A device in which the shape of an elastic element is changed by a varying pressure is called a __________.
A. variable reluctance transducer
B. LVDT
C. strain gauge
Answer: C
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Indicate whether the statement is true or false.
Which of the following correctly describes human population issues pertinent to food production?
A) We expect the world population to double in the next 10 years. B) In many developing countries, the population is doubling every 10 years. C) The malnourished proportion of the population has decreased since 1970. D) Populations growth is more rapid in the U.S. than in the developing countries. E) By 2025 we expect the population to reach 10 million.
What physical change of state is the opposite of boiling?
What will be an ideal response?
When using a utility knife, place a piece of scrap material under the object you are cutting in order to _____
a. see the object more clearly b. keep the blade sharp c. protect the surface under the object d. avoid electrocution