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Think about an atomic nucleus to be equivalent to a one-dimensional infinite potential well with L = 1.1 x 10-14 m, a typical nuclear diameter. What would be the ground-state energy (in GeV) of an electron if it were trapped in such a potential well? (Note: Nuclei do not contain electrons.)
A car sounding its horn (rated by the manufacturer at 600 Hz) is moving at 20 m/s toward the east. What frequency will he hear the assuming that the speed of sound is 343 m/s
Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.30 kg wrench from 3.50 m above the ground, What is the mass of the planet
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 3.00 m away. what is the distance between the two second-order maxima
An unknown mass of tin is heated to a temperature of 218 C. It is placed into 200 g of water which is in a 100 g copper cup initially at 10 C. What is the heat lost by the sample of tin
Explain how the earth’s geomagnetic field is created? Hint: be sure to include thedirection of the earth’s current. Why is Northern Canadabombarded by more intensecosmic radiation (solar wind) than Mexico is? Why do astronauts keep to altitudesbeneat..
A thin film of polystyrene is used as an antireflectivecoating for fabulite (known as the substrate). The index ofrefraction of the polystyrene is 1.49, and the index of refractionof the fabulite is 2.409.
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. the
A 75 g spherical ball rolls without slipping down a ramp that makes an angle of 20 degrees with the horizontal. Find the magnitude and direction of the frictional force on the ball
A block with a mass m= 5.7 kg is pulled up a 29 degree incline with the force of magnitude F = 38N. Find the acceleration of the block if the incline is frictionless
a parallel-plate air capacitor is made from two plates 0.250 m square spaced 0.900 cm apart. it is connected to a 120 v
A 3.0-kg cylinder falls vertically from rest in a very tall, evacuated tube 20m above the surface of the earth. what is its kinetic energy just before it hits the earth
A 40 kg girl, skating at 7 m/s, collides with her 90 kg father who is initially standing still. What is their speed after the collision
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