I'm not sure what round off means.
If round off means raise anything with a decimal >= .5 the next whole number and anything with a decimal <.5 to the next whole number down, then the example will still lead to 18 pieces being assigned.
Thanks for the replies.
I don't mind so much favoring someone more than others as long as:
(ai<=wi) is not violated
we assign exactly P pieces of pizza. no more, no less
only whole slices can be assigned (no fractions for ai)
For example, if we have
w1 = 25
w2 = 9
W = 34
P = 17
Then...
Hi,
Let W be the sum of all the people's weights, let P be the total number of pizza slices available.
If:
I have P slices of pizza (P<=W)
I have n people I want to split the pizza with
I want to use people's weight to determine how many slices they get (more weight -> more slices)
I don't...
In the past i've made these bell siphons following these instructions: http://www.affnanaquaponics.com/2010/02/affnans-valve-detailed-explanations-of_9459.html
I've had good success but that was just blindly following instructions and now I am just very interested in knowing the effects of...
It's definitely growing in popularity! I think it's fun because you get to combine 3 hobbies: raising fish, growing plants, and building hydraulic systems (siphons, pumps, waterfalls, filtration, etc.)
Apparently the physics of a bell siphon are pretty complicated, but do you think you can help...
I'm trying to build a home aquaponics system, and a key component of the design I got off the internet is a bell siphon. So I'm trying to understand the physics of this siphon effect so I can optimize the weight and dimensions of the siphon to fit the size of my system.
From what I read on the...
I have an electric motor that I am using to turn an auger to dispense pet food. I want to measure the average torque required to turn this auger at a given rpm.
I know Powerin = Voltage into motor * Current into motor
and Powerout = Torque exerted by shaft * RPM of auger
and Powerout...
It takes 120 J of energy to light two 60-watt light bulbs for 1 second, right? And the average phone takes 18000 Joules of energy to completely charge so that's only 150 steps!
... I'm sure there is something wrong with that line of thought, haha
I was inspired by this article
http://science.howstuffworks.com/environmental/green-science/house-music-energy-crisis1.htm
to wonder if one could put piezoelectric crystals in the sole of a shoe and perhaps harness the energy to charge their iPod?
Can someone let me know if this is feasible...
The equation F= ke(|q1q2|)/r2 looks good.
So if I plug in 3.204 × 10^-19 coulombs for q1 and -3.204 × 10^-19 coulombs for q2 (because O2- has a net charge equal to -2 times the charge of an electron and Cu2+ has a net charge equal to twice the charge of an electron), then I get
2.307*10-8...
Well I don't know the force equation, my teacher only gave us the equation for bonding energy...
Perhaps since energy=force*distance we can find force by dividing our energy equation by some distance?
I'm still stuck but I see now that z_1= 2 and z_2=-2.
Any more help?
Homework Statement
Calculate the attractive force between a pair of Cu2+ and O2- ions in the ceramic CuO that has an interatomic separation of 200pm.
Homework Equations
E_A= -\frac{(z_1\cdot e)(z_2\cdot e)}{4\pi\cdot\epsilon_o\cdot r}
Where z_1 and z_2 are the valences of the two ion...