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1. A bowling ball has a mass of 4.0 kg, a moment of inertia of 1.6x10 to the - 2nd kg.m2 and a radius of .20m. If it roll down a horizontal lane without slipping at a linear speed of 4.0 m/s, what is its total kinetic energy?
2. A gyroscope has a moment of inertia of .14 kg.m2 and has an initial angular velocity of 15 rad/s. Friction in the bearing causes its velocity to reduce to zero in 30s. What is the value of the frictional torque?
3. A rotating flywheel can be used as a method to store energy. If it is required that such a device be able to store up to a maximum of 10x10 to the 5th J when rotating at 400 rad/s, what moment of inertia is required?
Suppose that the separation between two speakers A and B is 4.40 m and the speakers are vibrating in-phase, What is the largest possible distance between speaker B and the observer,
The figure below shows particles 1 and 2, each of mass m, attached to the ends of a rigid massless rod of length L1 + L2, with L1 = 17 cm and L2 = 77 cm. The rod is held horizontally on the fulcrum and then released.
The magnetic flux through one turn of a 54-turn coil of wire is reduced from 40.3 Wb to 5.6 Wb in 0.10 s. Find the total resistance of the wire
the maximum strength the magnetic field in an electromagnetic wave is 4.8 x 10-6 t. what is the maximum strength of the
If she is served 200 of coffee at 84 in a well-insulated container, how much ice at 0 should she add to obtain a final temperature of 31.
An airplane in a wide sweeping "outside" loop can create zeto gees inside the aircraft cabin. What must be the radius of the curvature of the flight path
What is the compacitance of a parallel-plate capacitor with area 3.8_dm^2 if the seperation between the plates is 0.54_m
Show that the difference of the stream functions between two streamlines is the ?ow rate q per unit depth between the two streamlines, i.e., q ¼ c2 - c1.
In the system shown in the figure, suppose the block has a mass of 3.3 , the spring has a force constant of 450 , and the coefficient of kinetic friction between the block and the floor is 0.19. Find the work done on the block by the spring
A point source emits sound waves with a power output of 120 W. At what distance will the decibel reading be 140 dB, which is noise level of a loud indoor rock concert
Consider three containers of the same volume that are thermally insulated (no heat is transferred) from each other, but are connected by thin pipes that allow gas to pass freely from one to another.
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
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