That looks like some pretty blatant self promotion :p although it does look like it would have been a handy application to help with learning mechanics.
I have a 3 x 3 matrix
A =
(0 -1 -3)
(2 3 3)
(-2 1 1)
Let & represent lambda here.
I am trying to find the eigenvalues of A.
I start off by taking the characteristic equation of A and end up with -&[(&-3)(&-1) -3] + (2& - 8) - 3(-2& + 8)
yet can't then get that factored down...
Homework Statement
The coefficient of friction between the block of mass m1 = 3.00 kg and the surface in the figure below is μk = 0.335. The system starts from rest. What is the speed of the ball of mass m2 = 5.00 kg when it has fallen a distance h = 1.45 m?
Homework Equations...
I could be wrong on this, but wouldn't the displacement be 0? There is no motion in the horizontal plane, there is only motion in the vertical plane and the ball returns to its inital starting position, hence displacement is 0.
v = u + at
v = final velocity, u = initial velocity, a = acceleration (i.e. gravity of 9.8 m/s^-1 downwards), t = time
v = 16 + (-9.8)(2)
= -3.6 m/s^-1, i.e. the ball is now traveling downwards.
I realize I am using Vx = xsinTheta instead of Vx = xcosTheta, although why is it that? When drawing a triangle of this and doing the trig, I get the first equation, could someone please explain this.
Homework Statement
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.80 m/s at an angle of 15.0° below the horizontal. It strikes the ground 6.00 s later.
(a) How far horizontally from the base of the building does the ball strike the...
The system below is in equilibrium with m = 6.2kg. The spring scales are in Newton units.
Please see the attached diagram http://img51.imageshack.us/img51/9729/74379922.png
I'm not sure what the spring scales would show in this case. Is it simply 0?
I'm having some trouble with the below vector question. I've got an answer although I'm not sure if it is correct or not.
Homework Statement
A car travels due east with a speed of 40 kph. Rain drops are falling at a constant speed vertically with respect to Earth. The traces of the rain...
Sorry didn't see this forum. I need some help with calculating simple theoretical parallax error: https://www.physicsforums.com/showthread.php?t=257036
Homework Statement
Experiment 15.2 (note this is from a book about 5 years old, and the book has no solutions!). I am simply unsure how to calculate between parallax with 1% error and parallax with 50% error etc. Please see the scan I done of the page...