In many cartoon shows, a character runs of a cliff, realizes his predicament and lets out a scream. He continues to scream as he falls
If the physical situation is portrayed correctly, from the vantage point of an observer at the top of the cliff leaning over the edge, the pitch of the scream should be A) higher than the original pitch and constant.
B) higher than the original pitch and increasing as he falls.
C) lower than the original pitch and constant.
D) lower than the original pitch and decreasing as he falls.
E) It is impossible to predict.
D
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We find from Gauss's law that the flux through a closed surface
A. is proportional to the net charge enclosed. B. is inversely proportional to the net charge enclosed. C. is proportional to the square root of the charge enclosed. D. is zero. E. is less the larger the closed surface.
If the Moon is 3rd quarter phase, when does it rise?
A) never B) noon C) sunset D) sunrise E) midnight
Compared to Jupiter, the element ________ is notably less common in Saturn's atmosphere, perhaps condensing to fall toward the core as rain
Fill in the blank(s) with correct word
Two metal rods, one silver and the other copper, are both immersed at one end in a steam chamber at a temperature of 100°C. The other end of each one is in an ice water bath at 0°C
The rods are 5.0 cm long and have a square cross-section that is 2.0 cm on a side. No heat is exchanged between the rods and the surroundings, except at the ends. How much total heat flows through the two rods each minute? The thermal conductivity of silver is 417 W/m ? K, and that of copper is 395 W/m ? K. A) 20 kJ B) 39 kJ C) 47 kJ D) 49 kJ E) 11 kJ