Recent content by weirdobomb

I think I have solved my question, I was over thinking it. The half-reaction is given as it is and by looking at it's form, it is the cathode. Thus Cu+ + e- => Cu is the anode.

Homework Statement The solubility product for CuI(s) is 1.1 x 10^-12. Calculate the value of cell potential for the half-reaction CuI + e- => Cu + I- I find the other half reaction is Cu+ + e- => Cu E=0.52V Homework Equations I use the Nernst equation to solve for the standard cell...

I correct my answer to t = 8.33 x 10^-8 s which screws up everything. y = 3.2 I don't care about the answers for (a) and (b). I really want to know how to find the velocity for particle measured on Earth.

10. The average lifetime of a pi meson in its own frame of reference is 2.6 x 10^-8 s. If the meson moves with a speed of 0.95c, what is (a) its mean lifetime as measured by an observer on Earth and (b) the average distance it travels before decaying, as measured by an observer on...

Yes it's weird since dilated should mean longer, which corresponds to me who is outside the spaceship experiencing a longer length of time. I guess I'll just memorize this example.

Then if the guy after he gets off the spaceship writes down the time he experienced on the trip and I, who was always at rest with the planet, take that time to calculate how much time elapsed for me, would the result I get be called the dilated time?

Reposting to this section of the forum instead of the Introductory Physics homework section. So let's say a guy travels at 0.5c in a spaceship from planet 1 to planet 2. Am I right in saying that: proper time = time measured inside space ship proper length between planets = length the...

But how would I get from cosθ + sinθ to √2 cos(θ-∏/4) I can expand and get the original expression but don't understand the other way around.

cosθ + sinθ = √2 cos(θ-∏/4) what are the steps in between?

is there some sort of proof? or should i take it as it is for now?edit: nevermind, i read e on wikipedia.

Homework Statement Would you give me a clue as to how, limit as z approaches infinity, [[1 + (1/z)]^z]^(1/3) = e^(1/3)Homework Equations The Attempt at a Solution

Quick question:since x0 and a are points on the graph, is it say to say that the first derivative of S is 0 since they are constants?

Am I going in the right direction?

I think fixed point P(a,b) means that, plug in "a" into equation L results with "a." I get S = (x0-a)/x0^2

Homework Statement Suppose P(a,b) is a fixed point in Quadrant 1 of an xy-plane and line L is descending in the plane such that P is on line L. Let Q=(xknot,0) and R=(0,yknot) be the x and y intercepts for line L and let S= 1/(xknot + yknot) 1. Express S as a function of xknot 2. Find...