A 2.0 kg ,  20-cm-diameter turntable rotates at 130 rpm on frictionless bearings. Two 510 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick.   What is the turntable's angular velocity, in rpm, just after this event? Express your answer to two significant figures and include the appropriate units.

Q: A figure skater has a moment of inertia of 0.39 kg-m2. He is spinning at 251.6 rpm. He extends his…

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Q: A disk spins with a non-constant angular velocity given by: w(t) = Bt³ where B is a positive…

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Q: n 2010, the Sikorsky's X2 helicopter became the world's fastest helicopter, flying at 249 miles per…

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Q: You have a grindstone (a disk) that is 198.641 kg, has a 0.699-m radius, and is turning at 97.425…

A: Givenmass of the grinstone M=198.641 kgradius of the grindstone R=0.699 minitial angular speed…

Q: A 150 g ball and a 250 g ball are connected by a 37-cm-long, massless, rigid rod. The balls rotate…

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Q: Jennifer decided to install a ceiling fan in the master bedroom. After a laborious installation, she…

A: initial angular speed (w) = 0 final angular speed = 120 rev/min  = 2 rev/sec  = 12.57 rad/s t = 20…

Q: Joey, whose mass is 36 kg, stands at the center of a 200 kg merrygo- round that is rotating once…

A: Given mass of Joey m=36 kgmass of merry go round m1=200 kgWhen Joey is all the centerIt is…

Q: hree children are riding on the edge of a merry-go-round that is a disk of mass 98 kg, radius 1.6 m,…

A: Given: The mass of the disk is 98 kg. The radius of the disk is 1.6 m. The masses of masses of the…

Q: A DVD is spinning at 650.133 rpm. What is the size of the angular momentum of the DVD if it has a…

A: Angular velocity , ω = 650.133 rpm = 68.1 rad/s Circumference , C = 38.97 cm = 0.39 m Mass , M =…

Q: Microwave ovens rotate at a rate of about 8 rev/min. What is this in revolutions per second?  rev/s…

A: Given in question - Angular velocity (ω) = 8 rev/min To find - (a) What is this in revolutions per…

Q: Q1. A bullet of mass m = 2.0 gram is moving horizontally with a speed v= 500.0 m/s. The bullet…

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Q: A 3.0-m-diameter merry-go-round with a mass of 250 kg is spinning at 20 rpm. Steven runs tangent to…

A: Given data: Diameter of merry-go-round is, d=3.0 m. Mass of merry-go-round is, M=250 kg. Initial…

Q: bugs, Buzz and Crunchy, are siting on a spinning disk. The disk of radius 7.5 m spins with an…

A: Angular velocity ω = 90 degrees/ sec = π/2 rad/s  = 1.57 rad/s

Q: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis…

A: Given that-Mass of solid Cylinder=2.0 kgRadius= 20 cmCounterclockwise rotation=600 rev/minClockwise…

Q: An ice skater rotates at 2.3 rev/s with arms outstretched. He collects his arms and spins at 15.6…

A: Moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the…

Q: A turntable with a mass of 12 kg and a radius of 1.8 meters spins at a constant angular velocity of…

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Q: Two identical discs are spinning on a vertical rod, at different rotation rates. The bottom disc is…

A: Rotation rate of bottom disk = 5300  rev/sRotation rate of top disk = 8300 rav/s Mass = 280 g Radius…

Q: A small Ferris Wheel has a mass of approximately 5 000 kg and a radius of 5 m. If it's known to have…

A: Angular momentum (L) = m r2 w

Q: A 44 kg girl is seated in the middle of a 4.6 m diameter merry-go-round. The merry-go-round disc has…

A: Given,

Q: Junior throws his mashed potatoes onto his mother's lazy susan, which has a moment of inertia I. If…

A: The initial angular momentum of potatoes = mvd,where, m is the mass of the potato, v is the…

Q: A disk of mass 3.0 kg and radius 70 cm is rotating at 2.4 rev/s. A small mass of 0.08 kg drops onto…

A: Law of Conservation of Angular Momentum According to the law of conservation of angular momentum, if…

Q: A 5 kg disk with a radius of 20 cm is spinning at 20 rpm. A clump of clay is dropped on the edge of…

A: Given Data:- Mass of the disk is md=5 kg Radius of the disk is r=20 cm=20 cm×1 m100 cm=0.20 m…

Q: A turntable with a mass of 12 kg and a radius of 1.8 meters spins at a constant angular velocity of…

A: Given, Mass of turntable, m=12kg Radius, R=1.8m Angular velocity, ω=140rpm Mass of brick, M=3kg…

Q: A 43 kg boy is seated at the edge of a 5.0 m diameter merry go round. The merry-go-round disc has a…

A: mass of boy, m = 43 kg  mass of disc, M = 90kg  radius, R = 2.5 m  Angular velocity, w = 18 rpm…

Q: A space station shaped like a giant wheel has a radius of 138 m and a moment of inertia of 4.94 x…

A: radius (r) = 138 m moment of inertia of giant wheel shaped space station (I) = 4.94×108 kg m2number…

Q: Three children are riding on the edge of a merry-goround that is 100 kg, has a 1.60-m radius, and is…

A: Given data: Mass of the marry – go – round, M=100 kg Radius, r=1.60 m Initial angular velocity,…

Q: A disk of mass 2.5 kg and radius 75 cm with a small mass of 0.08 kg attached at the edge is rotating…

A: According to law of conservation of angular momentum, the angular momentum of system of particles…

Q: A mountain biker takes a jump in a race and goes airborne. The mountain bike is travelling at 10.0…

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Q: A 3m diameter merry-go-round with a mass of 250kg is spinning at 20 rpm. John runs tangent to the…

A: diameter (d) = 3 m Mass of merry go round (m) = 250 kg Initial speed (u) = 5 msInitial angular speed…

Q: A particle moves that is defined by the parametric equations x = 3t² - 1 y = t³ — 3t² +t-3 (where x…

A: Given data: Parametric equations: x=3t2-1 y=t3-3t2+t-3   To Find:  Angular velocity at t = 2 s, ω…

Q: A 7.85 kg rock is designed to be used in a movie stunt. The rock is formed into the shape of a…

A: Given: Mass of rock, m=7.85 kg Radius of hollow sphere, r=1.65 m Height, h=6.79 m Moment of inertia…

Q: A merry-go-round is a common piece of playground equipment. A 3.0-mm-diameter merry-go-round, which…

A: The objective of the question is to find the angular velocity of the merry-go-round after John jumps…

Q: A 30-kg child is sitting 5.0 m from the center of a 500-kg merry-go-round that is rotating…

A: Given  Mass of child m=30kg  Mass of merry-go round M=500kg  Distance of child from centre r=5m…

Q: Two bugs, Buzz and Crunchy, are siting on a spinning disk. The disk of radius 3.1 m spins with an…

A: Given, radius of the disc, R = 3.1 m angular speed, ω = 90 degreesec = π2 rads

Q: A figure skater has a moment of inertia of 0.45 kg-m2. He is spinning at 315.6 rpm. He extends his…

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Q: A rotating table, with moment of inertia 29 kg·m2, is spinning at 40 rpm. A piece of clay is dropped…

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Q: A 200 g spring loaded projectile launcher is used to launch a 10 g projectile. If the spring (spring…

A: The given values are, ms=200 g=0.200 kgmp=10 g=0.010 kgk=22 N/mx=6.5 cm=0.065 m

Q: Question 2. This is a conceptual question. A disk of mass M and radius R is rotating about a fixed…

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Q: 5r2 and I have two disks. I know that disk A has a mass per unit area o given by o = disk B has o =…

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.