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Question: In an old fashioned color-television tube electrons pass through a potential difference of 30kV before they strike the phosphorescent screen at the end of the tube. What is the maximum energy that an x-ray photon can have coming from this tube? What is the wavelength of that photon?
cylinder made of red brass (K = 130 W/m degrees C) supports a hot reservoir at a temperature of 64o Celsius. Find the rate of heat flow through the cylinder
A 0.150-kg glider is moving to the right on a frictionless,horizontal air track with a speed of 0.80 m/s. Find the final velocity (magnitudeand direction) of each glider if the collision is elastic
The cable supporting a 1950 kg elevator has a maximum strength of21920 N. What maximum upwardacceleration can it give the elevator without breaking
In 0.2s, a coil of die with 50 loops experiences an average induced emf of 9v due to a changing magnetic field perpendicular to the plane of the coil. what is the final strength of the field
What is phase change as the light is reflected from the top
The coefficient of kinetic friction between the floor and the suitcase is 0.21. If the suitcase has a mass of 62 kilogram, determine how far can it be pushed across the level floor with 710 Joule of work
A skier of mass 64 kg starts from rest at the top of an 18° slope points her skis straight down the slope and lets gravity pull her down the slope. The slope is 65 m long. Her speed at the bottom is 15 m/s.
A small block is released from rest at the top of a frictionless incline. The block travels a distance 0.263 m in the first second after it is released
lithium has two stable isotopes 6li and 7li. if a sample is composed of 39 of the lighter isotope with the balance
Avogadro's number of water molecules has a mass of 18 gram. If we were somehow able to move an electron from one out of every 109 molecules in a gram of water, what would be its charge
There is a metal rectangular plate with a hole in the center. The hole is just big enough to pass a tennis ball through. As this plate heats up what would happen to the size of this hole? Would it be easier or more difficult to pass the tennis ball t..
An infinite plane of surface charge density +.2uC/m^2 is in the y-z plane at x=0, What is the magnitude of the electric field close to the surface
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