Recent content by Mugen Prospec

Could you give me maybe a walk through on how to find that or even the problem. I am really at a loss, I missed a week of classes because i was sick.

I know the speed of light is invariant. The way I worked it was putting it through the Lorentz time transform solving for v. then put that v in the x Lorentz transform

Homework Statement Two events occur at the same place in a certain inertial frame and are separated by a time interval of 4 seconds. What is the spatial separation between these two events in an inertial frame in which the events are separated by a time interval of 6 seconds? Homework...

ok I think i got it. thank you

Homework Statement 3ti+ 8t^{(3/2)}j + 12t^{2}k 0 \leq t \leq 1 Homework Equations The Attempt at a Solution I thought you are supposed to take the derivative of all three then square that. those all go into the length formula My book says answer should be 15 but I am not...

OK I just put it in and it said it was wrong so I don't care anymore. I think its right as do all of you so I am going with the homework having a typo in the answer. Thanks again

ok i have got to the that point is that answer right? then you just substitute the 1 in and that's the answer? I just want to know that I did it right my online homework is picky about the answer format. Thanks to all

Arc length is the Integral of sqrt(1+(f '(x))^2) so Derivative of the equation is 12x^1/2. Then I believe you are supposed to square that. Thats the same as (sqrt(12x))^2 right? so I tired it like that I also did 12x^1/2 * 12x^1/2= 144x so then I know you finish of the integral. I used U...

Homework Statement y = 5 + 8x^3/2 from 0 to 1 Homework Equations The Attempt at a Solution I have tried it a few times Keep getting variations of 1+ 12\sqrt{12}. I would like some to give me a step by step how to work it. Something is killing me on this I am lost.

Oh ok so the total kinetic energy plus the spring energy equals the original energy of the system. I might not have said the right but I understand what your saying. I was just having a hard time figuring out where the energy went but then, like you showed, it wasnt a perfectly elastic...

Homework Statement In the figure below, block 1 (mass 1.6 kg) is moving rightward at 8 m/s and block 2 (mass 4.2 kg) is moving rightward at 2.8 m/s. The surface is frictionless, and a spring with spring constant of 1120 N/m is fixed to block 2. When the blocks collide, the compression of the...

just did x(1+co(2x)/(2)) Do i distribute or use by parts now?

OK I tried it and it just got more complicated. Whats the next step?

ok Ill check it out thanks

I got the the answer to be [SIZE="3"]59(\frac{1}{4}[SIZE="3"]x sin(2x) + \frac{1}{8}[SIZE="3"]cos(2x) + \frac{x^2}{4}) But this was from my calculator I still don't know how to do it.