Recent content by fallen186

Homework Statement Why does a transistor with a constant V_{B} (e.g. V_{B}=1V) only need V_{C} \approx 0.3V to act as a current source; If V_{C} < V_{B} doesn't that mean the transistor is not in forward active mode and thus not a mode we want to work in. Homework Equations The...

Homework Statement ** My book doesn't have any solutions in the back , and I trying to find out if I am doing the problems correctly. My book is Modern Physics for Scientists and Engineers by John C. Morrison. If you know anywhere I can find the Answers. I would greatly appreciate it! The...

Homework Statement Suppose that a beam of light consists of photons having an energy of 5.4 eV. what is the wavelength of the light? Homework Equations hc = 1240 eV*nm E = \frac{hc}{\lambda} The Attempt at a Solution 5.4eV = \frac{1240eV*nm}{\lambda} \lambda =...

Homework Statement Find the length of the smallest standing wave that can be formed with light having a frequency of 600THZ. Homework Equations f = 600*10^{12}Hz c = 2.998x10^{8}\frac{m}{s} \lambda f=c The Attempt at a Solution \lambda f=c \lambda...

Homework Statement Suppose that an electron has a kinetic energy of 1.0 eV. What are the speed and the momentum of the electron? The book is Modern Physics for Scientists and Engineers by Morrison. If anyone knows where to get any of the answers(or solutions. solutions may be harder to...

I have a guitar with a pedal and amp. If i have the stuff close together (including the wires) won't the electric/magnetic fields have an affect on these devices? Also, if i have the wire that plugs into my guitar coiled, won't that create an inductor type of effect?

Homework Statement \Pi_{n=1}^{5} n Homework Equations My teacher assumed I learned this in calc 2 but I was never taught this. Can someone tell me what this thing is called?

Since there is one indepedent voltage source of 20 Volts that means the voltage drop across all the resistors should equal 20V. I would have made this look nice but the LaTex Isn't working. First Combine the Resistors in Parrallel: 1/R =(1/R_1)+(1/R_2)+...(1/R_N) 1/R = (1/6 Ohm) +(1/3...

Homework Statement "The electrical charge exists in discrete quantities, which are integral multipuls of the electronic charge, 1.6022 e -19 C" What does "discrete quantities" mean? and Why is electrical charge an integral multipul of the electronic charge instead of just a multipul of...

This is more of a conceptual question. Homework Statement -------------------- 1.KE_{Max} = hf-\phi 2.\phi = Work Function. The minimum energy required to free an electron with a photon 3.E=hf This it the energy of a photon --------------------- In my book it says that" hf > \phi"...

We have the index of refraction formula of n = \frac{c}{v} which essential states how much of a factor light travels faster in a vacuum than in this medium. Why don't they just have it as n=\frac{v}{c} so it states fractionally how much slower light travels in the medium than the speed of...

Homework Statement Light of wavelength 635 nm is used to illuminate normally two glass plates 16 cm in length that touch at one end and are separated at the other end by a wire of radius 0.02 mm. How many bright fringes appear along the total length of the plates? Homework Equations...

Homework Statement Three input and seven output. Do the karno map. This is suppose to be a seven segment display ( like the ones in digital clocks.) I am suppose to spell a word. My word was CAPSULE. I got an error and I can't trace it. [FONT="Courier New"] CAPSULE: A B C | a | b | c...

Homework Statement If a steam engine operates at half of its theoretical maximum efficiency (emax) and does work at a rate of W J/s, calculate how much heat is discharged per second. Homework Equations WMax = \epsilon_{Max}*Q_{H} W = QH-QC The Attempt at a Solution W =...

Homework Statement You pour a certain amount of water at 100C and an equal amount of water at 20C into an insulated container. THe final temperature of the mixture will be (a) 60C (b) Less than 60C (c) greater than 60C. Homework Equations The Attempt at a Solution I don't know what...