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A Stream of Gas Consists of N Molecules

Question 43

Multiple Choice

A stream of gas consists of n molecules. Each molecule has mass m and speed v. The stream is reflected elastically from a rigid surface as shown. The magnitude of the change in the total momentum of the stream is: A stream of gas consists of n molecules. Each molecule has mass m and speed v. The stream is reflected elastically from a rigid surface as shown. The magnitude of the change in the total momentum of the stream is: A) 2mnv B) 2mnv sin 30 ° C) mnv sin 30 ° D) mnv cos 30 ° E) mnv


A) 2mnv
B) 2mnv sin 30 °
C) mnv sin 30 °
D) mnv cos 30 °
E) mnv

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