To prevent a load from shifting, there should be at least one tie down for every _____ feet of cargo.
a. 10
b. 15
c. 20
d. 5
a. 10
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What will be an ideal response?
The terms voltage, volts, potential, and electromotive force all relate to electrical _____.? ?
A. pressure? B. shock? C. amperage? D. current?
Refer to Exercise 12 in Section 3.2. Assume that 
= 50 ± 1 MPa,w = 1.2 ± 0.1 mm, and k = 0.29 ±0.05 
.
a. Estimate ?, and find the uncertainty in the estimate.
b. Which would provide the greatest reduction in the uncertainty in 
: reducing the uncertainty in ?0 to 0.1 MPa, reducing the uncertainty in w to 0.01 mm, or reducing the uncertainty in k to 0.025 
?
c. A new, somewhat more expensive process would allow both 
and w to be measured with negligible uncertainty. Is it worthwhile to implement the process? Explain.
____________________ prevents some action from taking place until some other action has been performed.
Fill in the blank(s) with the appropriate word(s).