Ex: The kinetic energy of the earth is 2.6 × 102⁹ J. and its angular speed is 7.27 x 105 rad/s. Then calculate its moment of inertia.
Q: A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 245 kg · m2 and is…
A:
Q: A thin rod of length 1.50 m and mass 0.200 kg is to be rotated about an axis through its center of…
A: Given,Length of the rod, L = 1.50 mmass of the rod, m = 0.200 kgstarting from rest, ωi = 0…
Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…
A:
Q: The Earth makes one full rotation about its axis in approximately 24 hours, or 86,400 s. It rotates…
A: please post the remaining question again for the answer. maximum three subparts will be asnwered.
Q: A playground merry-go-round of radius R = 2.20 m has a moment of inertia I = 230 kg · m² and is…
A: Given : Radius of a merry-go-round (R) = 2.20 m Moment of inertia (I) = 230 kg.m2 Initial angular…
Q: P19. A cylinder with mass of M and radius R can rotate about a vertical, frictionless axle. A se-…
A: mass of larger cylinder = M radius of larger cylinder = R mass of smaller cylinder =m radius of…
Q: An ice dancer with her arms stretched out starts into a spin with an angular velocity of 1.00 rad/s.…
A: Given:Initial angular velocity, ω1=1 rad/sInitial moment of inertia, I1=2.48 Kg/m2Final moment of…
Q: Consider a basketball player spinning a ball on the tip of a finger. If such a player performs 1.93…
A:
Q: A rigid CD of radius 5 cm starts at rest. After 50 complete revolutions, the linear speed of the…
A:
Q: A solid sphere of mass 2 kg and diameter 15 cm rotates about its center at rate 2 rad/s. What is…
A: Given: The mass of the sphere is 2 kg. The diameter is 15 cm. The angular speed is 2 rad/s.
Q: The blades of a aircraft turbine spin with an angular velocity of 500 rad/s. The turbine begins to…
A: Answer (A) 326 rad/sec Solution We know that For rotation motion kinematics equation ω2 =…
Q: A wheel rotates through an angle of 11.4 rad as it slows down uniformly from 37 rad/s to 8.4 rad/s.…
A: Given data: Angular displacement (Δθ) = 11.4 rad Initial angular velocity (ω0) = 37 rad/s Final…
Q: A child of mass 54.3 kg sits on the edge of a merry-go-round with radius 2.2 m and mo- ment of…
A:
Q: The angular speed of a rotating platform changes from ω0 = 3.8 rad/s to ω = 7.2 rad/s at a constant…
A: Answer:- Given initial angular velocity ω0=3.8 rad/sec Final angular velocity…
Q: A hollow spherical shell (Ishell = 2/3 M R2) has a mass of 4.64 kg and radius 0.220 m. It is…
A:
Q: A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.00 x 104…
A: For calculation of acceleration and time taken by drill, we can use equations of kinematics for…
Q: The Moon has a mass of 7.35 × 1022 kg and a radius of 1.74 × 106 m. It orbits around the Earth at a…
A: Given that : The Moon has a mass of 7.35 × 1022 kg radius of moon (R)…
Q: A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 270 kg - m and is…
A: Radius, r = 1.2 mInitial moment of inertia, I1 = 270 kg.m2Angular speed, ω1 = 8 rev/minMass of the…
Q: An object's moment of inertia is 1.9 kg⋅m^2 . Its angular velocity is increasing at the rate of 3.3…
A: Given that the value of moment of inertia of object and rate of increase of angular velocity. Then…
Q: A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.20 x 104…
A:
Q: A hollow spherical shell (Ishell =2/3 M R2) has a mass 4.03 kg and radius 0.220 m. It is initially…
A:
Q: An object initially at rest at t = 0 begins to rotate with an angular acceleration of 4.1 rad / s2.…
A: CIRCULAR MOTION
Q: computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2 until…
A: Using equation of motion for angular variables, we can get the desired answers.
Q: 500 J of work is used to decrease the angular velocity of a disk from 65 rad/s to 52 rad/s. What is…
A: Given, Energy KE = 500 J Initial angular velocity of disk ω0=65 rad/s Final angular velocity of disk…
Q: A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.42 x 104…
A:
Q: An ice skater with moment of inertia, I is rotating with angular speed, W. The skater pulls her arms…
A: Given: The intial moment of inertia of the system is I. The initial angular speed is ω. The final…
Q: A skater performs a turn with arms wide open, rotating with an angular velocity ωi = 2.75 rad / s.…
A: Given,Intial angular velocity of the skater, ωi = 2.75 rad/swhen skater close his arms, his moment…
Q: A turntable (disk) of radius r= 25.0 cm and rotational inertia 0.395 kg m rotates with an angular…
A: Given:- radius of the disk = 25.0 cm rotational inertia I1 = 0.395 kg/m2…
Q: The 4.00-cm-long second hand on a watch rotates smoothly. What is its angular speed? Express your…
A:
Q: A bottle is initially spinning with an angular velocity of ω = 1.5 rad/s. Over the span of t = 3.9…
A:
Q: A child is riding a merry-go-round, which has an angular speed of 2.15 rad/s and an angular…
A: Given: The angular speed of the merry-go-round is 2.15 rad/s. The angular speed of the…
Q: A thin solid disk of mass 21.6 kg is rotating at 10.6 rad/s about an axis through its center and…
A:
Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…
A:
Q: A figure skater is spinning with an angular velocity of +10.3 rad/s. She then comes to a stop over a…
A:
Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…
A:
Q: A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.79 x 10^4…
A: initial angularvelocity = W0 = 1.79 x 104 rad/sfinal angularvelocity = W = 3.13 X 104 rad/sangular…
Q: A man on flat ice, his arms outstretched, is rotating about the vertical axis with angular speed, ωi…
A:
Q: At the instant of the figure, a 7.20 kg particle P has a position vector 7 of magnitude 1.10 m and…
A: According to guidelines , only first question is solved here. Given, m = 7.20 kg position of vector…
Q: A circular object rotates with an angular velocity ω=4.2t2 + 3.0. (Take [ω] = radians/second ). A.…
A: Given: A circular object with angular velocity rad/s To find: A. Expression for the angular…
Q: A cylindrical shaped object of mass 5.0 kg and radius 0.25 m is rotating at 11 rad/s. An object is…
A: Moment of inertia of a point particle with mass m at a distance r from the axis of rotation is given…
Q: Calculate the angular velocity of the hour-hand, of a clock from 7:00 pm to 2:00 am. State in rad/s.…
A:
Q: A computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2…
A: We have to use some basic formula here
Q: The drive chain in a bicycle is applying a torque of 1.550 N- m to the wheel of the bicycle. The…
A: Torque T = 1.550 N-mMoment of inertia I = 0.150 kg-m2
Q: Calculate the angular acceleration as a function of time. If γ = 5.05 rad/s and β = 0.845 rad/s3,…
A:
Step by step
Solved in 2 steps
