The atmosphere of Mars is made mostly of
A) nitrogen
B) carbon dioxide
C) hydrocarbons
D) ammonia
B
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In a hypothetical stream flowing downslope, stream discharge doubles while the channel remains the same size and shape. For this situation, what will happen to the stream's speed?
What will be an ideal response?
The types of current carried by the headlights of an automobile, and by a plug-in toaster in your kitchen, are
A) both DC. B) both AC. C) AC and DC, respectively. D) DC and AC, respectively. E) None of the above.
What is the angle of incidence on an air-to-glass boundary if the angle of refraction in the glass (n = 1.60) is 25°?
a. 40° c. 43° b. 25° d. 16°
Sketch five isotherms and appropriate heat flow lines for heat transfer per unit depth through a 5 cm x 5 cm square where the heat flow is from a high temperature corner and another isothermal as the side of the square.
What will be an ideal response?