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Q. Motor M draws in the cable with an acceleration of 4 ft/s^2, measured relative to the 200 lb mine car. Determine the acceleration of the car and the tension in the cable. Neglect the mass of the pulleys.
Q. A 543 physics student stands on a bathroom scale in an 824- (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 462 . Find the magnitude of the acceleration of the elevator?
What is Newtons Version of Keplers Third Law
A child slides across a floor in a pair of rubber-soled shoes. Thefriction force acting on each foot is 20.0 N. The footprint area ofeach shoe sole is 14 cm2, and the thickness of eachsole is 5 mm. Find the horizontal distance by which the upper a..
A small metallic bob is suspended from the ceiling by a thread of negligible mass. The ball is after that set in motion in a horizontal circle so that thread describes a cone. Compute the magnitude of the angular momentum of the bob about a vertic..
How would you describe why we have different atmospheric pressure on different level (height) of earth's atmosphere in molecular level (molecular behaviour and what causes such behaviour).
What is the magnitude of the acceleration of the speck of clay on the edge of a potter's wheel turning at 50 (revolutions per minute) if the wheel's diameter is 38.0 cm.
What is final total energy of the system
Two speakers, one straight behind the other, are each generating a 285 Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Suppose that the s..
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
A highway curve with a radius of 555 m is banked properly for the car travelling 150 km/h. If a 1650 kg Porshe 928 S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid.
A meter stick, sitting on a frictionless table top, is struck by a wad of clay with a force, F = 4.0 N at an angle. The meter stick will rotate in the plane of the table. Conclude the magnitude of the torque about the axis of rotation located at t..
A horizontal force of 213 N is exerted on a 1.90 kg discus as it rotates uniformly in a horizontal circle (at arm's length) of radius 1.60 m. determine the time for one revolution of the discus. Round the answer to 2 decimal places.
A rabbit runs in the straight line with a velocity of +1.6 m/s for a period of time, rests for 12 s, and then runs again along the equivalent line at +0.52 m/s for an unidentified amount of time. The rabbit travels the total distance of 1224 m, and i..
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