The air pressure is 14.8 lb/in2
a. What is the approximate height, in centimeters, of a mercury column that this pressure would support?
b. What would be the height, in meters, of the column for a water barometer?
a . 76.5 cm
b. 10.4 m
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The ancient Greeks get a lot of attention for their contributions to science because ________
A) they were the only ancient culture that kept written records of their astronomical observations B) they were the first people to realize that Earth is a planet orbiting the Sun C) they were the first people known to try to explain nature with models based on reason and mathematics, without resort to the supernatural D) the books of every other culture were lost in the destruction of the library of Alexandria
An incandescent lightbulb is rated at 100 Watts when plugged into a 110 V-rms household outlet. Calculate the resistance of the filament and the rms current
a. 12.2?, 0.91 A (rms) b. 10?, 1.0 A (rms) c. 110?, 1.0 A (rms) d. 121?, 0.91 A (rms) e. 11?, 1.1 A (rms)
For an electron in the M (n = 3 ) shell, find (a) the largest possible orbital angular momentum it can have, and (b) the smallest possible orbital angular momentum it can have
Express your answers in SI units, and for each case indicate the subshell (s, p, d, ...) of the electron. (h = 6.626 × 10-34 J ? s)
Monochromatic light shines on a surface with work function 1.80 eV. The maximum energy of the emitted photoelectrons is 0.620 eV. What is the wavelength of the monochromatic light?
A. 200 nm B. 290 nm C. 689 nm D. 602 nm E. 512 nm