What approximate weight of air is in a column 1-cm2 in cross section that extends from sea level to the top of the atmosphere?
A) 0.01 N
B) 10 N
C) 100 N
D) 1000 N
Answer: B
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James Hutton studied rock formations in his native Scotland to determine that the Earth is much __________ than previously believed, and that catastrophes _________ shaped the landscape.
Fill in the blank(s) with the appropriate word(s).
What feature(s) of this spectrum indicate(s) that Mars appears red in color?
A) the wavelength of the peak labeled 3 B) the wavelength of the peak labeled 6 C) the fact that the intensity of region 4 is higher than that of region 2 D) the fact that the peak labeled 3 is higher than the peak labeled 6
Uranus's orbital period is 84 years. How far is Uranus from the Sun?
What will be an ideal response?
A 15-?F air-filled capacitor is connected to a 50-V voltage source and becomes fully charged. The voltage source is then removed and a slab of dielectric that completely fills the space between the plates is inserted
The dielectric has a dielectric constant of 5.0. (a) What is the capacitance of the capacitor after the slab has been inserted? (b) What is the potential difference across the plates of the capacitor after the slab has been inserted?