A tapered pin has a small-end diameter of 101 centimeters and a large-end diameter of 189 centimeters. What is the difference between the two diameters?
Fill in the blank(s) with the appropriate word(s).
88
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At temperatures below the thermoneutral zone, mammals or birds often increase thermogenesis
Indicate whether the statement is true or false
PROBLEM 3.70
A hollow steel drive shaft (G = 11.2 × 106 psi) is 8 ft long and its outer and inner diameters are respectively equal to 2.50 in. and 1.25 in. Knowing that the shaft transmits 200 hp while rotating at 1500 rpm, determine (a) the maximum shearing stress, (b) the angle of twist of the shaft.
Which of the following statements about a main bonding jumper is not true?
A. It is permitted to consist of a wire, a busbar, or a screw. B. It typically is located in each section of a multisection switchboard. C. It provides the essential path for ground-fault current to return to the source. D. It may be bare or insulated.
Without using a calculator or computer find the dot products of
to show that they are orthogonal.