Recent content by p0ps1c1e

1. A charge density ρ (charge per unit volume) is distributed uniformly throughout a non-conducting cylinder of radius R. What is the magnitude of the electric field a distance r = R/2 from the cylinder's axis? Homework Equations E ∫dA = q(interior)/ε0[/B]3. So I tried doing EA =...

Thanks. I guess I just need to review this chapter some more

So W1 = 1/2k*(1.4)^2 = 0.98k W2 = 100 WorkTotal = 1/2k(2.9)^2 = 4.205k Then I put it together 4.205k = 0.98k + 100J so k = 31 N/M ? Also, I thought 1/2kx^2 was for potential energy of a spring. So I'm kind of confused about the difference between the two now

During a test experiment, the engineer finds an ideal very light spring has already been stretched 1.4m from its original length. He also finds that he needs to perform 100J of work to further stretch this spring an additional 1.5m. What is the value of the spring constant for this...

Oh derp... haha. Thanks. I'm looking through my old exams and I'm finding so many little mistakes like that.

Three blocks are connected as shown in the uploaded picture. The strings and friction-less pulleys have negligible masses, and the coefficient of kinetic friction between the 2.0 kg block and the table is 0.17. What is the acceleration of the 2.0 kg block? Homework Equations ∑F = ma The...

I figured it out. Thanks a lot!

Yeah that sounds right... I originally had it that way but my TA drew it this way. It really confused me haha I'll try it that way and let you all know how it works out

Homework Statement Two identical, uniform beams weighing 260 N each are connected at one end by a friction-less hinge. A light horizontal crossbar attached at the midpoints of the beams maintains an angle of 53 degrees between the beams. The beams are suspended from the ceiling by vertical...

Hello everyone I am a geophysics undergraduate student at the University of Houston. Just started in university physics I and enjoying it so far and I would like to become a part of this community