Resistor A has twice the resistance of resistor B. When individually connected across a given potential difference, which one dissipates the most power; and when connected in series across the same potential difference, which one dissipates the most power?
a. A, A
c. A, B
b. B, B
d. B, A
D
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PVC that is _________has an increased elongation to failure relative to that of rigid PVC.
Fill in the blank(s) with the appropriate word(s).
If a wave has a frequency of 6 Hz, it has a period of
a. 1/6 s. b. 6.5 s. c. 6 s. d. 3 s.
A 360-nm thick oil film floats on the surface of a pool of water. The indices of refraction of the oil and the water are 1.50 and 1.33, respectively
When the surface of the oil is illuminated from above at normal incidence with white light, what is the wavelength of light between 400 nm to 800 nm wavelength that is most weakly reflected? A) 520 nm B) 540 nm C) 560 nm D) 580 nm E) 600 nm
A rock is thrown straight up with an initial velocity of 17.6 m/s. What time interval elapses between the rock's being thrown and its return to the original launch point? (Acceleration due to gravity is 9.80 m/s2.)
a. 3.60 s b. 1.80 s c. 2.70 s d. 3.06 s e. 3.96 s