Recent content by Shaunzio

Homework Statement Homework Equations When Diode is on Vd=0.7 V and Id=0 When Diode is off Vd<0.7 and Id>0The Attempt at a Solution I've been working on this problem for hours now but I just can't logic it out properly. I know the right model is supposed to be D1 ON and D2 OFF, but I can't...

Homework Statement So here is the problem: http://i.imgur.com/IlklC.png" I already know the answers but I can't figure out why it is the case. How do you know when the forces cancel out? Homework Equations The Attempt at a Solution The answers should be: a) 1,2 b)None c)...

Homework Statement Let A be a 2x2 matrix with complex eigenvalue (lambda)=a-bi, (b does not equal 0) and associated eigenvector v-> C^2. Show that A(Rev)=aRev +bImv and A(ImV)=-bRev +aImv. Where Re is real part and I am is imaginary part. Homework Equations The Attempt at a...

Hi sorry. I'm still pretty confused. Is there anyway you could elaborate?

Homework Statement show that if we define the following operation: let f=f(x) and g=g(x) be two functions in C[a,b] and define <f,g>=int(a to b) f(x)g(x)dx show that the conditions of therom are satisified with this operation. Use h=h(x) to help with part b this shows that this operation is...

Would the units for T be radians?

Homework Statement A satellite is in a circular, geosynchronous orbit (makes one revolution around Earth in 24 hours). Calculate the distance in meters from the satellite to the Earth's center. Mass of Earth = 5.97 x 1024 kg Homework Equations T=((2*Pi)*r^(3/2))/sqrt(GM) The...

Wow! Thank you so much. I finally get it. What a relief!

Ok I so I tried to use the interval from [3,5] and I got the answer of 1285.665. I'm still not sure what I'm doing wrong. Is that still the wrong interval?

Homework Statement Alabama Instruments Company has set up a production line to manufacture a new calculator. The rate of production of these calculators after t weeks is (dx/dt)=4,500[1-130/(t+9)^2] calculators per week. Production approaches 4,500 per week as time goes on, but the intial...

Ok...but I don't know how the angle affects the transit time from the top to the bottom. That's why I came here. If you could tell me that would be great. Thanks.

sorry for my poor grammar but I still don't understand. Would the person at the 30 degree hill reach first since the angle is greater and therefore giving a greater velocity?

If there are 3 people going down a hill at different angles but still starting at the same point, who will reach the bottom of the hill first? The first person is going down a slope of 30 degrees. The second person is going down a slope of 20 degrees. And the last person is going down a slope of...

thanks i figured it out :)

1. A 120kg sleigh is pulled by one horse at a constant velocity for a distance of 0.75km on a level snowy surface. The coefficient of kinetic friction between the sleigh and the snow is 0.25. (a) calculate the work done by the horse. (b) calculate the work done by friction. 2. F= W * S...