What is the speed in meters per second of a deep water wave with a wavelength of 5 meters?
A) 1.79 meters per second
B) 2.8 meters per second
C) 3.49 meters per second
D) 7.8 meters per second
E) 11.45 meters per second
B
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A farmer begins to grow lettuces in tanks, running water from fish tanks through the lettuce plants as fertilizer and then returning the water to the fish tanks. This is an example of ____________________.
Fill in the blank(s) with the appropriate word(s).
Two identical arrows, one with twice the kinetic energy of the other, are fired into a hay bale. The faster arrow will penetrate
A) the same distance as the slower arrow. B) twice as far as the slower arrow. C) four times as far as the slower arrow. D) more than four times as far as the slower arrow. E) none of the above
In modern world trade,
A) some places are still completely isolated and dependent on local resources. B) all parts of the world have eagerly, voluntarily participated in world trade. C) virtually all peoples have moved from self-sufficiency and cultural isolation to trade and cultural exchange. D) all trade is regulated by the United Nations.
Hunters and gatherers may have been the "original affluent society" as they maintained a balance of harmony with the natural world, religion, and ample leisure time
Indicate whether the statement is true or false