QUESTION 22 If an object has a rotational kinetic energy of 50.0 J and an angular momentum of magnitude of 8.85 kg.m2/s, what is its angular speed, in units of rad/s?
Q: The angular acceleration of a wheel is a = 7.0t4 - 7.0t², with a in radians per second-squared and t…
A: The objective of the question is to find the expressions for the angular velocity and the angular…
Q: A hollow, iron sphere has a radius R = 0.5 m and mass M = 11 kg. IT rotates at a constant angular…
A: Angular momentum is thd product of moment of inertia and angular speed. So we have to first…
Q: A uniform disk of mass 2.31 kg has a radius of 0.100 m and spins with a frequency of 0.550 rev/s.…
A: Angular momentum of the uniform disk is L=Iω=12mr2ω
Q: A wheel with a radius of 0.33 m and rotational inertia 2.0 kgm2 spins on an axle with an angular…
A: Given:- The radius of the wheel r= 0.33 m rotational inertia I=2.0 kgm2 an angular speed of…
Q: A thin disk rotates about an axis that goes through its center perpendicular to its plane. The…
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Q: During a very quick stop, a car decelerates at 6.4 m/s2. Assume the forward motion of the car…
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Q: A figure skater is spinning with an angular velocity of +17.5 rad/s. She then comes to a stop over a…
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Q: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…
A: Given Data:- Mass of the merry-go-round is M=120 kg Radius of the merry-go-round is R=1.80 m Initial…
Q: An object located on the edge of a merry-go-round a distance of 4.65 cm form the center. What's the…
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Q: The angular acceleration of a wheel is a = 7.0t4 - 7.0t², with a in radians per second-squared and t…
A: The objective of the question is to find the expressions for the angular velocity and the angular…
Q: playground merry-go-round with a mass of 110 kg and a radius of 1.8 m is rotating with a frequency…
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Q: The angular acceleration of a wheel is a = 7.0t4 - 7.0t², with a in radians per second-squared and t…
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Q: What constant angular acceleration is required to reduce an object's angular velocity from 37.8…
A: See below
Q: A hollow spherical shell (Ishell = 2/3 M R2) has a mass of 4.64 kg and radius 0.220 m. It is…
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Q: spherical shell with a mass of 1.76 kg and a radius of 0.37 m is rolling acro vel ground with an…
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Q: The angular acceleration of a wheel is a = 7.0t4 - 7.0t², with a in radians per second-squared and t…
A: The objective of the question is to find the expressions for the angular velocity and the angular…
Q: A person is riding a bicycle, and its wheels have an angular velocity of 17.06 rad/s. Then, the…
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Q: A playground merry-go-round with a mass of 145 kg and a radius of 1.9 m is rotating with a frequency…
A: mass of merry go round = 145 kg radius = 1.9 m angular velocity = 0.56 rev/sec mass of child = 24 kg…
Q: The angular acceleration of a wheel is α = 9.0t4 – 7.0t2, with α in radians per second-squared and t…
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Q: A 0.25 g uniform rod 12 cm long connects two solid spheres. The first ball has a mass of 0.5 g and a…
A: Given information: The mass and radius of the spheres: first ball:M1=0.5 g=5×10-4 kgR1=10 cm = 0.1…
Q: A uniform, solid, cylindrical flywheel of radius 1.24 m and mass 16.0 kg rotates at 2.32 rad/s. What…
A: Given:- A uniform solid, cylinder flywheel of radius r = 1.24 m The mass of the flywheel is m = 16…
Q: 008 The tape in a videotape cassette has a total length 279 m and can play for 2.2 h. As the tape…
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Q: kinetic energy a
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Q: 2. A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.50 × 104…
A: According to question --- Given data--- Initial angular speed = 1.5 × 104 rad/sec. Final angular…
Q: A uniform, solid flywheel of radius 1.4 m and mass 15 kg has an angular momentum of 60 m² What is…
A: Given: The mass of the flywheel is 15 kg. The radius of the flywheel is 1.4 m. The angular momentum…
Q: The angular acceleration of a wheel is a = 8.0t“ - 6.0t2, with a in radians per second-squared andt…
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Q: 54. A cylinder with rotational inertia 11=2.0kg m2 rotates clockwise about a vertical axis through…
A: Given: I1 = 2.0 kg.m2ω1 = +5.0 rad/s(clockwise)I2 = 1.0 kg.m2ω2 =- 8.0 rad/s(counterclockwise)
Q: Problem 3: Modern wind turbines generate electricity from wind power. The large, massive blades…
A: The expression for angular momentum(L) of the wind turbine, is given as, L = I×ω, where 'I' is the…
Q: changes by
A: Given: To find the time period of torque which applies to the wheel as,
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- A golf club is swung with an average angular acceleration of 2 rad/s2. What is the angular velocity when it strikes the ball at the end of a 1 second swing? 0.5 rad/s 1 rad/s 1.5 rad/s 2 rad/s QUESTION 2 2 rad/s is 114.6 deg/s 171.9 deg/s 57.3 deg/s 229.2 deg/sA figure skater performs a twisting jump. She rotates around her longitudinal axis 2 times in 0.65 s. What was her average angular velocity in radians/second? A 720rad/s B 19.3rad/s C 4? rad/s D 9.67 rad/s E 1107 rad/sA solid cylindrical disk has a radius of 0.12 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 100 rad/s2. What is the mass of the disk? kg
- At the instant of the figure, a 7.20 kg particle P has a position vector of magnitude 1.10 m and angle e, = 40.0° and a velocity vectors lie in the xy plane. About the origin, what are the magnitude of (a) the angular momentum of the particle and (b) the torque acting on the particle? vector v of magnitude 1.80 m/s and angle 02 = 31.0°. Force F ,of magnitude 2.70 N and angle 03 = 31.0° acts on P. All three 0s 02 Units i (a) Number Units i (b) NumberA pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotating beam sweeps across the earth, and the earth receives a pulse of radio waves. For one particular pulsar, the time between two successive pulses is 0.027 s. Determine the average angular speed (in rad/s) of this pulsar. rad/sA wheel rotates clockwise about its central axis with an angular momentum of 600Kg.m 2 /s.At time t= 0, a torque of magnitude 50N.m is applied to the wheel to reverse the rotation. If the same torque is maintained, at what time will the angular momentum be counter-clockwise of 600Kg.m 2 /s?
- A hollow disk with a moment of inertia of 0.5 kg-m2 experiences a net torque of 30 m-N. What is the disk's angular acceleration? 60 rad/s/s 0.02 rad/s/s 30 rad/s/s 15 rad/s/sA playground merry-go-round with a mass of 135 kg and a radius of 1.7 m is rotating with an angular frequency of 0.48 rev/s. m1 = 135 kgm2 = 21 kgωi = 0.48 rev/sr = 1.7 m What is the magnitude of its angular velocity, in radians per second, after a 21 kg child gets onto it by grabbing its outer edge? The child is initially at rest.The angular speed of a rotating platform changes from W equals 2.8 rads/S to W equals 6.8 rad/S at a constant rate as a platform moves through an angle 5.5 rad. The platform has a radius of R equals 28 cm w0=2.8rad/s w=6.8rad/s 0=5.5 radians r=28cm calculate the angular acceleration of the platform a in rad per second squared calculate the tangential acceleration, aT in meters per second squared of a point on the surface of the platform at the outer edge
- An ice dancer with her arms stretched out starts into a spin with an angular velocity of 2.9 rad/s. Her moment of inertia with her arms stretched out is 2.84kg m. What is the difference in her rotational kinetic energy when she pulls in her arms to make her moment of inertia 1.67 kg m2? (Answer in J)A 10 kg wheel with a 0.4 meter radius is rotating at 4 rad/s. A 8 Nm torque is applied to the wheel. The rotational inertia of the wheel is 0.48 kgm2. The angular momentum of the wheel changes by 4 kg*m2/s. How long was the torque applied to the wheel.A playground merry-go-round has a mass of 133kg and a radius of 1.82m and it is rotating with an angular velocity of 0.424rev/s. What is its angular velocity after a 29-kg child gets onto it by grabbing its outer edge? The child is initially at rest.