

Q: Chris tied a 902g rock to a rope and swung it above his head, making 35 complete revolutions in two…

A: Mass of rock (m) = 902 g = 0.902 kg Number of revolutions in 2 minutes = 35Number of revolutions in…

Q: A truck with 38 inch diameter wheels is traveling at 55 mph How many revolutions do the wheels make…

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Q: A cooling fan is turned off when it is running at 930 rev/min. It turns 1,500 revolutions before it…

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Q: A giant Ferris wheel in Seattle, Washington has a diameter of 135 m and takes 30 minutes to make one…

A: The radius of the Ferris wheel is, r=135 m2=67.5 m The distance traveled by a rider in one…

Q: It has been suggested that rotating cylinders about 11.0 mi long and 5.92 mi in diameter be placed…

A: Given: Length of cylinder, L=11 mi = 17702.784 m Diameter of cylinder, d=5.92 mi = 9527.316 m     To…

Q: A 70 kg person is sitting on a bathroom scale while riding on a Ferris Wheel. The Ferris Wheel has a…

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Q: NASA's Ames Research Center in Mountain View, California, houses a 20g centrifuge used to conduct…

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Q: It has been suggested that rotating cylinders about 17.5 mi long and 6.12 mi in diameter be placed…

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Q: An athlete swings a 5.30-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A: Mass of ball (m) = 5.30 kg radius of circle (r) = 0.950 m angular speed (ω) = 0.410 rev/sec

Q: A high-speed drill rotating counterclockwise at 2000 rpm comes to a halt in 3.0 s. a) What is the…

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Q: It has been suggested that rotating cylinders about 12.5 mi long and 3.58 mi in diameter be placed…

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Q: It has been suggested that rotating cylinders about 16.5 mi long and 4.65 mi in diameter be placed…

A: Given data The length of the cylinder is l = 16.5 mi. The diameter of the cylinder is d = 4.65 mi =…

Q: Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 360 rpm, and the piece…

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Q: It has been suggested that rotating cylinders about 20.0 mi long and 3.53 mi in diameter be placed…

A: It is given that, l=20 mi=32186.9 md=3.53 mir=d2=3.532=1.765 mi=2840.4922 m

Q: An automobile engine slows down from 3400 rpm to 1200 rpm in 2.3 s. Part A Calculate its angular…

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Q: A wind turbine is rotating counterclockwise at 0.78 rev/s and slows to a stop in 17 s. Its blades…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: A ceiling fan rotates at the rate of 30 degrees every .63 seconds. What is the angular speed of the…

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Q: If a centrifuge has an angular acceleration of 35.2 rad/s2 and a radius of 27 meters, what is its…

A: Given, Angular acceleration of centrifuge  α= 35.2 rad/s2  Radius (R) = 27m

Q: A centrifuge starts from 0 and speeds up by 2.5 m/s every second. If radius=12 m, how long does it…

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Q: A ball has a radius of 15cm. It is rolling at a steady 12 rad/s. What is its linear speed? ___ m/s…

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Q: A wind turbine has 12,000 kg blades that are 39 m long. The blades spin at 23 rpm .If we model a…

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Q: an object of mass 0.5 kg moving in a circular path of radius 0.25 m experiences a centripetal…

A: Given value--- mass = 0.5 kg. radius = 0.25 m. centripetal acceleration = 9 m/s2.  We have to…

Q: What's the linear speed of a point on the equator of a planet whose radius is 5.4 times that of…

A: Given--- radius of planet = 5.4 times of the earth radius.  We have to find--- linear of a point…

Q: A lab centrifuge spins at 1470 rad/s (14,000 rpm).  Suppose it has radius 8.20 cm. What is the…

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Q: It has been suggested that rotating cylinders about 16.5 mi long and 3.60 mi in diameter be placed…

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Q: At its peak, a tornado is 64.0 m in diameter and carries 100 km/h winds. What is its angular…

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Q: Starting from rest, a centrifuge can reach its operational speed of 4300 rpm in 10.0 s.      How…

A: Given Data Initial angular speed is ωi=0 Final angular speed is ωf=4300 rpm  ωf=4300 rpm=4300×2π60…

Q: A truck with 0.335 m radius tires travels at 41.0 m/s. At how many radians per second are the tires…

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Q: Review I Constants centripetal acceleration. In this problem we consider a mass moving in a circle…

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Q: A 24-inch diameter tire rotates 8.2 revolutions per second a. determine the angular speed of the…

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Q: A wind turbine is rotating counterclockwise at 0.78 rev/s and slows to a stop in 17 s. Its blades…

A:

Q: At its peak, a tornado is 66.0 m in diameter and carries 270 km/h winds. What is its angular…

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Q: A bicycle is riding at a tangential speed of 13.2 m/s around a circular track. The magnitude of the…

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Q: It has been suggested that rotating cylinders about 15.0 mi long and 5.89 mi in diameter be placed…

A: Given, l= 15mi =15*1609m = 24135 m d= 5.89mi = 5.89*1609m =9477.01 m Where, l is the length of the…

Q: Yelena is driving her car on a dry, non-slippery road. The car moves forward with a speed of 34.1…

A: Given data:  Speed (v) = 34.1 m/s Radius (r) = 0.45 m Required: Centripetal acceleration (ac)

Q: At its peak, a tornado is 50.0m in diameter a rev/s

A: Given:- The Diameter  d= 50 m  The speed of the wind is v  = 110 km/h  Find:- The angular velocity…

Q: When a carpenter shuts off his circular saw, the 10.0-inch-diameter blade slows from 4385 rpm to…

A: Given:Diameter of the blade = 10 inchRadius of the blade = 5 inchAngular velocity = 4385 rpmTime…

Q: An engine flywheel initially rotates counterclockwise at 6.83 rotations/s. Then, during 25.1 s, its…

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Q: It has been suggested that rotating cylinders about 18.0 mi long and 4.49 mi in diameter be placed…

A: Given data The length of the rotating cylinder is given as L = 18 miles. The diameter of the…

Q: It has been suggested that rotating cylinders about 18.5 mi long and 4.40 mi in diameter be placed…

A: AIM: To determine the angular speed of the cylinder such that, the centripetal acceleration is equal…

Q: It has been suggested that rotating cylinders about 18.5 mi long and 4.60 mi in diameter be placed…

A:

Q: It has been suggested that rotating cylinders about 18.5 mi long and 5.52 mi in diameter be placed…

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Q: It has been suggested that rotating cylinders about 10.5 mi long and 3.54 mi in diameter be placed…

A: When in space the centripetal force on the cylinder will be equal to the gravitational force on the…

Q: A wheel of a radius 5.02 m rotates at a uniform speed. If a point on the rim of the wheel has a…

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Q: You have a horizontal grindstone (a disk) that is 95 kg, has a 0.36 m radius, is turning at 86 rpm…

A: The torque due to the frictional force is τ=r×f  =rμN…

Q: It has been suggested that rotating cylinders about 11.0 mi long and 3.63 mi in diameter be placed…

A: The length of a cylinder is, L=11 mi=11 mi×1609.34 m1 mi=17702.74 m The radius of a cylinder is,…