Which property does color best represent?
a. velocity b. thermal energy
c. temperature d. heat
c
You might also like to view...
How does the discovery of a comet typically differ from that of an asteroid?
What will be an ideal response?
A 10-?F capacitor in an LC circuit made entirely of superconducting materials (R = 0 ?) is charged to 100 ?C. Then a superconducting switch is closed. At t = 0 s, plate 1 is positively charged and plate 2 is negatively charged. At a later time, Vab = +10 V. At that time, Vdc is
a.
0 V.
b.
3.54 V.
c.
5.0 V.
d.
7.07 V.
e.
10 V.
A 2.0-g string that is 0.67 m long is under tension. The string vibrates at 700 Hz tone in its third harmonic, and this vibration causes a sound wave. What is the wavelength of the sound? The speed of sound in air is 344 m/s
A) 0.49 B) 0.55 C) 0.61 D) 0.67 E) 0.45
Suppose you lived at Earth's equator. Which of the following statements would not be true?
A) The north celestial pole is directly on your horizon, due north (with Polaris quite nearby). B) The south celestial pole is directly on your horizon, due south. C) Every day of the year, the Sun is above your horizon for 12 hours and below it for 12 hours. D) The celestial equator goes through your sky from due east on your horizon, through 50° altitude in the south, to due west on the horizon. E) No stars are circumpolar.