A wave is described by y = 10 sin (4.0pt – 6.0px). If the equation is in SI units with the units suppressed, what is the wavelength of this wave?
a. 2/3 m
c. 1/6 m
b. 1/3 m
d. 0.50 m
B
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Which of the following are not found on Venus?
a. arachnoids b. coronae c. rolling plains d. lobate scarps e. high atmospheric pressure
Which statement best describes the surface of Ganymede?
a. dark and dirty ice, heavily pocked with craters b. old and dark on some portion, but cratered with a young bright grooved terrain c. icy crust free of craters with a liquid water ocean beneath d. covered in active sulfur-based volcanoes e. mostly water ice mixed with methane
A magnifier uses a:
a. diverging lens to form a real image. b. diverging lens to form a virtual image. c. converging lens to form a real image. d. converging lens to form a virtual image.
Which of the following lists the two key predictions of the Big Bang model that have been verified by observations?
A) (1) the existence of the cosmic microwave background and (2) the amount of helium relative to hydrogen in the universe B) (1) the existence of the cosmic microwave background and (2) the existence of dark matter C) (1) the existence of the cosmic microwave background and (2) the near-critical density of the universe D) (1) the predominance of matter over antimatter and (2) the near-critical density of the universe E) (1) the predominance of matter over antimatter and (2) the large-scale structure of galaxies