Recent content by daewoo

Homework Statement Suppose you let identical pith balls come in contact to make q1=q2 would the charges be equal if the pith balls were of different size? Homework Equations F=k(q1)(q2)/r^2 The Attempt at a Solution I would think they wouldn't be, because doesn't the charge...

what i tried doing now was since it said For a log Ksp of -36.6 pKsp = -log[x] log[ksp] = -36.6 2.51x10^-37? [3x]^3[4x]^4 = ksp 6912x^7=2.51x10^-37 x=1.67x10^-6 -log 1.67x10^-6 ph = 5.77 but that's wrong too, the answer is 5.11 so anyone have any ideas?

Homework Statement A 10.02 mL solution of chemical A4+ is determined by precipitation titration with 40.07 mL of 0.03015 M titrant B3-. The reaction stoichiometry is given by 3A4+ + 4B3- => A3B4 (s) For a log Ksp of -36.6, what is pB3- at the equivalence point? You must express your...

Homework Statement basically I am suppose to linearize d=vit + 1/2at^2 into d/t^2 vs 1/t, t/d vs t^2/d and 1/d vs 1/t and its asking which graphs would be linear and non-linear. Homework Equations d=vit + 1/2at^2 The Attempt at a Solution all i know is that in order to linearize this i...

hm thanks, but how do you find out what P(B) alone is because i can't use that formula anyways.

Homework Statement Suppose that P(A) = 0.8 and P(A or B) = 0.9 , determine P(B) If a) A and B are independent b) A and B are mutually exclusive Homework Equations for Independence P(A and B) = P(A) x P(B) for Mutually Exclusive P(A or B) = P(A) + P(B) The Attempt at a Solution...

oh thanks for the help for the first one, The second question asks what's the probability that a person will be selected once two years in a row, so he's selected once in the first year, and the second year he is selected again.

Homework Statement Hey, i need some help with these two probability questions 1)Jeanie is a bit forgetful and if she doesn't make a "to do" list the probability that she forgets some thing is supposed to do is .1. Tomorrow she intends to run three errands and she fails to write them on her...

Hello, I'm currently living in Canada and about to enter University, I'm wondering about if I should consider going into this. I was wondering if someone could give me some help and tell me what the industry is like and if there are future job possiblities. Also wondering how much they...

i don't think it is 1800wats, because that ALONE = 15A, and we still haven't included the 750W microwave + the 300Wats of lightbulbs

hmm Okay So i have 1050Wats/120V = 8.75 A so then 750/120 = 6.25 together they equal 15, so then would it be 750? but I'm not counting the inital current of 2.5A so I'm doing somethin wrong.

if we consider the bulbs then it be 300W + 750Wats added which is 1.05 x 10^3 but that doesn't equal the total power it can reach.

Hey, i got a circuit question, and I'm not sure if i did it right, and was wondering if anyone could show me how to do it A 750W microwave oven is plugged into an outlet and turned on. All three lights are on. What is the maximum power rating of a kettle that could be operated in the other...

I have some questions in comparing series and parallel circuits Which circuits contain the greatest current? Which circuits dissipate more power? and which circuits have a larger voltage drop? is there any way in figuring this out, by just theory or do the numbers intrepret these questions...

I have quiz coming up soon, and my teacher hinted that I had to find a formula for electric force using variables of mass, gravity, and an angle. "Fe" = eletric force, |E| = field strengh, q= charge in Columbs. To find eletric force all i know is Fe = kq1q2/r^2 , Fe = |E|q anyone got...