Multiple Choice
Two girders are made of the same material.Girder A is twice as long as girder B and has a cross-sectional area that is twice as great.The ratio of the mass density of girder A to the mass density of girder B is:
A) 4
B) 2
C) 1
D) 1/2
E) 1/4
Correct Answer:

Verified
Correct Answer:
Verified
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