When protecting the body from injury, what body parts are the most critical?
What will be an ideal response?
The most critical parts of the body to protect are the face and eyes
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This type of compass is best for pencil drawings and tracings because it retains its settings.
A. spring bow B. friction joint C. beam D. drop bow
Which of the following statement(s) is (are) false?
A) The concept of elasticity of demand was originated by Alfred Marshall. B) If the change in total utility for apples is 50 utils and the change in consumption of apples is 5 units, then marginal utility is 10. C) Economists do not actually need to measure the level of satisfaction to discern preferences for alternative combinations of goods. D) None of the above (that is, all statements are true).
One of Suzanne’s project engineers e-mailed her the screen-shot (below) of his spreadsheet analysis of the annual costs and savings for two equivalent systems considered for installation as a major upgrade of the fire and safety systems that reduce the possibility of human injury on the company’s prime assembly line. He included the following statement in the e-mail: “Since the company’s MARR is 20% per year, the extra investment in FirstSafe (FS) is not justified with a breakeven incremental ROR of 16.86%. However, with an exception to reduce the required return to 16%, or slightly above this, for this case only, FirstSafe is economically acceptable over FireWall (FW). Besides, I like the features on FirstSafe much better than those of the other, less expensive FW system.
Can I go ahead and order the FirstSafe system?”
From all that you have learned in these last two chapters, would you recommend that Suzanne accept this analysis and respond “Yes” to the request to purchase FirstSafe? If not satisfied, what additional information would you suggest that Suzanne request of her engineer?
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If the frequency decreases in Figure 12-1, the phase angle ________ and the current ________
A) decreases, decreases B) decreases, increases C) increases, increases D) increases, decreases