A celebrity holds a press conference, which is televised live. A television viewer hears the sound picked up by a microphone directly in front of the celebrity. This viewer is seated 3.3 m from the television set. A reporter at the press conference is located 5.3 m from the microphone and hears...
Oooohhh now I see where the resistance comes from. I was using a number froma different problem somehow. Thanks a lot your answers actually helped me realize what I was doing!
The drawing shows a copper wire (negligible resistance) bent in a circular shape with a radius of .5 m. The radial section BC is fixed in place, while the copper bar AC sweeps around at an angular speed of 15 rad/s. The bar makes electrical contact with the wire at all times. The wire and bar...
Capacitors, Hard Problem
Four identical capacitors are connected with a resistor in two different ways. When they are connected as in part a of the drawing, the time constant to charge up this circuit is 0.67 s. What is the time constant when they are connected with the same resistor as in part...
Dielectric Strength problem. Please Help! :(
If anyone can let me know if I went about this right, I'd appreciate it, as well as any advice.
The dielectric strength of an insulating material is the maximum electric field strength to which the material can be subjected without electrical...
Sound Waves Problem and I'm Stuck! Please Help!
Linear Superposition
The sound produced by a loudspeaker has a frequency of 12,000 Hz and arrives at the microphone via two different paths. The sound travels through the left tube LXM, which has a fixed length. Simultaneously, the sound...
Otto Cycle?? Please help ASAP!
I have a question that my entire class is confused over. I need help on it for a test, but I have no idea where to go with it. It doesn't seem to fit any of the equations or situations I have been using.
The question is: A four-stroke engine runs on the otto...
Thanks, anytime before tomorrow at 11 would be great, but I appreciate that advice...
PS: I believe that answer is supposed to be 4.1 or something... I can't remember what,
Hello, I have a test coming up and this is a question that will be on it...
The wall of a house is composed of solid concrete with outside brick veneer and is faced on the inside with fiberboard. The fiberboard width is 2 cm, the concrete width is 15 cm, and the brick width is 7 cm. If the...