Recent content by Bailey

But in this case, wouldn't the mass is the main factor in contributing to the difference in ratio? So wouldn't A be "more" correct than B given those two choice. Here is the full solution in the book: The force of air resistance is dependent on the surface area, the shape, and the velocity of...

Assuming air resistance, when a tennis ball and a feather are dropped from the same height? Which statement is true: A: Tennis ball has more mass so it will fall faster. B: Tennis ball has less surface area so it will fall faster I think the answer should be A, but the textbook say B is true...

Both were not given, but I assume 180 degree for max scattering?

Homework Statement Consider a blackbody contain atoms that typically produce photons with energy of about 7eV. Estimate the number of photon-electron collision each photon undergoes before it escape the object. Assume the blackbody has a temperature of 1000K. Homework Equations λ2 - λ1...

I have very limited programming experience, only done VB in the past and excel and access to some extent. I'm trying to creat a simple program for this problem: An owner a hairdressing salon want to keep track of its employee's daily workload. Basically she want each employee to input basic...

omg.lol. never mind. our prof emailed us witha hint on this question -_-" the magnitude of the electric field = 1/2(sigma/epsilon) epsilon = permittivity of free space. well i ended up with 3.22x10^-6 C , which is correct. (but wasted so much time on it)

not sure why i keep getting it wrong....maybe caz i misunderstood some concept or something. anhyoo...here is it: A cork ball of mass 5.20 g is placed between two very large horizontal plates. The bottom plate has a uniform charge density of +0.22E-06 C/m2, whereas the upper plate has a...

personally i like stewart book, its compact & many examples & fast learning. btw what make u think u can criticize him (i assume ur in calculas II atm)? can u do better? last note: if u hate boring class, do what i do sometime. skip 60% of the lecture, & start reading text 3 night before...

ah, ic, thanks guy. it seem to clear thing up quite a bit.

the questioon is this: A balloon of radius 34.5 cm is sprayed with a metallic coating so that the surface is conducting. A charge of 1.05 × 10-08 C is placed on the surface. What is the potential on the balloon's surface? how i solved it: -apply the guass law, which gives me the Electrical...

what can i say... i can be a complete idiot sometime...lol btw...thx for the reply guys.

OMG! the answer is -1.13E+06 C! damnit...b/c i use the constant at the text which doesn't state a negative sign...so....doh! lol lol lol...

omg.i tried it ( 1.13 X 10^6 C ). n its still wrong. 2 try left now...lol edit: reply to edit post from above: well.i know the system will tell me if i need more digit or if i used the wrong unit.

nah.i got 3 try left :( can't waste it. the system basically detect if more/less digit is require.

err.can u give me ur full answer? then i can check if its right. basically i get from 21.10cm^3 to 21.1 grams -21.1 g / 18 g = mol of h2O -mol of h2o * 6.02x10^23 = molec of h2o -molec of h2o * 10 = total e -total muitliply by 1.6x10^-19 = 1129084.44 (is differ from my last answer...