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A charged particle with charge +5.0 ?C is initially at rest. It is accelerated through a potential difference of 500 V. What is the kinetic energy of this charged particle?
Find the number of revolutions that the wheel turns before it stops(and begins to turn in the opposite direction).
An object fired at an angle of 19.1° above the horizontal takes 2.61 s to travel the last 15.3 m of its vertical distance and the last 10.3 m of its horizontal distance. With what speed was the object launched
A 1000kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 16s , What is the rocket's speed as it passes through a cloud 4200m above the ground
A 220, 45.0-cm-diameter turntable rotates on frictionless bearings at 55. A 21.0 block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
A 23-g bullet traveling 270m/s penetrates a 1.8kg block of wood and emerges cleanly at 195m/s. how fast does it move after the bullet emerges
A particular organic molecule forms an electric dipole by possessing an effective charge separation of 0.177 nm for a pair of ±1.60 × 10-19-C charges. find the magnitude of the molecule\'s electric dipole moment
Two identical cars (m = 1350 kg) are traveling at the same speed of 26.9 m/s. compute the magnitude of the total momentum of the two cars
Inside the house where the temperature is 20C, we measure the length of an aluminum rod with a micrometer made of steel, find the length of the cold rod according to the cold micrometer
A scuba diver and her gear displace a volume of61.0L and have a total mass of68.0kg. What is the buoyant force on the diver in sea water
A farmer named Ben attempts to remove an 80-kg rock from his field. He applies a force of 789 N for 10 seconds but could not move the rock. How much work has he done
A spinning flywheel has rotational inertia I = 401.0 kg · m2. Its angular velocity decreases from 20.4 rad/s to zero in 261.6 s due to friction
A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is 511 nm, while the power is 1.5 W. how many photons are emitted by the laser
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