Are we just really lucky that the time it takes for Earth to orbit the sun is 365.25 days? I mean if it was something like 365.71 days, then we couldn't have our simple leap year every four years. We would have to have a 71 leap years every century, or even if we were to simplify it a bit, 7...
Yeah I meant 2s and 2p lol ^^'
I just want to know what difference there is between an electron with low energy and high energy. It's not like it's moving faster..
Ok, so I know that the 1p orbital is at a slightly higher energy state than the 1s orbital. And if an electron gets excited it can be promoted from the 1s to the 1p orbital. But what exactly is happening to the electron? How does it "store" the energy?
Since the s and p electrons overlap at...
Oh ok :) well they were asking for the work done...oh and correction. The answer sheet says 900J. But it's still different than my result (900kJ). And I'm still stuck with no clue. :( And I don't think power is involved, because we haven't covered the topic yet.
Ok I get that. But if the unit of frictional force is N/m, then it's not a force anymore, is it? Because unit for force is N and not N/m. Anyways: force would be:
150N/m * 6000m = 900000N.
v = 5m/s
N = 900000N
Then? Which formula should I use?
Homework Statement
It says: A car moves at a constant speed of 5.0ms-1 along a 6.0km road against frictional force of 150N per meter. How much work has to be done by the car to maintain its constant speed?
Homework Equations
W = F*d
The Attempt at a Solution
So I just did 150N *...