What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m2) on a highly polished silver surface?
a. 1.4 × 10^?2 Pa
b. 0.12 Pa
c. 9.0 × 10^?6 Pa
d. 4.5 × 10^?5 Pa
e. 2.3 × 10^?6 Pa
c
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Vaporization is the process in which
A) molecules go from the solid phase to the liquid phase. B) molecules go from the liquid phase to the gas phase. C) molecules go directly from the solid phase to the gas phase. D) electrons are stripped from atoms.
The isotope 64Zn has a nuclear radius of 4.8 × 10^?15 m. Approximately what is the nuclear radius of the isotope 27Al?
a. 2.0 × 10^?15 m b. 2.7 × 10^?15 m c. 3.6 × 10^?15 m d. 4.0 × 10^?15 m
A zoom lens for a camera is adjusted to change its focal length from 38 mm to 304 mm. If the same amount of light is to be admitted to the lens in both cases, what is the final f-number if the original f-number was f/2.0?
What will be an ideal response?
When Earth was young, its atmosphere had no free ____
a. nitrogen b. oxygen c. helium d. carbon dioxide e. water vapor