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A car of mass 1200 kg is being moved by a large crane in preparation for lowering it onto a junk pile. If the car is accelerating downward at 0.20 m/s2, what is the tension in the cable.
A copper ball with a radius of 1.5cm is heated until its diameter has increased by 0.17mm .Assuming an initial temperature of 21?C
a hockey player hits a .1 kg puck initially at rest on the ice with a force of 160 n for a period of .024 s. what is
UV light of wavelength 211 nm falls on a silver surface whose work function is 4.74 eV. Find the maximum speed of the photoelectrons emitted from the surface
A car is traveling north at 20.0 m/s. After 10 s its velocity is 14.0 m/s in the same direction. Find the magnitude and direction of the car's average acceleration
The load bearing piston in a certain hydraulic has an area 50 times as large as the input piston. how large a force must be applied to the input system
You push your couch a distance of 6.0 m across the living room floor with a horizontal force of 225 N. What is the work done by you, by the friction force, by gravity, and by the net force
A car traveling 59.6 km/h is 21.4 m from a barrier when the driver slams on the brakes. The car hits the barrier 1.90 s later. What is the car's constant deceleration magnitude before impact
A student tries to raise a chain consisting of three identical links. Each link has a mass of 240 gram. Determine the acceleration of the chain
An 8.5 x 11cm sheet of metal is illuminated by a light source located 1.3m directly above it. What is the luminous flux falling on the metal if the source has an intensity of 200cd? What is the total luminous flux emitted by the light source?
A force of 83 Newtons is applied to a wire with a diameter of 0.5 mm. What is the tensile stress (in N/m2) in the wire
The leg and cast weigh 220 N. find out the weight and the angle needed so that no force is exerted on the hip joint by the leg plus the cast.
the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
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