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An electron is confined to move in the xy plane in a rectangle whose dimensions are Lx and Ly. That is, the electron is trapped in a two-dimensional potential well having lengths of Lx and Ly. In this situation, the allowed energies of the electron depend on two quantum numbers nx and ny and are given by
Particle 1 and particle 2 have masses of m1 = 1.1 × 10-8 kg and m2 = 6.3 × 10-8 kg, but they carry the same charge q. What is the radius (in cm) of the circular path for particle 2
The tension in the horizontal towrope pulling a water-skier is 270 N while the skier moves due west a distance of 52 m. How much work does the towrope do on the water-skier
A baseball player hits a baseball at one meter above the ground and gives it a velocity of 36 m/s at 41 degrees above horizontal. What will be the maximum height above the ground of the ball as it goes toward the fence
The ends of a 20cm long, 2.0cm diameter are maintained at 0°C and 100°C, What material is the rod made of
A centrifuge in a medical laboratory rotates at an angular speed of 3750 rpm (revolutions per minute). Find the constant angular acceleration of the centrifuge
A 30.0 capacitor initially charged to 30 is discharged by a 1.40 resistor. How long does it take to reduce the capacitor's charge to 2.00.
The dimensions of the picture on a 35.0{\rm mm} color slide are x = 24.0{\rm mm} {\times}y = 36.0{\rm mm}. What are the dimensions of the image on the screen
q1. for years marine scientists were mystified by sound waves picked up by underwater microphones in the pacific ocean.
A motor is designed to operate on 131 V and draws a current of 12.2 A when it first starts up. What is the resistance of the armature coil
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach base camp
What diameter must a helium filled balloon have to float with neutral buoyancy? The mass of the empty balloon is 2.0g
A hang glider and its pilot have a total mass equal to 146 kg. While executing a 360° turn, the glider moves in a circle with a 9 m radius. What is the net force on the hang glider
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