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The flywheel of an automobile engine, which is rigidly attached to Problems the crankshaft, is equivalent to a 400-mm-diameter, 15-mm-thick steel plate. Determine the magnitude of the couple exerted by the flywheel on the horizontal crankshaft as the automobile travels around an unbanked curve of 200-m radius at a speed of 90 km/h, with the flywheel rotating at 2700 rpm. Assume the automobile to have
(a) a rear-wheel drive with the engine mounted longitudinally,
(b) a front-wheel drive with the engine mounted transversely. (Density of steel = 7860 kg/m3
) On a horizontal frictionless surface, a block of mass M is sliding along on constant velocity v. A block of mass m lands on top of the original block. What is the velocity of the new system
a system consisting entirely of electrons and protons has a net charge of 1.95 10-15 c and a net mass of 4.43 10-23 kg.
The tension in a copper wire of length 0.5 m with two ends fixed is 200 N. What is the tensile stress if the cross sectional area is 4.0 mm^2
An 8 meter, 280 Newton uniform ladders rests against a smooth wall. Find how far up the ladder can an 870 Newton person climb before the ladder begins to slip
a 0.465 kg wood block is firmly attached to a very light horizontal spring k 165 nm . it is noted that the
a thermistor is a solid-state device widely used in a variety of engineering applications. its primary characteristic
A person on earth notices a rocket approaching from the rightat a speed of 0.75c and another rocket approaching from the left at0.65c. What is the relative speed between the two rockets
Calculate the mass of the sun from the radius of the earth's orbit (1.50×1011 m), the earth's period in its orbit, What is the density of the sun
A container explodes and breaks into three fragments that fly off 120 degrees apart from each other, what is the speed of the other two fragments
A young hockey player stands at rest on the ice holding a 1.3 kilogram helmet. Calculate the mass of the hockey player
A stunt person drives a car at a speed of 20 m/s off a 30 meter high cliff. The road leading to the cliff is inclined upward at an angle of 20 degree. Determine how far from the base of cliff does the car land
A person pushes on a stationary 125 N box with 64 N at 30 deg below the horizontal, What is the force friction on the box
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