I'm an English Literature major, so math's not really my forté. Here they are:
#1: A regular incandescent lightbulb radiates most strongly at a wavelength of 3000 nm.
a) How hot is the filament? give your answer in Kelvins
b) In which part of the spectrum does it emit the most radiation: visible, or infrared (heat)?
#2: Use the orbit of one of Jupiter's large moons to calculate the mass of Jupiter. You will need to use the size of the orbit and orbital period. Using the formulas mass= 4 X Pi-squared/G (universal gravitational constant) X A-cubed/P-squared (A=orbit, P=orbital period) A has to be in meters and P has to be in seconds. What i've figured out so far for this one is that A= 422,000,000 meters, and P= 270,432 seconds, but take in mind my calculations may be incorrect.
I would appreciate any assistance, even if it just points me in the right direction for figuring these out, because right now, i really don't know know where to start.
Thanks!!!
2007-06-08
08:49:08
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4 answers
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asked by
kelly c
1