As a rule of thumb, how big should a first garden be for four people?
a. 1/3 acre c. 10 ft ? 10 ft
b. 1 square foot d. 260 square feet
D
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Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. Dilute sulfuric acid (19 percent acid, the rest water) is required for activating car batteries. A tank of weak acid (12.5 percent concentrate, the rest water) is available. If 450 lb of 78 percent concentrate acid is added to the tank to get the required 19 percent acid, how much of the 19 percent acid is now available?
What will be an ideal response?
To become more efficient, organization have increasingly
a. downsized. b. employed cutbacks. c. close plants, refurbished others and slashed payrolls. d. All of the above are correct. e. None of the above are correct.
?The power steering pump belt breaks on a rack and pinion power steering system. Under this condition:
A. ?The spool valve no longer moves inside the rotary valve when the steering wheel is turned. B. ?The steering operates like a manual steering system, and steering effort is higher. C. ?Power steering fluid may be forced from the rack seals when the steering wheel is turned. D. ?The torsion bar may be broken when the front wheels are turned to the right or left.
In a 12 volt circuit with a resistance of 12 ohms, how much current will flow?
A) 12 A B) 1 A C) 10 A D) 0.1 A