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A bowling ball is thrown onto a lane with a backspin 0 and forward velocity v0. The mass of the ball is m, its radius is r, its radius of gyration is kG, and the coefficient of kinetic friction between the ball and the lane is (mu)K. Assume that the mass center G is at the geometric center of the ball. For a 14 lb bowling ball with r = 4.25 inches, kG = 2.6 inches, (omega)0 = 10 rad/sec, and v0 = 17 mph, determine the time it takes for the ball to start rolling without slip and its speed when it does so. In addition, determine the distance it travels before it starts rolling without slip. Assume (mu)K = 0.10.
A dockworker applies a constant horizontal force of 71.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 11.5 in a time 5.00 . what is the mass of the ice block?
the 3000 lb car and the 4600 lb tow truck are stationary. the muddy surface on which the car rest exerts a negligible friction force on the car. what is the tension in the tow cable.
the tank has a 180mm diameter and 12 mm wall thickness. knowing that the tank contains compressed air under a pressure of 8 Mpa, determine the magnitude t of applied torque for which the maximum normal stress in tank is 75 Mpa.
find the stresses in a point of a rod that is fixed to a wall and have a load in the edge or better known as a cantilever.
A turbine takes in 2 kg/s neon at 27C and 200 kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K. Find the exit velocity of the neon.
The total force Fa + Fb exerted on the shelter is in the direction parallel to the line L and it's magnitude is 400 lb. Graphically determine the magnitudes of Fa and Fb.
Calculating electrical power from a geothermal Resource, A geothermal well is producing 9000kg/second from a hot water basin at 200 ºC [enthalpy of 800 KJ/Kg].
the snowmobile is traveling at 10m/s when it leaves the embankment at A.determine the speed at which it strikes the ground at B and its maximum acceleration along the trajectory AB.
Determine heat flow, Heat flow through a uniform wall will: a) increase as the thermal resistance increases b) increase as the thickness of the wall increases
You are to supply a design for an engine room crane which will provide maintenance support for the main engine. Your design should include the rails the crane will sit on.
The number-average molecular weight of a polypropylene is 1100000 g/mol. Compute the degree of polymerization.
A spur gear has 48 teeth with a diametral pitch of 8 and a pressure angle of 20 deg. The face width is 0.75 inches. If the gear is transmitting 25 HP at 250 rpm
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