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Distinguish between reversible and irreversible processes in thermodynamics. Describe the circumstances under which a) dQ = Tds and dW = -PdV.
A long cylinderical rod of radius R is attached to a source of heat at one end and its surroundings are at temperature Ro. Show that at time t, temperature of the rod T(x,t) obeys the given equation (see attachment).
Assuming from Newton's law of cooling that R(T) = A(T - To) where A is a constant,
a) Obtain an expression for steady state temperature distribution T(x) when hot end of the bar is at temperature T1.
b) Given that A is independent of r, show that in steady state the heat transported away from the hot end is proportional to r^(3/2).
c) Given that the heat loss is negligible (A = 0), show that a solution of the equation is as given (see attachment)
Attachment:- SM 16.doc
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 8.0 cm behind the mirror. Decide the mirror's radius of curvature. Decide the magnification of the image.
the separation distance between two 1.0 kg masses is change. how is the mutal gravitational force affected in each case
A major-league pitcher can throw a baseball in excess of 48.7m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 15 m away from the point of free.
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
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A 2900 kg truck traveling northat 40 km/h turns east and acceleratesto 51 km/h. What is the change in the truck's kinetic energy
Assume you measure the terminal voltage of a 3.17 Volt lithium cell having an internal resistance of 5.20 ohm by placing a 1.00-k voltmeter across its terminals. Determine the actual terminal voltage to the nearest 0.001 Volt
A 45.8-g golf ball is driven from the tee with an initial speed of 44.9 m/s and rises to a height of 27.9 m. determine the kinetic energy of the ball at its highest point
A football is kicked from ground level and lands 57.0 m downfield. What max heigh above the ground does the ball reach
A 74.0 kilogram man stands on a scale in an elevator. Obtain the apparent weight when the elevator is moving upward at a constant speed
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