If a machined part has an irregular, torn surface with many micro cracks due to poor practice, what can happen to the service life of this part?
A) It could cause corrosion B) The part could fail early due to metal fatigue
C) It may extended D) There would be no appreciable effect
B
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Today, beef makes up about two-thirds of meat produced and consumed globally
Indicate whether the statement is true or false
Find a 95% confidence interval for the mean difference in time to freeze-up between the first month and the seventh.
A computer system administrator notices that computers running a particular operating system seem to freeze up more often as the installation of the operating system ages. She measures the time (in minutes) before freeze-up for seven computers one month after installation, and for nine computers seven months after installation. The results are as follows: One month after install: 207.4 233.1 215.9 235.1 225.6 244.4 245.3 Seven months after install: 84.3 53.2 127.3 201.3 174.2 246.2 149.4 156.4 103.3
The greatest environmental or social cost of pesticide use in the United States is the damage to sport and commercial fishing
Indicate whether the statement is true or false
The drywall hammer is especially suited for drywall installation because it has a _____
a. soft rubber head b. hatchet-like blade on one end for cutting drywall c. convex face d. flexible handl