Chapter 1: Q23P (page 22)
(For masochists only.) Prove product rules (ii) and (vi). Refer to Prob. 1.22 for the definition of.
Short Answer
The product rules (ii) and (vi) are proved.
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Chapter 1: Q23P (page 22)
(For masochists only.) Prove product rules (ii) and (vi). Refer to Prob. 1.22 for the definition of.
The product rules (ii) and (vi) are proved.
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In two dimensions, show that the divergence transforms as a scalar under rotations. [Hint: Use Eq. 1.29 to determine andand the method of Prob. 1.14 to calculate the derivatives. Your aim is to show that
Evaluate the following integrals:
(a) , where a is a fixed vector, a is its magnitude.
(b) , where V is a cube of side 2, centered at origin and .
(c) , where is a cube of side 6, about the origin, and c is its magnitude.
(d) , where , and where v is a sphere of radius 1.5 centered at .
Check the divergence theorem for the function
using the volume of the "ice-cream cone" shown in Fig. 1.52 (the top surface is spherical, with radius R and centered at the origin). [Answer: ]

Draw a circle in the xyplane. At a few representative points draw the vector v tangent to the circle, pointing in the clockwise direction. By comparing adjacent vectors, determinethe signofandAccording to Eq. 1.41, then, what is the direction of ? Explain how this example illustrates the geometrical interpretation of the curl.
Compute the divergence of the function
Check the divergence theorem for this function, using as your volume the inverted hemispherical bowl of radius R,resting on the xyplane and centered at the origin (Fig. 1.40).
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