A dog sits at the center of a disk that is rotating at a constant rate. The dog slowly moves to the edge of the disk. Which of the following values doesn't change? Angular velocity Rotational inertia Rotational Kinetic Energy Angular momentum

Q: What is the new rotational energy of the system? answer have to be in kJ How much chemical…

A: The magnitude of the angular momentum of the system can be given by,     Li=m1v1r1i+m2v2r2i=2mv(d2)⇒…

Q: The tangential acceleration of a point on a rotating object equals the distonce of that point trom…

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Q: On the topic of rotational motion, the gyroscope flywheel rotates in a circular motion horizontally…

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Q: A system of 5 point masses are rotating around a common point in space. If each 0.25 kg mass is a…

A: Given data:  A system of 5 point masses Mass of each (m) = 0.25 kg Distance (r) = 0.54 m Required:…

Q: The rotational velocity of a merry-go-round increases at a constant rate from 0.4 rad/s to 1.8 rad/s…

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Q: A potter’s wheel is rotating with an angular velocity of 2.0 rad/s. If the velocity is increased to…

A: Given in question: Initial angular velocity(ωi) = 2.0 rad/s                                 Final…

Q: An ice skater starts to spin with her arms outstretched. She then gently brings her arms in, and…

A: It states that when no external torque applied to the body, its angular momentum remains constant.…

Q: A solid sphere with a mass of 2 kg and a radius of 0.1 meters is rolling without slipping with a…

A: When an object rotates about an axis, it possesses kinetic energy due to its rotation.This is known…

Q: A bicycle slows down uniformly from v = 10 m/s to rest over a distance of 50 m. Each wheel and tire…

A: The equation to solve for the radius of the wheel is as follows: r=d2r=2 m2r=1 m…

Q: A wheel that starts from rest has an angular speed of 20 rad/s after being uniformly accelerated for…

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Q: A hollow spherical shell is rolling along the floor. What is the ratio of its total kinetic energy…

A: Linear velocity of sphere is v=rω

Q: A hollow sphere with a mass of 2.1 kg and radius of 0.15 m rolls without slipping down an incline of…

A: Given, mass of hallow sphere m = 2.1 Kg Radius of hallow sphere r = 0.15 m Incline angle θ=35∘…

Q: A section of hollow pipe and a solid cylinder have the same radius and mass. The length of the solid…

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Q: What is the rotational kinetic energy of the device shown if it rotates at a constant speed of 62.8…

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Q: A disk of mass M and radius R rotates with an angular speed w about an axis through its center, an…

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Q: A wheel rotates about a fixed axis with an initial angular velocity of 26 rad/s. During a 7-s…

A: We know the initial and final angular velocity according to this problem. Now we can apply the…

Q: A solid ball has a mass of 0.165 kg and a radius of 51mm in mk units what is the rotational inertia…

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Q: A wheel is rotating around a vertical axis, counterclockwise as seen from above. The direction of…

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Q: A medium disk is moving initially with a rotational speed of 30 rads per second and a final…

A: Given: The initial angular speed is 30 rad/s. The final angular speed is 80 rad/s. The acceleration…

Q: Two different size solid spheres, made of the same material, are placed at the top of identical…

A: Explanation: Rotational kinetic energy of solid sphere is krot.=12Iω2 where I is the moment of…

Q: What is the moment of inertia ? of an object that rotates at 13.0 rev/min about an axis and has a…

A: Given data:  Angular velocity (ω) = 13.0 rev/min Rotational kinetic energy (K) = 13.0 J Required:…

Q: What is the velocity of a point on the rim of a disk that has a moment of inertia of 0.5 kg-m2 and a…

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Q: What are the units for angular velocity?

A: Introduction: Angular velocity is defined as the rate of change of angular displacement. For an…

Q: A gymnast on a high bar swings clockwise through two revolutions in a time of 2.5 s. Find the…

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Q: How is rotational motion different from linear motion? Particles within the objects in rotational…

A: In rotational motion, linear velocity of each particle would be different. This is because different…

Q: The Earth spins on its axis and also orbits around the Sun. For this problem use the following…

A: a. Rotational Kinetic Energy of the Earth about its axisThe rotational kinetic energy of an object…

Q: A skater is spinning about a fixed symmetrical vertical axis. When she lifts her arms above her…

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Q: What is the moment of inertia: A solid disk with a mass of 5.0 kg and a radius of 2.0 m A 0.50 kg…

A: a) Moment of inertia of disk =12MR2 =10 kgm2 b) IT can be treated as a point mass.  Moment of…

Q: What is the moment of inertia ? of an object that rotates at 14.0 rev/min about an axis and has a…

A: Angular velocity = 14 rev/min Angular velocity = (2π/60)×14 rad/s Angular velocity = 1.466 rad/s

Q: The net torque of the bar of negligible mass as shown in the figure below about the axis indicated…

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Q: Two people start at the same place and walk around a circular lake in opposite directions. One has…

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Q: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

A: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

Q: A car has a wheel of radius 0.3m started from rest and its speed became 15m/sec after 8 seconds.…

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Q: A rotating disk with an angular velocity of 3 rev/s is brought to rest in 12 seconds by a constant…

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Q: An orangutan leaps off of a cliff and its body begins to rotate clockwise. If the orangutan then…

A: Solution: We are given that the orangutan leaps off a cliff and then its body begins to rotate…