Recent content by maurice2705

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    What Is the Heat Capacity in an Isothermal Process?

    Homework Statement The question is presented as picture. Homework Equations What is the expression of this 'heat capacity C'? The x-process is isothermal then C=nCΔT=0? Please give me some ideas. The Attempt at a Solution set V1=V2, V3=V4, T1=T4, T2=T3, p1+p0=p2, p3-p0=p4...
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    Coefficient of static friction of uniform rod

    Homework Statement A uniform rod AB has a length l and a weight W0. End A is in contact with a rough wall, but it is not fixed. A massless cord connects end B and is fixed to the wall at point C. The rod AB is now horizontal and the angle formed between the cord and rod is θ as shown in the...
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    What Happens to Gas Temperature in an Isothermal Expansion?

    Homework Statement A thermally isolated chamber is pumped down to a very low pressure. At some point, the chamber is vented slowly so that it is filled with air up to atmospheric pressure, whereupon the valve is closed. The temperature of the air surrounding the chamber is T0=300 K. What is...
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    Calculating Gravitational Force on a Point Mass in the Presence of a Cavity

    Homework Statement The question is presented as picture. Homework Equations We do not have the radius of the cavity and the position of the m. How can we find the force acted on it? The Attempt at a Solution r=1/(M-m)*Ʃmr=1/(M-m)*4/3ρR'^3*r where m is the mass of cavity ,R' is the...
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