The speed of sound cs in a material is given by c s = √ B / ρ, where ρ is the density of the material, with units of kg / m3 , and B is the bulk modulus of the material. The units of B are (m=meter, s=second, kg=kilogram)
A. kg2m4 / s2
B. kgm5 / s2
C. kg / m2s
D. kgm4 / s
E. kg / ms 2
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