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An electron is accelerated through a potential difference of 3.00 V before colliding with a metal target. What minimum-wavelength light can such an electron emit?
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
A horizontal mass-spring system is in SHM. The mass is 0.25kg, the spring constant is 12N/m, and the amplitude is 15cm, What is the maximum speed of the mass and where does it occur
A rifle with a weight of 35 N fires a 5.5 g bullet with a speed of 200 m/s. If a 725 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
What is the frequency of string that was tightened.How high does it rise above the ground.
The angular speed of an automobile engine is increased from 1540.0 rev/min to 1865.0 rev/min in 17.0 s. How many revolutions does the engine make during this time
A 13kg box slides 4 m down the frictionless ramp , then collides with a spring whose spring constant is 180Nm.
The magnetic field in a region of space is specified by its x, y, and z components which are respectively Bx = 0.138 T, By = 0.166 T, find the magnitude and direction of the force acting on the wire
A charge Q1 = 1.33 %u03BCC is at rest and is located 2.30 cm away from another fixed charge Q2 = 1.95 %u03BCC. Calculate the kinetic energy of charge Q1
A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 31.0 ° above the horizontal. The rocket is fired toward an 6.95-m high wall, which is located 18.0 m away.
question1a 20 rm kg uniform door has a width of 1.2 rm m and a height of 2.5 rm m. the door is mounted on a post by a
In his 1865 science fiction novel From the Earth to the Moon, Jules Verne described how three astronauts are shot to the Moon by means of a huge gun. According to Verne, the aluminum capsule containing the astronauts is accelerated by ignition of ..
Find out the coefficient of sliding friction
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