The most common igneous rock is formed from
A) basaltic magma.
B) andesitic magma.
C) granitic magma.
D) none of these
Answer: A
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Which one of the following volumes is largest?
A) 500. cm3 B) liter C) quart D) cc E) cubic inch
A hornet circles around a pop can at constant speed once per second in a path with a 12-cm diameter. We can conclude that the hornet's wings must push on the air with force components that are
a. straight down. b. down and inwards. c. down and outwards. d. down and backwards. e. down, inwards and backwards.
To study the energy of photoelectrons we measure
A) the potential difference required to stop them. B) the distance traveled in a given time. C) the time taken to travel a given distance. D) their temperature.
Which of the following in not a factor that prevents molecular cloud contraction?
a. thermal motion b. a force exerted by a magnetic field c. orbital motion d. turbulence