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A: Given : τ = 170 N.m W = 4715 J Ki = 1320 J
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A: Given data: Initial angular velocity (ωi) = 150 rad/s Final angular velocity (ωf) = 450 rad/s Time…
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Q: Find the rotational kinetic energy of a spinning (not rolling) bowling ball that has a mass of 12 kg…
A: mass of bowling ball (m) = 12 kg Radius of ball (r) = 0.20 m Velocity (v) = 5 m/s
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Q: A bowling ball of mass 7.15 kg is rolling at 2.50 m/s along a level surface. (a) Calculate the…
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Q: uniform ball of radius 0.1 m and mass 1 kg is released from rest on a no-slip surface, as shown in…
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Q: e One way to store energy is in the rotational motion of a flywheel, and some have proposed using…
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A: Given data: Initial angular velocity (ω0) = 12 rad/s Time (t) = 10.0 s Final angular velocity (ω) =…
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Q: The puck in the figure below has a mass of 0.186 kg. Its original distance from the center of…
A: Given: mass of puck, m=0.186 kg Initial radius, ri = 40 cm Initial speed of rotation, v=85 cm/s…
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A: Given values:- Coefficient of kinetic friction,(μk)=0.156 ----(1) Mass of the ball,(m)=5.30 kg…
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The mass of the wheel of a pull cord wheel toy is 40 g and its radius is 3.5 cm. Assume that all the mass of the wheel is at its radius. The pull cord is 30 cm and is pulled with a force of 24 N. Determine the
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- A constant torque of 3.4 N.m is applied to an object , which undergoes 28 revolutions. Calculate the work done in Joules, with a single digit precison. Your Answer: AnswerA simple wheel has the form of a solid cylinder of radius r with a mass m uniformly distributed throughout its volume. The wheel is pivoted on a stationary axle through the axis of the cylinder and rotates about the axle at a constant angular speed. The wheel rotates n full revolutions in a time interval t.ANSWER ALL FOR UPVOTE. INCOMPLETE WORK NO UPVOTE. THANK YOU
- A machine has a rod-shaped steel blade that rotates about its center. The mass of the blade is 0.75 kg and its length is 0.75 . Calculate its rotational kinetic energy when the blade has reached its operating speed of 4000 rpm.The puck in the figure below has a mass of 0.260 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 90.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. (Hint: Consider the change of kinetic energy of the puck.)A turn table starts from 10 rad/s of angular velocity and slows down to a stop in 5.0 s. Find the total angle turned during this time, in rad. Hint: use rotational kinematics formula. Assume initial angle and final angular velocity as zero.
- A hollow sphere rolls without slipping down a ramp that is 3.5 m long. the ramp is inclined at an angle of 20˚ with the horizontal. Use the conservation of energy to find the speed of the sphere at the bottom of the slope if it starts from rest. ( I= 2/3 m R2 )A frictionless pulley has the shape of a uniform solid disk of mass 2.90 kg and radius 10 cm. A 1.30 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (the figure (Figure 1)), and the system is released from rest. How far must the stone fall so that the pulley has 3.40 J of kinetic energy? What percent of the total kinetic energy does the pulley have?The SI unitfor rotational kinetic energy J kg ^2 none W
- Arithmetic question. Write only the final value of the answer. Suppose you did the rotational dynamics labs with a 200g solid sphere. The sphere was placed at rest at the 100cm mark on the track which is inclined at 150 angle with the table. What is the translational kinetic energy in (J) of the sphere as it leaves 0 mark of the track? Write your answer with TWO decimal places.A 100 g disk with a diameter of 10 cm rotates about an axis through its center of mass with 0.2 J of rotational kinetic energy. What is the speed of a point on the rim of the disk?