electro problems

4. The electric field due to an infinite nonconducting sheet with uniform surface charge... Please see attached.

Vectors

Please draw pictures and describe wat is going on. I just got the equation r hat = r/mag r, but a brief lesson in vectors would be nice to cathch up to stuff below I need. Given position vector A = unit vector i hat and position vector B = i hat + j hat + k hat. Find unit vectors A,B,C,D. Then position vector C perdendic ...continues

Electricity and Magnetism

1. Four charges are arranged on a rectangle with sides of 2 cm and 5 cm respectively as shown in the figure. What is the magnitude of the force on Q3 ? Q1= 8mC Q2= -7mC Q3= 9mC Q4= -7mC 2. There are three large ch ...continues

Sound

1) Sound waves travel through an aluminum bar at a speed of 1400 m/s. If the frequency of the sound wave is 880 Hz, what is the distance between crests on a sound wave traveling through aluminum? 2) An airplane flies horizontally at a constant speed, piloted by rescuers who are searching for a disable ...continues

charges

Please place step by step solutions and answers on separate piece of paper and give answer please. Draw picures if needed - would be nice. 3. Figure 21-14 shows four situations in which charged particles are fixed in place on an axis. In which situations is there a point to the left of the particles where an electron will ...continues

charges

Please place step by step solutions and answers on separate piece of paper and give answer please. Draw picures if needed - would be nice. Also check current work to see if ok. 4. Figure 21-15 shows two charged particles on an axis... Please see attached.

capacitance

Please place step by step solutions and answers on separate piece of paper and give answer please. Draw picures if needed - would be nice. PLEASE DO all questions, again show all math, diagrams, etc. and only first 5 problems 1. Figure 25-19 shows plots of charge versus potential difference for three parallel-plate capacito ...continues

charges

Please place step by step solutions and answers on separate piece of paper and give answer please. Draw picures if needed - would be nice. Also chack current work to see if ok. and now please apply math to these answers. a. The 3rd particle needs to be placed in between the two charged particles. If it is placed to the righ ...continues

charge

Please show all work and diagrams plus equations used to solve problem. Thanks! 1) A small object has charge Q. Charge q is removed from it and placed on a second smal object. The two objects are placed 1 meter apart. For the force that each object exerts on the other to be a maximum, q should be: 2) Two small charged ...continues

charges

Please show all work and diagrams plus equations used to solve problem. Thanks! 1) Two identical conducting spheres A and B carry equal charge. They are separated by a distance much larger than their diameters. A third identical conducting sphere C is uncharged. SPhere C is first touched to A, then to B, and finally remov ...continues