Over the time span of the production plan, which of the following can usually be varied to change capacity?
A) inventories
B) work force
C) plant and equipment
D) all of the above
E) A and B
E
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Problem 1.50 Determine the factor of safety for the cable anchor in Prob. 1.49 when P = 2.5 kips, knowing that a = 2 in. and b = 6 in. Problem 1.49 A steel plate 14 in. thick is embedded in a concrete wall to anchor a high-strength cable as shown. The diameter of the hole in the plate is 34 in., the ultimate strength of the steel used is 36 ksi and the ultimate bonding stress between plate and concrete is 300 psi. Know¬ing that a factor of safety of 3.60 is desired when P = 2.5 kips, determine (a) the required width a of the plate, (b) the minimum depth b to which a plate of that width should be embedded in the concrete slab. (Neglect the normal stresses between the concrete and the end of the plate.)
_______________ digestion involves the decomposition of organic matter by methano bacteria in the absence of oxygen to produce biogas
Fill in the blank(s) with the appropriate word(s).
At what temperature do hermit crabs thrive?
a. Between 75°F and 85°F b. Temperatures above 90°F c. Between 90°F and 105°F d. Temperatures above freezing but below 80°F
____ is magnetic and has very slight solid solubility, less than 0.02%, of carbon.
A. Ferrite B. Cementite C. Pearlite D. Austenite