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題組內容

2. A heat engine operating using the cycle shown in Figure 2. The working substance is n moles of diatomic ideal gas. Find:

(a) The entropy difference between points 2 and 4.

其他申論題

(b) If a glass plate, 10 cm thick, is placed on the bottom of the tank, what is the apparent thickness of the plate when viewed from directly above the water? The indices of refraction for air, water, and glass are = 1, = 4/3, and = 5/3, respectively. Express your calculations using fractional numbers (such as 4/3) instead of decimal numbers (such as 1.33...).

(a) the magnitude of the acceleration of the block ,

(b) the magnitude and the direction of the static friction force acted on the cylinder ,

(c) the total kinetic energy of the cylinder .

(b) Total heat absorption by the gas during the cycle.

(c) Total work done by the gas during the cycle.

(d) Efficency of the engine.

(a) Write an expression for the traveling wave function y(x, t).

(b) The tension of the string is 36.0 N, what is the average power transferred along the string?

4. As shown in Figure 3, an infinite nonconducting sheet with a round hole of radius R has a uniform surface charge of density σ. Find the expression of magnitude of the electric field at point P, with a distance z along the central axis of the hole.

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