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A point charge with charge q1= 2.90 mC is held stationary at the origin. A second point charge with charge q2= -4.30 mC moves from the point (0.170m , 0) to the point (0.235m , 0.255m ).
How much work W is done by the electrostatic force on the moving point charge?
Two Automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision, What was the speed of car B before the collision
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A 30.0 kg hammer strikes a steel spike 2.30 cm in diameter while moving with a speed of 20.0 m/s. What is the average strain in the spike during the impact
A certain toaster has a heating element made of Nichrome resistance wire. What is the final temperature of the heating element
When at cruising altitude, a typical airplane cabin will have an air pressure equivalent to an altitude of about 2510 m. During the flight, what is the net force on one ear drum due to this pressure difference
A 52.0 skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 2.90. What speed does he need at the bottom.
A string of length L, which is clamped at both ends and has a tension T, is pulled aside a distance h at its center and released
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suppose two parallel-plate capacitors have the same charge q but the area of capacitor 1 is a and the area of capacitor
The jet accelerates uniformly, and during that time, the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.370 m. find the magnitude of the plane's acceleration.
A stone is dropped from rest into a well. The sound ofthe splash is heard exactly 2.00 s later. Find the depth of the well if the air temperature is 10.0 C
1. gaseous helium is to be used to quench a hot piece of metal. the helium is in storage in an insulated tank with
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