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Two boxes, A and B, are connected by a (mass-less) cord and are resting on a smooth (frictionless) table. The boxes have masses of 12.0 kg and 10.0 kg. A horizontal force F of 40.0 N is applied to the 10-kg box. Find the acceleration of each box. Find the tension force in the cord connecting the two boxes.
A cardboard tube of radius R and length L has a uniform charge density on its surface. Find the potential at a point on the axis of the tube at a distance d from the center.
An ant, crazed by the sun on a hot Texas afternoon, darts over an xy plane scratched in the dirt. What are the magnitude and angle (relative to the positive x axis) of the overall displacement
A uniform steel plate has an area of 0.905 m2. When subjected to a temperature difference between its sides, a heat current* of 22.5 kW is found to flow through it. What is the temperature gradient? What is the temperature difference when the plat..
At the top a giant 360 swing on the high bar, a 50 kg gymnast has a velocity of 1 m/s and he is 3.5 m about the ground, What is the gymnast's gravitational potential energy
A small package rests on the horizontal dashboard of a car. If ?s = 0.302, what is the minimum acceleration of the car
What is an actual mechanical advantage of the system
Calculate the electric field intensity at a distance of 14 cm from the center of the shell
At the right you see that a string (mass negligible) passes over a pulley. calculate the normal force of the floor on the bottom of the 5 kg mass
The wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 84,000 N. What is the average difference in the air pressure
One tire is inflated to a pressure of 40 and goes a distance of 18.0 ; the other is at 105 and goes a distance of 93.4. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be = 9.80.
A car travelling at 23 m/s runs out of gas while travelling up a 20 degree slope. How far up the hill will it coast before starting to roll back down.
A 7,800-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 2 m/s
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