Recent content by ninjarawr

Homework Statement A square loop of wire surrounds a solenoid. The side of the square is 0.1 m, while the radius of the solenoid is 0.025 m. The square loop has a resistance of 30 W. The solenoid has 500 turns and is 0.3 m long. The current in the solenoid is increasing at a constant rate of...

thanks! that worked for me! But why do we do 4 times for each turn when we are only looking at one side?

I did use it to find torque, but did not use it when finding force. how do I use it in the solution? please tell me.

Homework Statement A rectanglular loop consists of 4 turns of wire carrying a current of 2.7 A. The loop is in the x-y plane, and the direction of flow of the current is shown in the figure. The loop has dimensions a = 1 cm and b = 6 cm. Consider a uniform magnetic field of strength 2.3 ×...

Two charges are located on the y-axis at positions -2 microC @ (0, 2m) and -1 microC (0,-2m). What are the x and y components of the electric field at position (2m,0)?

Thank you man! I forgot to add the parallel C2 and C3 and turn it into one circuit, then assume that they are in series with C1...I really appreciate the help

Capacitor Network (Please help!) Homework Statement In the circuit below, consisting of a battery and several capacitors, some quantities are known and some are not. The capacitors were completely uncharged before the battery was attached and we are considering the static situation. Circuit...

The statement "an increase in the entropy of the system will be exactly equal to the entropy decrease of the surroundings. So the net change in the entropy of the system and its surroundings is zero" is straight of a kaplan physics review book for the MCAT. It didn't make sense to me because it...

For example, an increase in the entropy of the system will be exactly equal to the entropy decrease of the surroundings. So the net change in the entropy of the system and its surroundings is zero. Putting this in perspective to all the systems and environments in our universe, how is the...

yeah...but what do I do with the "10x"?

Hello all, excited to be on the forums. I'm having trouble solving a problem from one of my past exams (prepping for final). Could you please guide me? The displacement associated with a wave on a string has the functional form y = 0.2 cos (10x - 4t). What is the wave speed? The answer...