If the temperature changes by
then what is the change in temperature in Celsius?
A. 40
B. 32
C. 26
D. 20
E. 15
D. 20
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General Questions: A girl attaches a rock to a string, which she then swings counter-clockwise in a horizontal circle. The string breaks at point P in the figure, which shows a bird's-eye view (as seen from above). Which path (A-E) will the rock follow?
A. Path A B. Path B C. Path C D. Path D E. Path E
A proton, moving north, enters a magnetic field. Because of this field, the proton curves downward. We may conclude that the magnetic field must have a component
A) downward. B) towards the east. C) towards the west. D) upward. E) towards the north.
The sound intensity level 5.0 m from a point source is 95 dB. At what distance will it be 75 dB?
A) 225 m B) 75 m C) 25 m D) 50 m
Based upon what you have learned in this chapter and what you have found in other sources, what are the current advantages and disadvantages of using low-carbon steel and graphite-reinforced epoxy as the chassis material for a low-cost automobile with a high fuel efficiency?
What will be an ideal response?