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A diver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.6 kg· m2. He then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. The net external torque acting on the diver is zero. What is his moment of inertia in the tuck position?
Consider a heat exchanger. Air is used to heat the liquid water. The entering air temperature is 350deg C and entering water temperature is 20degC. The water is heated to saturated vapor at 1.5MPa. The mass flow rate of air and water are 30kg/min ..
a professional skiers initial acceleration on fresh snow is 90 of the acceleration expected on a frictionless inclined
Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, Calculate the magnitude of the frictional force acting on M1
A 8.50-kg block of ice, released from rest at the top of a 1.41--long frictionless ramp, slides downhill, reaching a speed of 2.71 at the bottom. What is the angle between the ramp and the horizontal
Certain neutron stars (extremely dense stars) are believed to berotating at about 100 rev/s. If such astar has a radius of 13 km, what must beits minimum mass so that material on its surface remains in placeduring the rapid rotation?
A 3.0 m tall, 54 cm diameter concrete column supports a 190,000 kg load. By how much is the column compressed
life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. samples
Determine the maximum magnetic flux through an inductor connected to a standard outlet (?Vrms = 120 V, f = 60.0 Hz)
Two automobiles, each of mass 1.500*10^3 kg, travel in the same direction along a straight road. find the translational kinetic energy of the center of mass
the height of a typical am radio stations tower is one-fourth of the radio wavelength. how high should the tower be for
A piñata of mass 3.50 kg is attached to a string tied to a hook in the ceiling. What is the work done by gravity by the time the string is in a vertical position for the first time
In the Soapbox Derby, young participants build non-motorized cars with very low-friction wheels, What is the maximum possible acceleration of a car moving down this stretch of track
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