What factors does the resistance offered by a piece of conductor depend upon?
A. neither the geometry nor the material of the conductor
B. material of the conductor
C. only the geometry of the conductor
D. both the geometry and the material of the conductor
Ans: D. both the geometry and the material of the conductor
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A star is observed with a surface temperature of 3,000 K and a luminosity of 10?2 solar. What is the approximate radius of this star?
A) 1 solar radius B) 0.3 solar radius C) 0.1 solar radius D) The radius cannot be determined.
The Pacific Ocean southwest of the United States is the source region for the ______________ type of air mass
a. cP b. mA c. mT d. mP
For a mass suspended on a spring in the vertical direction, the time for one complete oscillation will depend on:
a. the value for g (the acceleration due to gravity). b. the distance the mass was originally pulled down. c. the maximum speed of the oscillating mass. d. the time doesn't depend on any of the above.
A substance with a greater specific heat ________ has a larger heat capacity
A) always B) never C) seldom D) sometimes