Recent content by Erienion

Shouldnt the linear combinations look like this? \left(\begin{array}{cc}1\\3\\2\end{array}\right)= 1\left(\begin{array}{cc}1\\0\\0\end{array}\right)+ 3\left(\begin{array}{cc}0\\1\\0\end{array}\right)+ 2\left(\begin{array}{cc}0\\0\\1\end{array}\right)

What is the function you're trying to get a taylor series approximation for?

Because large storms produce lightening, which is just an enormous electrical discharge. The electric field produced by lightenings is enough to cause disruption to radio and tv. Also weather can have a purely physical effect on telecommunications, damaging/destroying masts etc.

Impulse = change in momentum / time. Guess you can start by finding dP

Well, you know that the mass is 2.5 Kg, now find an equation to find I, the rotational inertia, given that all of the mass is in the spherical shell.

What is this wave, water, light, sound what?

If you are walking at a non-constant velocity, this means that your velocity is changing, and therefore the rate that you pull the tape through the timer is changing. How do you think pulling the tape through at changing rates will affect the holes? If your position vs time isn't a straight...

Because the woman is exerting a force of 637 Newtons on the scale. You've answered your own question, yes the scale just reads the force, which is given my F=ma, which is just F = 65 * (9.8+2) = 767 N yes the scale again just reads the force, F=ma, which is F = 65 * (9.8-2) = 507 N...

If you know the velocity of the block with the bullet in it, and you know the weight of the block, you can calculate the total momentum of the system. I'm assuming the block was at rest when the bullet struck it, to that total momentum will be the momentum of the bullet before it hit the block...

What about a picture of a square pie with and equal sign to pi^2

Think of it as a mass of 2.4 Kg traveling at 6.67m/s, decelerating at a rate which you can derive from F=ma as it drives into the ground. Calculate the distance for the object to stop. If you calculate the acelleration the force of the ground gives, you can ask a simpler question by working...

I'm reluctant to post help on topics I'm not totally sure about, unfortunately, this includes most topics :(

So you have a line in 3d space, which is just a 3x1 matrix. when you want to transform this line you act on it with a transformation matrix, just the same as you would for a 2d line. I think that a really good linear algebra book is LInear Algebra - David C. Lay

The first thing to do is draw a picture of the problem.

I've just been doing some more and it looks like you've made a mistake, i got 1, 2, 3, 5, 8, 13, 21 Just looking at it makes me think its the fibbonachi sequence