To see a sundog at sunrise, you should look toward the ____
A) north
B) south
C) east
D) west
C
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A 2-kg pop gun hangs horizontally from a pair of strings in order that recoil can be measured. The pop gun fires a 0.01-kg pellet at a speed of 200 m/s. The recoil velocity of the pop gun is about
A. 0.1 m/s. B. 0.01 m/s. C. 0.001 m/s. D. 1 m/s.
Including environmental costs, wind power is the cheapest source of electricity.
Answer the following statement true (T) or false (F)
A marine scientist who studies the movements of the seafloor at mid-ocean ridges and subduction zones is a ____
a. physical oceanographer b. marine climatologist c. chemical oceanographer d. marine geologist e. marine biologist
The deformation of rock material responding to the passage of P waves is oriented:
a. parallel to the direction of transport b. perpendicular to the direction of transport c. oblique to the direction of transport d. both parallel and perpendicular to the direction of transport