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A solid metal sphere with radius 0.590m carries a net charge of 0.300 nC.
(a) Find the magnitude of the electric field ata point 0.100 m outside the surface of the sphere.(b) Find the magnitude of the electric field at a point inside thesphere, 0.100 m below the surface.
a crane drops a 1.0 kg steel ball onto a steel plate. the ball's speed just before impact is 2.0 m/s. what is the bounce back speed right after the impact
A 3.0-kg cart is rolling along a frictionless, horizontal track towards a 1.3-kg cart that is held initially at rest. What is the total momentum of the system of the two carts at this instant
A very long wire is held under tension by suspending weights from an end that passes over a pulley. What is the speed of the traveling speed
A car of mass 840.0 kg accelerates away from an intersection on a horizontal road. Calculate the acceleration of the car at that time
From the shore, you observe a buoy in the ocean rising and falling with the waves. You determine it takes 5 s for the buoy to go down and up again, Approximately how fast are the waves moving
A batter hits a fly ball which leaves the bat 0.88above the ground at an angle of 62 with an initial speed of 28 heading toward centerfield. Ignore air resistance. How far from home plate would the ball land if not caught? T
sled is being pulled across a cement sidewalk at constant velocity. the coefficient of friction mu between the cement
A 238 kg cast-iron car engine contains water as a coolant. Suppose the engine's tempera- ture is 33C when it is shut off and the air temperature is 8C. What mass of water is used to cool the engine
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall
For comparison, what is the magnitude of the acceleration a test tube would experience if dropped from a height of 1.0 m and stopped in a 2.0-ms-long encounter with a hard floor
a bicycle is turned upside down in the shop being repaired. a friend spins the wheel, radius R, and notices that water drops fly off the wheel tangentially to the wheel, calculate the average velocity V during one revolution
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
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