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A Flywheel (I = 100kg(m2 )) rotating at 500rev/min is brought to rest by friction in 2.0 minutes. What is the frictional torque on the fly wheel?
Suppose that a person singing in the shower is producing1.34 mW of sound power. Some of the soundis reflected from the floor and ceiling. The intensity of this reflected sound at a distance of 3.01 mfrom the source is 4.40 10-6 W/m2.
What is the average translational kinetic energy of nitrogen molecules at 1400 K
A bird stands on a dc electric transmission line carrying 2500 A, What is the potential difference between the bird's feet
One of the mooring lines of USS BOXER (LHD-4) is under a tension of 4500 N and is set into resonance by the vibration of a CHT pump. What is the period of the 2nd harmonic
the sound from a truck moving at 17.00 m/s reflects from a cliff and is heard by an observer on the truck. What is the change in frequency for a wave
A solid cylindrical disk has a radius of 0.14 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. What is the mass of the disk
A 19.0 -kg box is released on a 37 incline and accelerates down the incline at 0.30 m/s^2. Find the friction force impeding its motion
a 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. as an approximation assume a
A 2kOhm resistor and 400mH inductor are connected in series to a 1300Hz generator with an rms voltage of 15V. what is the rms current in the current
A tennis ball with a velocity of +7.6 m/s to the right is thrown perpendicularly at a wall. what is the average acceleration of the ball while it is in contact with the wall
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick.
two circular disks spaced 0.50mm apart form a parallel-plate capacitor. transferring 1.80x109 electrons from one disk
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