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A piece of crystalline silicon slice contains an impurity whose concentration is given by NImpurity = ax where x is alone the direction perpendicular to the surfaces of the Si slice and a is a constant. The Si is held motionless and immersed in a stationary ambient gas.
The two surfaces of the Si slice are in perfect thermal contact with the ambient gas which is held at 300K and which can be considered as an infinite heat sink and heat source. Is the Si slice at thermodynamic equilibrium?
Does it approach several partial equilibrium conditions? Give reasons.
A tube with two open ends is 1 m long. What is the wavelength of the fundamental vibration of an air column in this tube
The lab-frame speed of light propagating along arm A in the aether theory would satisfy. where V~ is the velocity of the lab relative to the aether and ? is the angle between V~ and ~v' A. Use this to derive the approximate expression for the lab-fra..
The capacitors are identical except that C2 has a dielectric inserted between its plates. A 210 V battery is connected across the combination until electrostatic equilibrium is established, and then the battery is disconnected.
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.05 cm, and a -2.42 µC charge is located at y = -1.30 cm. Find the total electric potential at the origin
A block of mass m is attached to a string that is wrapped around the circumference of a wheel of radius R and moment of inertia I. Find the moment of inertia of the wheel
A rocket is accelerating upward at 4.90m/s2 from the launchpad on the earth. If the ball is displaced 8.50 ? from the vertical and released, find the amplitude of the resulting swings of this pendulum
A small insect is placed 6.60 cm from a7.00-cm-focal-length lens. Calculate the position of the image. Follow the sign conventions.
Suppose a 170-kg motorcycle has two wheels, and is heading toward a hill at a speed of 30.0 m/s. How much energy is lost to air resistance
A 1.53 kg ball is attached to a ceiling by a 3.06 m longstring. The height of the room is 5.12 m. The acceleration of gravity is 9.8 m/s2. What is the gravitational potential energy associated with theball relative to the ceiling? What is the gravit..
A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a speed of 4.5 g/s with an exit speed of 80.0 m/s. The car has a mass of 400 g, including the CO2 cylinder. Starting from rest, what is the car's initial accel..
Yusef pushes a chair of mass = 51.0 across a carpeted floor with a force (the subscript 'p' here is lowercase and throughout the question) of magnitude = 170 directed at = 35.0 below the horizontal. The magnitude of the frictional force between the c..
Someone will carry two different load mA = mB = 30 kg and 50 kg. The second load was attached to the ends of massless rod of length 2 m. What is the distance the shoulders of bearers with mA load will be in balance?
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