We can use rotating cylinder to store energy in space. Let a 10-meter-long cylinder with diameter 1.0 m has mass 60000 kg. Estimate the kinetic energy it can store when it is rotating in an angular speed  50 rad/s?? ???/?

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Q: A horizontal platform in the shape of a circular disk rotates freely in a horizontal plane about a…

A: Here L is constant therefore,

Q: h the figure, two particles, each with mass m = 0.79 kg, are fastened to each other, and to a…

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Q: The rigid body shown is rotated about an axis perpendicular to the paper and through the point P. If…

A: Given Two objects of mass M and 3M where M = 0.4 kg a = 30 cm = 0.3 m b = 50 cm = 0.5 m angular…

Q: A thick cylinder of inner radius 10 cm and outer radius 50 cm rolls at 4 m/s without slipping. If…

A: Given data The inner radius of the cylinder is ri = 10 cm. The outer radius of the cylinder is ro =…

Q: A water wheel with radius Rw = 1.1 m and mass Mw = 1.7 x 103 kg is used to power a grain mill next…

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Q: Re As shown below, a hollow cylinder with a mass 0.354 kg and an inner radius of 20 cm and an outer…

A: Moment of inertia of a hollow cylinder of mass M with inner radius "a" and outer radius "b" is given…

Q: A bowling ball has a mass 4 kg, a moment of inertia of 1.6 x 10-2 kg x m2 and a radius of 0.1 m. If…

A: Total energy is sum of rotational and translational energy ETot=ERot+ETran=12Iω2+12mv2=12Ivr2+12mv2…

Q: An automobile traveling at 8.33 m/s has tires of 0.950 m diameter. Include all work and equations…

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Q: A uniform, solid sphere with a radius of 0.20 m and a mass of 0.50 kg rolls without slipping on a…

A: The formula for the moment of inertia of a solid sphere is: The formula for the total kinetic…

Q: Consider a basketball player spinning a ball on the tip of a finger. If such a player performs 1.93…

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Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.14 kg and radius R = 0.19 m) and a…

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Q: Two wheels of moment of inertia 8.6 kg.m and 13 kg m² are set in rotation with angular speed 2.1…

A: The situation provided in the question reassembles the condition of inelastic collision. Thus, apply…

Q: While spinning down from 500.0 rpm to rest, a solid uniform flywheel does of work 51 KJ. If the…

A: initial angular speed (ω) = 500 rpm= 500×2π60 = 52.36 radsec final angular speed (ωf) = 0 rpm work…

Q: A 3.0 x 102 g solid, uniform sphere of radius 1.5 cm is released from rest at the top of a ramp.…

A: Let m and r be the mass and radius of the uniform solid sphere, h1 and h2 be the height of the…

Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.30 kg and radius R = 0.17 m) and a…

A: Given :Mass of hoop, mh=0.30 kgRadius of hoop, R=0.17 mMass of rod, mr=0.30 kgLength of the rod,…

Q: A 2.3 kg bowling ball (solid sphere) is rolling down the alley at 4.5 m/s while spinning at 30.0…

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Q: A 30-kg child sitting 5.0 m from the center of a spinning wheel has a constant speed of 5.0 m / s.…

A: Given: The mass of the child is 30 kg. The distance of the child from the center is 5.0 m. The…

Q: A 1.1-kg 20-cm-diameter solid sphere is rotating about its diameter at 73 rev/min. (a) What is its…

A: a)Total kinetic energy is the sum of rotational and translational kinetic energies.

Q: A disk of mass 2.00 kg and diameter 50.0 cm is rotating without slipping across a level floor at a…

A: Given, Mass of the disk = 2 kg = m Diameter of the disc = 50 cm = 0.5 m  r = d/2 = 0.25 m Angular…

Q: propeller is modeled as five identical uniform rods extending radially from its axis. The length and…

A: Length l = 0.705 m Mass m = 2.91 kg  Angular speed = 553 rpm                 = 553 × 2π /60…

Q: a rigid assembly of a thin hoop (of mass mand radius R = 0.150 m) and a thin radial rod (of mass m…

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Q: A 40-kg cylinder pulley with a radius of 0.2 m rotates at a constant angular speed of 4 rad/s. What…

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Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.30 kg and radius R = 0.17 m) and a…

A:

Q: Consider a basketball player spinning a ball on the tip of a finger. If a player performs 1.93 J of…

A: According to the work energy theorem, the rotational kinetic energy of the ball is equal to the work…

Q: Item 21 You are designing a rotating metal flywheel that will be used to store energy. The flywheel…

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Q: A solid sphere of mass m and radius a starts moving from point A above the resident hemisphere to…

A: Given data: The mass of small sphere is m. The radius of small sphere is r=a. The radius of…

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Q: A 34.0 kg wheel, essentially a thin hoop with radius 1.20 m, is rotating at 240 rpm. It must be…

A: Write the given values with suitable variables. m=34 kgr=1.2 mNi=240 rpmNf=0t=18 s Here, m, r, Ni,…

Q: The following figure shows the cross section of a cylinder of radius 3.5 m rotating about its axis a…

A: Given that Radius r = 3.5 m Angular speed ω = 7.4 rad/s

Q: A propeller is modeled as five identical uniform rods extending radially from its axis. The length…

A: The moment of inertia of the rod is, I=mL2=2.59 kg0.745 m2=3.72 kg·m2 The angular speed of the…

Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.28 kg and radius R = 0.13 m) and a…

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Q: A spinning figure skater has a moment of inertia of 1.00 kgm2 with her arms tucked close to her body…

A: Given,  moment of inertia of skater when arms tucked close to her body , Iclosed = 1.00 kgm2 moment…

Q: In the figure, three 0.10 kg particles have been glued to a rod of length L = 11 cm and negligible…

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Q: A 1.10 kg hoop of radius 0.160 m is released from rest at point A in the figure below, its center of…

A: Since we only answer up to three sub-parts, we will answer the first three. Please resubmit the…

Q: Consider a basketball player spinning a ball on the tip of a finger. If a player performs 1.99 J of…

A: The given data are: E=1.99 JC=0.749 mM=0.624 kg Here, E denotes the energy, C denotes the…

Q: We can use rotating cylinder to store energy in space. Let a 10-meter-long cylinder with diameter…

A:

Q: A solid disk of mass M=0.600 kg and radius R=0.350 m is suspended vertically and is free to rotate…

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Q: In the figure, three 0.02 kg particles have been glued to a rod of length L = 13 cm and negligible…

A: We are allowed to give the explanation of first three subparts of a question only which is given…

Q: The angular position of a rotating object is given by the equation e = a + bt + ct? where a, b, and…

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Q: A 750 g disk and a 760 g ring, both 15 cm in diameter, are rolling along a horizontal surface at 1.3…

A: a)From conservation of energy, the expression for the required distance is,

Q: If a car tire with a moment of inertia of 4 kg*m² has an initial angular speed of 8 rad/s and then…

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Q: A 4.00 m length of lightweight cord from the spool with a constant acceleration of magnitude 3.00…

A: Length of chord = 4m Radius of cylinder pool = 0.5 m acceleration of chord = 3.0m/s2 Mass = 1.28kg…

Q: . A point on the outer rim of a hollow disk (I = mr2) with radius r and mass m rotates with a…

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Q: You might have seen basketball showoffs spinning a ball on the tip of a finger. If such a player…

A: Consider W, work has been done to set the basketball spinning from the rest. Take the basketball to…

Q: Trucks can be run on energy stored in a rotating flywheel, with an electric motor getting the…

A: Kinetic energy of a rotating body is given as K.E=12Iω2, where I is moment of inertia of object and…