PROBLEM 3.26 The two solid shafts are connected by gears as shown and are made of a steel for which the allowable shearing stress is 8500 psi. Knowing that a torque of magnitude is applied at C and that the assembly is in equilibrium, determine the required diameter of (a) shaft BC, (b) shaft EF.
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The 1662 slave codes in Virginia are significant because they
A. restricted the number of slaves that could be imported into the colony. B. established a legal difference between servants and slaves based on race. C. established curfews and prohibited slaves from moving freely about the colony. D. outlined the conditions under which slaves could obtain their freedom. E. made slaves and indentured servants of equal status under the law.
Mr. Young built a greenhouse 46 feet wide, 100 feet long, 6 feet to the eaves, and 15 feet to the ridge cap (Figure 11-1).
a. How many square feet of plastic did it take to enclose the greenhouse?
b. What is the slope of the roof?
c. What angle does the roof make with the horizontal?
Phenotypic variation exists within traits due to
A) Genotype B) Environment C) Both of the above
Ram air is the result of ____________
A) The forward motion of the vehicle. B) Manifold vacuum. C) The force of air caused by the blower fan. D) The air intake system.