ent of inertia of 16 kg m². As it turns through 2.0 rev, its angular velocity increases from 7.0 rad/s to 9.0 rad/s. Assuming the net torque is constant, what is that net torque? 130 N m O 32 N m O 20 Nm O 2.5 N m O 41 N m . ♦

ent of inertia of 16 kg m². As it turns through 2.0 rev, its angular velocity increases from 7.0 rad/s to 9.0 rad/s. Assuming the net torque is constant, what is that net torque? 130 N m O 32 N m O 20 Nm O 2.5 N m O 41 N m . ♦

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter12: Rotation I: Kinematics And Dynamics

Section: Chapter Questions

Problem 54PQ

See similar textbooks

Related questions

Q: Reading glasses of what power are needed for a farsighted person whose near point is 125 cm, so that…

Q: A 1.2-kg block is held against a spring of force constant 1.0 x 104N/m, compressing it a distance of…

A: The given data we have: Mass of the block: 1.2kg Force constant of the spring: 1.0×104N/m Distance…

Q: 5. Two similar coils of radius R are lying concentrically with their planes at right angles to each…

A: Given, Two concentric coils of radius, R carrying current, I and 2I

Q: See the attached figure this problem. A charge of 8.61 x 10^6 C moves to the right as shown through…

A: Given Data, Charge (q)=8.61×106 C Magnetic field strength B=1.01 T Electric field strength…

Q: The period of a pendulum is proportional to the square root of its length. A 2.5-m- long pendulum…

Q: is a square of side 18 c form magnetic field directed perpendicular to t e coil is turned on. If the…

A: Induced EMF is the change in potential difference due to a change in the magnetic flux of a coil,…

Q: 21. A 55.0-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rope, the opposite…

Q: Light of wavelength 322 nm is incident on an uncharged metal sphere of diameter 12.2 cm. If the work…

Q: A 16-kg block is attached to a cord that is wrapped around the rim of a flywheel of diameter 0.40 m…

Q: Now you have a nucleus with 7 protons at x = 4.1 Angstroms on the x-axis. How much work would it…

Q: An athlete can shoot an arrow at a speed equal to 4 times his speed while running. At what angle…

A: Given that the athlete can shoot arrow 4 times his speed while running. We need to calculate the…

Q: One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The…

Q: Two crates, one with mass m₁=5.5 kg and the other with mass m₂=10 kg, sit on the frictionless…

Q: kg ball and a 2.0 kg ball are connected by a 0.90-m-long rigid, massless rod. The rod is rotating cw…

A: Givenm1=1 kgm2=2 kgd=0.9 mω=25 rpm=25×2π60 rad/s

Q: What is 91 miles per hour in units of meters per second? Give your answer rounded to 1 digit after…

A: Given, 91 miles per hour We need to, Convert 91 miles per hour in units of meters per second.

Q: 1. A tow rope, parallel to the water, pulls a water skier directly behind the boat with constant…

Q: speaker is producing spherically symmetric sounds with a total power of 88.5 W. If the speaker is…

Q: A gas is heated and allowed to expand such that it follows a horizontal line path on a pV diagram…

Q: - A horizontal force is applied to a 4.0 kg box. The box starts from rest moves a horizont- 20…

Q: The balls A and B in the figure are attached to stiff rods of negligible weight. Ball A is released…

A: Answer

Q: 10.A ball of 1 kg is shot vertically upward with 20 m/s from the ground. What is the kinetic energy…

Q: A wind turbine is set up in a farming field, the wind speed vis 5.2 m/s. Assume that the available…

Q: 1. Roller Coaster Many roller coasters use brakes midway through the ride so that the coaster…

Q: 21. Which one of the following expressions determines the minimum speed that the car must have at…

A: Given data : Mass of the car is M Radius of the vertical circle is R

Q: Given a block vibrating in simple harmonic motion at a small amplitude attached to a spring of…

Q: A pitcher throws a curveball that reaches the catcher in 0.68 s. The ball curves because it is…

A: Given Data, Time interval (∆t)=0.68 s Average angular velocity (ω)=330 rev/min

Q: A small plane tows a glider at constant speed and altitude. If the plane does 2.00 x 105J of the…

Q: An object has a height of 14 cm. It is also 12 cm in front of a concave lens. If the image distance…

Q: Conceptual Example 2 provides some relevant background for this problem. A jet is circling an…

Q: A machine has an 700 g steel shuttle that is pulled along a square steel rail by an elastic cord.…

Q: A ball of m=1 kg is tied to the other end of an 8 m long rope hanging from the ceiling. The ball…

Q: The atoms of an FCC lattice are hard spheres touching the surfaces of the nearest neighbors. If…

A: the lattice constant of an fcc lattice is a=22ra=22r the(110) plane in an fcc lattice is given by…

Q: Angular Quantities: What is the angular speed, in rad/s, of a flywheel turning at 813.0 rpm? 63.84…

A: Given data The number of rotational, N=813.0 rpm

Q: A spring is hung from the ceiling. A 0.449-kg block is then attached to the free end of the spring.…

Q: A copper wire is carrying 5.0 A of current. Given that the electric field between the ends of the…

Q: 2. Each of the two identical shafts is attached to a rigid wall at one end and supported by a…

A: We have to answer one question per post. Please post question 1 in other post

Q: A new record for running the stairs of the Empire State Building was set on February 3, 2003. The 86…

Q: The drawing shows a chain-saw blade. The rotating sprocket tip at the end of the guide bar has a…

Q: Your object has mass 20.3 kg, and you ve separated the boxes of protons and electrons by a distance…

Q: What is the distance from the center of one Si atom to the center of its nearest neighbor if the…

A: Given, Lattice constant = 4.25 A° We need to find, Nearest neighbor distance =?

Q: 1. A 0.14 k-g pine cone falls 16m to the ground, where it lands at a speed of 13 m/s. (a) With what…

Q: Rotational Kinetic Energy: A disk and a hoop of the same mass and radius are released at the same…

Q: The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates…

Q: A bridge of length 50.0 m and mass 7.60 * 10^4 kg is supported on a smooth pier at each end as shown…

Q: When played in a certain manner, the lowest resonant frequency of a certain violin string is 410 Hz.…

Q: 2.0 kg object is moving to the right with a speed of 1.0 m/s when it experiences the force shown.…

Q: Once more, please refer to the figure. This time the charge is 2.01 x 10^-6 C, the magnetic field…

Q: The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: R 23 n² E…

Q: Part B You should have found that the gravitational force is a linear restoring force. Consequently,…

Q: A shell is shot with an initial velocity 0 of 27 m/s, at an angle of 0o = 56° with the horizontal.…

Concept explainers

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.

Question

A wheel has a moment of inertia of 16 kg · m². As it turns through 2.0
rev, its angular velocity increases from 7.0 rad/s to 9.0 rad/s. Assuming
the net torque is constant, what is that net torque?
O 130 N
032 N
020 N m
O 2.5 N
041 N
m
m
E E E
m
m

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given data

VIEW

Step 2: Calculation for angular acceleration.

VIEW

Step 3: Calculation for torque.

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 17 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

An electric sander consisting of a rotating disk of mass 0.7 kg and radius 10 cm rotates at 15 rev/sec. When applied to a rough wooden wall the rotation rate decreases by 20 . (a) What is the final rotational kinetic energy of the rotating disk? (a) How much has its rotational kinetic energy decreased?
A rope of negligible mass is wrapped around a 225 kg solid cylinder of radius 0.400 m. The cylinder is suspended several meters off the ground with its axis oriented horizontally, and turns on that axis without friction, (a) If a 75.0-kg man takes hold of the free end of the rope and falls under the force of gravity, what is his acceleration? (b) What is the angular acceleration of the cylinder? (c) if the mass of the rope were not neglected, what would happen to the angular acceleration of the cylinder as the man falls?
A uniform cylindrical grinding wheel of mass 50.0 kg and diameter 1.0 m is turned on by an electric motor. The friction in the bearings is negligible. (a) What torque must be applied to the wheel to bring it from rest to 120 rev/min in 20 revolutions? (b) A tool whose coefficent of kinetic friction with the wheel with a force of 40.0 N. What torque must be supplied by the motor to keep the wheel rotating at a constant angular velocity?
Find the net torque on the wheel in Figure P10.23 about the axle through O, taking a = 10.0 cm and b = 25.0 cm. Figure P10.23
A solid aluminum sphere of radius R has moment of inertia I about an axis through its center. Will the moment of inertia about a central axis of a solid aluminum sphere of radius 2Rbe (a) 2I, (b) 4I, (c) 8I. (d) 16I. or (e) 32I?
A turntable (disk) of radius r = 26.0 cm and rotational inertia0.400 kg m2 rotates with an angular speed of 3.00 rad/s arounda frictionless, vertical axle. A wad of clay of mass m =0.250 kg drops onto and sticks to the edge of the turntable.What is the new angular speed of the turntable?
A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is rotating at 10.0 rev/min about a frictionless, vertical axle. Facing the axle, a 25.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round?
A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/s2. (a) How long does it take to come to rest? (b) How many revolutions does it make before stopping?
A proton is accelerated in a cyclotron to 5.0106m/s in 0.01 s. The proton follows a circular path. If the radius of the cyclotron is 0.5 km, (a) What is the angular momentum of the proton about the center at its maximum speed? (b) What is the torque on the proton about the center as it accelerates to maximum speed?
The angular position of a rod varies as 20.0t2radians from time t=0 . The rod has two beads on it as shown in the following figure, one at 10 cm from the ratation axis and the other at 20 cm from the rotation axis. (a) What is the instantaneous angular velocity of the rod at t=5s ? (b) What is the angular acceleration of the rod? (c) What are the tangential speeds of the beads at t=5s ? (d) What are the tangential acceleration of the beads at t=5s ? (e) What are the centripetal accelerations of the beads at t=5s ?
A horizontal disk with moment of inertia I1 rotates with angular speed 1 about a vertical frictionless axle. A second horizontal disk having moment of inertia I2 drops onto the first, initially not rotating but sharing the same axis as the first disk. Because their surfaces are rough, the two disks eventually reach the same angular speed . The ratio /l is equal to (a) I1/I2 (b) I2/I1 (c) I1/( I1 + I2) (d) I2/( I1 + I2)
A bug of mass 0.020 kg is at rest on the edge of a solid cylindrical disk (M=0.10kg,R=0.10m) rotating in a horizontal plane around the vertical axis through its center. The disk is rotating at 10.0 rad/s. The bug crawls to the center of the disk. (a) What is the new angular velocity of the disk? (b) What is the change in the kinetic energy of the system? (c) If the bug crawls back to the outer edge of the disk, what is the angular velocity of the disk then? (d) What is the new kinetic energy of the system? (e) What is the cause of the increase and decrease of kinetic energy?