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(a) Show that the work done by an ideal gas during the quasi-static, isothermal expansion from an initial pressure Pi to a final pressure Pf is given by
W = nRT ln (Pf/Pi).
(b) Calculate the work done when the pressure of 1mol of an ideal gas is decreased quasi-statically from 20 to 1 atm, the temperature remaining constant at 20°C (R = 8.31 llmol· deg).
An object is placed to the left of a lens, and a real image is formed to the right of the lens. The image is inverted relative to the object and is one-half the size of the object. The distance between the object and the image is 110 cm. (a) How far ..
A man drags a 74.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A 20μF capacitor is charged by a 10-V battery through a 50kΩ resistor. What is the time constant of the circuit? What is the capacitor voltage 1.5s after circuit is closed?
A jogger runs directly east for 4 km, then turns and goes northwest for 6 km. He then travels directly south for 5 km. How far is he from the starting point?
What is the period of oscillation of the scale? State your reply numerically in seconds.
A 9.9kg dog takes a nap in a canoe and wakes up to find the canoe has drifted out onto the lake but now is stationary. What is the mass of the canoe
What is the bandwidth of the grating in nm? What is the Reflectivity (in %) and Transmission (in dB)? Will this grating be any good for filtering unpolarized light?
A car drives 5.0 km north, then 7.3 km east, then 6.7 km northeast, all at a constant velocity. If the car had to perform 2.6 × 106 J of work during this trip, what was the magnitude of the average frictional force on the car
how many reflections will the light make before exiting this "hall"?
Although physics problems often assume that inductors have zero resistance, actual inductors can, in fact, have appreciable resistance. What is the inductance of the inductor
For 10000 points, mean is 10 and standard deviation is about 6= Sqrt(770/21). how do they compare with the theoretical value
q1. the breaking stress for a wire of radius r of given material is f nms square. afterwards find the breaking stress
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