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A proton is released from rest at the positive plate of a parallel plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50,000 m/s/ What will be the final speed of an electron released from rest at the negative plate?
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 44 dB by an observer 10 km away. What is the average power generated by the horn
A 4.20–kg block is set into motion up an inclined plane with an initial speed of vi = 7.40 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of ? = 30.0° to the horizontal.
A model airplane with a mass of 0.757 kg is tethered by a wire so that it flies in a circle 30.9 m in radius, Find the angular acceleration of the airplane when it is in level flight
A converging lens with focal length of 11.8 cm is placed in contact with a diverging lens with a focal length of 21.1 cm. What is the focal length of the combination
Consider an old-fashion bicycle with a small wheel of radius 0.25 m and a large wheel of radius 0.86 m. Find the total distance traveled by the rider
If the car is now at rest and the pendulum undergoes S.H.M. would its time be shorter of longer than that calculated in (b) explain your answer.
In the overhead view of Fig. 9-54, a 300 g ball with a speed v of 6.0 m/s strikes a wall at an angle ? of 30°, determine the impulse on the ball from the wall
A 2.5 cm diameter metal sphere is glowing red, but a spectrum shows that its emission spectrum peaks at an infrared wavelength of 2.0 micrometers How much power does the sphere radiate
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.50 1011 m apart. What is the mass of the smaller star
A pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam. What is the pulsar's angular acceleration
A rotating cylinder about 16 {rm km} long and 7.40 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration due to gravity as on Earth.
A solid sphere is rolling without slipping along a horizontal surface with a speed of 4.50 m/s, What is the speed of the sphere after it has rolled 3.00m up the ramp
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