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Write an expression for the torque required to rotate the cylinder surrounded by a fluid as shown in Fig. 6.3.
(a) Neglect the effects of h.
(b) Include the effects of h.
figure 6.3
A mass less spring hangs from the ceiling with a 10 kilogram mass attached to it. Compute how much does springs potential energy increase
A damped mass-spring system oscillates at 275-Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 3.20cm and the energy of the oscillating system is then 32 J.
The 1 kg standard body has an acceleration of 2.00 m/s2 at 43° to the positive direction of the x axis. What is the net force in unit-vector notation
At t=0, a grinding wheel has an angular velocity of 27.0rad/s. It has a constant angular acceleration of 33.0rad/s2until a circuit breaker trips at timet= 1.80s. From then on, it turns through an angle 440 rad as it coasts to a stop at constant angul..
As you sit facing your computer screen, electrons are directed from a source at the back of the computer toward you and are deflected by a magnetic field. Which direction must the magnetic field be oriented in order to direct the electrons to the ..
A 2.4mm -diameter sphere is charged to -4.5nC . An electron fired directly at the sphere from far away comes to within 0.32mm of the surface of the target before being reflected. What was the electron's initial speed
fred got into his motorboat and motored for 12.5 km at a bearing of 30 degrees north of east. he then abruptly made a
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A compass originally points North; at this location the horizontal component of the Earth's magnetic field has a magnitude of 2e-5 T. A bar magnet is aligned East-West, pointing at the center of the compass.
Two identical speakers are separated by 3.4m and produce sound of different frequencies equally in all direction. Determine the sound level in decibels at the point that is a midway between the speakers
A block of mass, m=5.0 kg is pulled along a rough horizontal surface by a rope. The tension in the rope is 40 N, and the coefficient of kinetic friction between the block and the surface is, .25. If the block travels a distance of 4.5 m along the ..
Determine what is the absolute pressure at a depth of 10 meter in a lake, Determine what is the gauge pressure
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