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$\degree$
C)mnv sin 30$\degree$
D)mnv cos 30$\degree$
E)mnv

Question

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$\degree$ 
C)mnv sin 30$\degree$ 
D)mnv cos 30$\degree$ 
E)mnv

Quizplus · Accepted Answer

The Answer of 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$\degree$ 
C)mnv sin 30$\degree$ 
D)mnv cos 30$\degree$ 
E)mnv

A Stream of Gas Consists of N Molecules °\degree° C)mnv Sin 30

A Stream of Gas Consists of N Molecules $\degree$ C)mnv Sin 30