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Suppose a 900-kg car is on the bridge in Figure with its center of mass halfway between the hinges and the cable attachments. (The bridge is supported by the cables and hinges only.)
(a) Find the force in the cables.
(b) Find the direction and magnitude of the force exerted by the hinges on the bridge.
A 5.7 kilogram bucket of water is raised from a well by a rope. The acceleration of gravity is 9.81 m/s2. obtain the force exerted by the rope on the bucket of water
A candle is placed 17.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
You kick a 2.3 kilogram football straight into the air with a force of 50 Newtons. If your foot traveled 150 centimeters when kicking the ball calculate the work done on the football
When B-10 is bombarded by neutrons, a neutron can be absorbedand an alpha particle emitted. If the B-10 target isstationary the kinetic energy of the reaction products is equal to Kinetic energy of incident neutron
The force constant of a spring is 800 N/m and the unscratched length is 0.63 m. A 4.6 kg block is suspended from the spring. An external force slowly pulls the block down, until the spring has been stretched to a length of 0.76 m.
A wheel initially rotating at an angular speed of 2.4 rad/s turns through 30 revolutions during the time, How long did the acceleration last
a solenoid is wound with a single layer of insulated copper wire of diameter 2.500 mm and has a diameter of 3.000 cm
A light beam is directed parallel to the axis of a hollow cylindrical tube. When the tube contains only air, it takes the light 8.84 ns to travel the length of the tube, but when the tube is filled with a transparent jelly, it takes the light 2.02..
A chair of weight 75.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 41.0N directed at an angle of 41.0degree below the horizontal and the chair slides along the floor.
A spherically symmetric object with a density of 1.57g/cm3 and a radius of 16.5cm is falling. Assuming is has a drag coefficient of 378g/s, what is the magnitude of terminal velocity
The loaded cab of an elevator has a mass of 3.6 x 10^3 kg and moves 193m up the shaft in 20s at constant speed. At what average rate does the force from the cable do work on the cab.
A resistance R carries a current I = (5 A) sin 120 ?t + (10 A) sin 240 ?t. What is the rms voltage across the resistor
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