Recent content by crazynut52

I get it now. Thanks guys I appreciate the help. This semster of modern physics is going to be tough.

yes I am using the same equation as you, but the answer in the back of the book is 3.93, not 1.34

i understand it is 2/3 the speed of light but am I using the right equation? using this equation I found that one second passes for A as 1.34 seconds passes to person B. But not sure how the book gets 3.92s as the answer

I have the attached equation but when I plug it, I don't get the same answer as in the back of the book... Here is the question Two observers, A on earth, B in a spacecraft whose speed is 2.0X10^8 m/s both set their watches to the same time, when the ship is abreast the earth. How...

I have the attached equation but when I plug it, I don't get the same answer as in the back of the book... Here is the question Two observers, A on earth, B in a spacecraft whose speed is 2.0X10^8 m/s both set their watches to the same time, when the ship is abreast the earth. How...

Can someone check my work and see if I am on the right track please? the problem is: if r(t) = <e^t, cost, sint> compute integral from pi to 0 of r(t)dt so I split it into three integrals, and ended up with (e^(pi) - 1)i + (0)j + (2)k does this sound right? Thanks

here is the problem, and I can't seem to get very far, compute the length of r(t) = <3t, 4cost, 4sint> from t=0 to t=1 i know the formula is integral from 0 to 1 of length of r'(t) but I keep coming up with 5, and it doesn't seem right, can someone please confirm or deny this. Thanks

its a curve of that function. I'm not sure on the range, I guess just enough to show the pattern. I believe it is a cos sin circle coming out the x axis.

r(t)= <t^2, cost, sint> Does anyone have a graphing program to make a picture of this, thanks.

Can someone give me a couple hints to get me started on this problem, I am not sure where to go next. Infinite line of charge has charge per unit unit length 4.8*10^-6 and lies along the x axis. A second uniform line of charge with charge/unit length -2.4*10^-6 is parallel to the x-axis at...

sure is easy when you figure it out... thanks for the help

I've been thinking about this problem for a while now, and I can't get it to work out. A 9.6X10^-6 C point charge is at the center of a cube with sides of length .5m What is the electric Flux through one of the six faces of the cube? I know the answer is 1.81X10^5 but I can't figure out how to...