Obtain the equivalent resistance Rab in each of the circuits of Fig. 2.117. In (b), all resistors have a value of 30 ?.




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The light striking a pane of glass is refracted as shown in Figure 4.20. The law of refraction states that na sin ?a = nb sin ?b, where na and nb are the refractive indexes of the materi-als through which the light is passing and the angles are from a line that is normal to the surface. The refractive index of air is 1.00. What is the refractive index of the glass?

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E. coli is one of the problems when using manure as a fertilizer

Indicate whether the statement is true or false

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Cylindrical porosity is often called a _____.? ?  

Fill in the blank(s) with the appropriate word(s).

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Solve the proportion for the unknown term (x):  3.5:1= x:14.

What will be an ideal response?

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