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In 0.784 s, a 11.1-kg block is pulled through a distance of 4.71 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring constant of the spring is 484 N/m. By how much does the spring stretch?
The cannonball is fired at a speed of 53.0 and an angle of 31 above horizontal. A cannonball that was accidentally dropped hits the moat below in 1.40. How far from the castle wall does the cannonball hit ground.
An infinitely long charged wire produces an electric field of magnitude 1.17 103 N/C at a distance of 46.4 cm perpendicular to the wire. The direction of the electric field is toward the wire. (a) What is the charge distribution? (b) How many electro..
Two infinitely long straight and parallel wires carry current in opposite directions of 100 A. The wires are a distance 0.40 m apart and are aligned with the x-axis and lying in the x-y plane with the origin halfway between the two wires
A 0.12-kg ball is placed in a shallow wedge with an opening angle of 120°, as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Find contact force o..
Two cylindrical artificial bones are made of the same material and length, one with twice the radius as the other. When the two have the same tension force applied, the larger bone stretches by what factor compared to the smaller bone?
A proton and an electron are moving due east in a constant electric field that also points due east, Determine the magnitude of the acceleration of the proton and the electron
The electrons in the beam of a television tube have a kinetic energy of 2.50 10-15 J. In what direction are the electrons deflected by this field component
A king orders a gold crown having a mass of 0.68 kg. When it arrives from the metalsmith, the volume of the crown is found to be 145 cm^3
A car is traveling at 50.0 mi/h on a horizontal highway, What is the stopping distance when the surface is dry and µs = 0.601
A 5.30 ball is dropped from a height of 11.5 above one end of a uniform bar that pivots at its center. The bar has mass 8.00 and is 6.20 in length. How high will the other ball go after the collision
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
A ball rolls down a hill 100 m. The hill is inclined 60 degrees. what is the final rotational speed of the ball
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