A 20 -kg solid disk (I = ½ Mr²) rolls on a horizontal surface at the rate of 4 m/s .Compute its total Kinetic Energy.

Q: Suppose that a copper sleeve of inner radius 1.75 cm and outer radius 1.85 cm is to be cast. To…

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Q: USE VECTOR NOTATIONA centrifuge in a medical laboratory rotates with an angular speed of 3,600 rpm…

A: Given :Initial angular speed = 3600 rpmFinal angular speed = 0 rpmAngular displacement = 60…

Q: Radius of Earth, RE: 6,3781366E+06 m Mass of Earth, ME: 5,9721426E+24 kg  A spacecraft is in…

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Q: 1. You are told that a basketball player spins the ball for 2.5 s with an angular acceleration of…

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Q: Suppose you are standing within the rim ofa circular space station, in outer space. The rim revolves…

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Q: An ultracentrifuge accelerates from rest to 100,000 rpm in 3.00 min. (a) What is its angular…

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Q: A projectile is shot at an inclination of 450 from the ground with a speed of 250 mps. Determine the…

A: Given: θ=45°t=25 su=250 m/s

Q: The radius of the earth's very nearly circular orbit around the sun is 1.5 x 1011 m. Part A Find the…

A: Radius of Earth's orbit (R) = 1.5×1011 m Time period of Earth (T) = 365 days Using consversion…

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 centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched…

A: Given data: Angular speed, ωo = 3550 revmin Number of revolutions , r = 48 Comes to rest ⇒ω = 0

Q: An ice skater starts to spin with an angular velocity of 2 rotations per second, when she moves her…

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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: uppose that a bike is being peddled so that the front gear with radius r=4.0 inches, turning at a…

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Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,500 rev/min. When switched…

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Q: 1) The tires on a new car have a diameter of 2 ft and have a 60,000-mile warranty. a) Determine the…

A: diameter, d = 2 ft  radius,1 ft = 0.3048 m  distance, D = 60,000 miles = 96560640 m  (a) The number…

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,450 rev/min. When switched…

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Q: In a DVD player the centripetal acceleration is measured to be 100 m/s^2 , at a point that is .02 m…

A: The centripetal acceleration at a point at r distance on a disc  from its center can be expressed as…

Q: A bug on a bicycle wheel moves in a circle through 40 r radians. If the radius of the wheel is 0.6…

A: θ = 40π radians Radius of the wheel (r) = 0.6 m

Q: Suppose you are standing within the rim of a circular space station, in outer space. The rim…

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Q: A sweet potato pie in a 8.00 in diameter plate is placed upon a rotating tray. Then, the tray is…

A: Distance travelled in 1 revolution is given byd=2πr=2π×8.00in=50.27 innow angular distance=258…

Q: 5. Compute the rotational KE of a 25-kg wheel rotating at 6 rev/s if the radius of gyration of the…

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Q: A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center (see figure…

A: Radius, r = 14 m Velocity, v = 7 m/s

Q: A rock tied to the end of string swings at a constant angular rate. If you are told that the string…

A: Put the concept of Centripetal Force here and then solve for omega.

Q: The tip of a pinwheel is 0.24 m from the center. The pinwheel spins 3 times each second. a) Draw a…

A: Given data: Radius, r = 0.24m Frequency, f = 3 times/sec   Solution: Write the equation of circular…

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: The angular velocity of a rotating rigid body increases from 250 to 1,800 rev/min in 115 s. (Enter…

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Q: The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.68 m and 1.01 m,…

A: vmain=d2ω=7.68 m2453 rev/ min0.1047 rad/s rev/ min=182 m/svtail=dtail2ωtail =1.01 m24120 rev/…

Q: A centrifuge in a medical research laboratory rotates at an angular speed of 3,600 rev/min. When…

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Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,400 rev/min. When switched…

A: Given data The initial speed is, ωo=3400 rev/min The displacement is θ=52.0 rev The final speed is…

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,800 rev/min. When switched…

A: ωi=Initial angular velocity=3800×2π60=3803π rad/sωf=Final angular velocity=0θ=Angular…

Q: Shown below is the velocity vector for an object that is speeding up. Identify which of the other…

A: Given Data: The figure given in the problem represents the velocity vector for an object making 80°…

Q: An electric grinder is spinning CCW at 30 rev/s when the power is turned off and the grinder slows…

A: Given------ Initial angular velocity = 30 rev/ sec Time = 83 sec We need to calculate---- number of…

Q: The angular position of a rotating object as a function of time is given below e-5.5-4.8 4.3t+d Here…

A: Given value--- angular position = 5.5 t3 + 4.8 t2 - 4.3 t + d. We have to find--- average angular…

Q: A fire hose held near the ground shoots water at a speed of 12.5 m/s. At what angle(s) should the…

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Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,800 rev/min. When switched…

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Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched…

A: Rotational kinematics equations are : 1) ωf=ωi+αt2) θ=ωit+12αt23) ωf2=ωi2+2αθ where, ωi is initial…

Q: We want to determine a rotation rate that will create a radial acceleration equivalent to…

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Q: A bicycle wheel with a radius of 0.295 m is spinning clockwise at a rate of 80 rpm. a) Calculate…

A: Given:The radius of the bicycle is 0.295 m. The angular speed of the bicycle is 80 rpm.

Q: Rotational Spinning A horizontal circular disc of radius 0.8065 m rotates around its own axis (see…

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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.