Twenty particles each of mass m0 and confined to a volume v, Ask an Expert

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Twenty particles, each of mass m0 and confined to a volume V, have various speeds: two have speed v, three have speed 2v, five have speed 3v, four have speed 4v, three have speed 5v, two have speed 6v, and one has speed 7v. Find

(a) the average speed,

(b) the rms speed,

(d) the pressure they exert on the walls of the vessel, and

(e) the average kinetic energy per particle.

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