A saturated hydrocarbon contains only ______________ bonds, and its hydrogen content is at a maximum
Fill in the blank(s) with correct word
single
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If you sit in a boat near the edge of a river channel, you might notice the water moving more quickly on the side away from the shore (the channel side). If you are initially moving with the river, you will be pushed
A. into the channel by the turbulent flow of the water. B. toward the shore because the water flow is laminar around the boat. C. toward the shore because the water pressure is smaller on the shore side. D. into the channel because the water pressure is larger on the shore side.
Which of the following is not a fundamental quantity?
a. Weight b. Length c. Time d. Mass
Two wires support a post, with dimensions as shown in the figure. If d = 14 m, what is the value of x?
a.
7.5 m
b.
6.5 m
c.
18.3 m
d.
5.2 m
The radioactivity due to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160
counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about A) 5,700 years. B) 11,500 years. C) 14,800 years. D) 17,200 years. E) 23,000 years.