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In order to determine the mass moment of inertia of a flywheel of radius 1.5 ft, a 20-lb block is attached to a wire that is wrapped around the flywheel. The block is released and is observed to fall 12 ft in 4.5s. To eliminate bearing friction from the computations, a second block of weight 40 lb is used and is observed to fall 12 ft in 2.8 s. Assuming that the moment of the couple due to friction remains constant, determine the mass moment of inertia of theflywheel.
A cubical block of wood 0.110 m on a sideand with a density of 560 kg/m3 floats in a jar of water. Oil with a density of 750kg/m3 is poured on the water until the top of the oillayer is 0.034 m below the top of the block
A particle moves along the x axis. It is initially at the position 0.320 m, moving with velocity 0.140 m/s and acceleration -0.200 m/s2. Find the position of the particle after this time
Two trains, each having a speed of 38 km/h, are headed at each other on the identical straight track. A bird that can fly 70 km/h flies off the front of one train while they are 68 km apart and heads directly for the other train. On reaching other tr..
The track is 10.00 cm wide, 5.00 m long, and 2.78 m high, and is solid. The runway is cut such that it forms a parabola by the equation y = (x - 5)2 / 9
Show that the transformation of the horizontal pressure gradient force from z to isentropic (potential temperature ? ) coordinates is given by 1 z p M ? ? ? =? , where p M = c T +? is the socalled Montgomery streamfunction.
A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25\mu {\rm T} and a wavelength of 432{\rm nm} is traveling in the + x direction through empty space. What is the amplitude of the associated electric field
A soccer ball of mass 1.5 kg and radius 15 cm rolls down a 35degree incline that is 6.0 m high, How fast is the ball moving forward when it reaches the bottom of the incline
An iron tower in is 317 meters tall on a cold day (T = -9.9 degrees Celsius). What is its height of the tower on a hot day
water flows through a horizontal pipe of cross-sectional area 10 sq. cm. at one section the cross-sectional area is
The gauge pressure in your car tires is 2.40 x 105 N/m2 at a temperature of 35.0°C when you drive it onto a ferry boat to Alaska. What is their gauge pressure later
An ac generator producing 20 V (rms) at 200 rad/s is connected in series with a 50-%uF057 resistor, The rms voltage (in volts) across the capacitor is
a block of mass m collides elastically with a block of mass m. before the collision m is moving with velocity vx v and
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