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a) What is the wavelength of a 100 keV electron? (Show your calculations)
b) Explain why a "particle in a box" can only have certain amounts of energy.
A rocket is launched from the ground with an initial speed of 30 m/s at an angle of 40 degrees with respect to the horizontal. How far down range will the rocket have traveled
Determine how much work must you do to push a 14 kilogram block of steel across a steel table at a steady speed of 1.1 m/s for 2.7 second? Find what is your power output while doing so
Consider a gas of neutrons in a nuclear reactor. The neutron density is 10^8 neutrons/cm^3 in an operating reactor which has a core temperature of 535K. Are the neutrons in the reactor core a classical gas or a quantum mechanical gas and how can y..
An ore car of mass 43000 kilogram starts from rest and rolls downhill on tracks from a mine. Find how much of the spring compressed in stopping the ore car
What portion of jet power lost to producing sound Powdered steel is placed in a container
A wagon is rolling forward on level ground. Friction is negligible.The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 91 kg. The mass of the rock is0.30 kg.
A charged object moving with a velocity v = 210 m/s passes through a magnetic field of B = 0.70 T that is oriented at an angle of 350 relative to the velocity. what is the magnitude of the charge on the object
an aluminum wing on a plane is 34.8 m long when the temperature is 20 oc. at what temperature would the wing be 0.06 m
A spectrometer utilizes a grating with 12 000 lines/cm. Discover the angles at which red light, 632 nm, and blue light, 421 nm, have first-order bright bands.
You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.51 times the passenger's weight. What is the maximum speed of the elevator
A railroad car of mass 2.54 104 kg, is moving with a speed of 3.91 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
A diffraction grating with 396 lines/mm is illuminated with light of wavelength 343nm. What is the angular separation between the two second order bright fringes
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