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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.
On an essentially frictionless horizontal ice-skating rink, a skater moving at 2.6 m/s encounters a rough patch that reduces her speed by 48 % to a friction force that is 20 % of her weight
A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +44.0 cm. How far behind the concave lens should the film be placed
a duck has a mass of 2.6 kg. as the duck paddles a force of 0.11 n acts on it in a direction due east. in addition the
A child tries to swing an adult size baseball bat without choking up on it. She can manage only 180 °/s of angular velocity with a radius of 75 cm. Compute the linear velocity of the endpoint of the bat in each case
A strong electromagnet produces auniform magnetic field of 1.60 T over a cross-sectional area of0.200 m2. We place a coil having 200 turns and a totalresistance of 20.0 Ω around the electromagnet.
A car has 53% of its weight on its front wheels and 47% on its rear wheels, How far from the rear axle is the car's center of gravity
Using the electric field described in the alpha-cannon simulation, suppose that an alpha particle is fired upward and forward from a height y = 0 m at a speed v = 28.0 m/s.
A block of wood is placed on a frictionless horizontal surface and a 7.00 g bullet is fired from a gun into the 1.00-kg block of wood and remains embedded. find the average force exerted by the block on the bullet
Rank the magnitudes of the forces exerted on the following particles from largest to smallest. In your ranking, display any cases of equality. (Use only ">" or "=" symbols. Do not contain any parentheses around the letters or symbols.)
Vector A has components of +3 in the x-direction and -4 in the y-direction. Vector B has components -2 in the x-direction and +3 in the z-direction
If the linear dimensions of an object are doubled, by how much does the surface area increases? By how much does the volume increases
A ball is thrown horizontally from a building. What happen to the horizontal and vertical accelerations? (Ignore the effects of air resistance) Will the ball accelerate in the vertical direction, however not the horizontal direction?
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