Hydrogen boils at 20K. What is the boiling point of hydrogen on the Celsius scale?
K is 273.15 degrees plus the celsius. so take 20(K) and minus 273.15 this would give your answer in celsius
thanks.. One more question
What is the volume of a board that measures 1.8 by 8.8cm by 30.5 cm?
sorry my sister was on here and so my first question was post under devon
v=length x height x depth
483.12cm ?
right. Have you talked about significant figures yet? If so, I would round it to two significant figures because 1.8 and 8.8 have two s.f. in them. Therefore, I would round to 480 (with no period) or 4.8 x 10^2 cm^3.
yes we talked about significant figures. Thanks. There's another part on my paper asking for the symbol and meaning of the prefixs pico-, kilo-, micro-, and centi- where can i find this?
kilo is 1000 times(10^3). centi is 1/100th(10^-2). micro is 1/1,000,000th (10^-6). pico is 10^-15. Here is a very good site for all of the SI units.
http://physics.nist.gov/cuu/Units/prefixes.html
That's correct! For the prefix pico-, it represents 10^-12, not 10^-15. However, for your question, you were looking for the symbol and meaning of the prefix pico-, kilo-, micro-, and centi-. Here are the correct answers:
- The symbol for pico- is p, and it means one trillionth (10^-12).
- The symbol for kilo- is k, and it means one thousand (10^3).
- The symbol for micro- is μ, and it means one millionth (10^-6).
- The symbol for centi- is c, and it means one hundredth (10^-2).
You can find more information about SI units and prefixes on the National Institute of Standards and Technology (NIST) website at http://physics.nist.gov/cuu/Units/prefixes.html.
The symbol and meaning of the prefixes are as follows:
- pico- (p): 10^-12 or one trillionth
- kilo- (k): 10^3 or one thousand
- micro- (µ): 10^-6 or one millionth
- centi- (c): 10^-2 or one hundredth
You can find more information on SI units and their prefixes at the following website: http://physics.nist.gov/cuu/Units/prefixes.html