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A ball of mass 0.340 kg moving east (+x direction) with a speed of 3.00 m/s collides head-on with a 0.520 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
A uniform magnetic field points north; its magnitude is 4.8 T. A proton with kinetic energy 7.5 10-13 J is moving vertically downward in this field. What is the magnetic force acting on it
A bullet leaves the muzzle of a gun at a speed of 400m/s. The length of the gun barrel is 0.50m. Assuming the bullet was uniformly accelerated .
a block of mass 0.68 kg is suspended by a string which is wrapped so that it is at a radius of 0.064 m from the center
On a horizontal axis attached a flywheel and lightweight pulley with radius of 5 cm. On the pulleh is reeled with a cord, to which is hanged a weight with mass of 0.4 kg.
A baseball has a velocity of 40.2 m/s (89.9 mi/h), directed horizontally, as it is released by a pitcher. Calculate the ball's instantaneous acceleration just before it is released
A biology student uses a simple magnifier to examine the structural features of an insect's wing. The wing is held 3.60 cm in front of the lens, What angular magnification is achieved
A certain capacitor in a circuit has a capacitive reactance of 30.89 ohms when the frequency is 177 Hz. What capacitive reactance does the capacitor have
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.90×10^6 N, one at an angle 17.0 degrees west of north, What is the total work done by the two tugboats on the supertanker
a helium baloon is used to lift something which weighs 100n. the layer of the baloon weighs 50n and the volume of the
a simple pendulum has a period t2.93218 s in a location where g 9.80000 ms2. a what is its length m?b what would be
Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?
A kicker's extended leg is swung for 0.4 seconds in a counterclockwise direction while accelerating at 200 deg/s2. What is the angular velocity of the leg
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