Recent content by Faux Carnival

Thanks for your reply. I was thinking of kinetic energy. They seem to be the same thing anyway. But my thinking is not flawed, right? In space, accelerating from 30,000 to 31,000 km/h is the same thing as accelerating from 50,000 to 51,000 km/h?

Hello, Isn't the theoretical max. speed in deep space unlimited? There is no friction. Therefore, any energy we add to the spacecraft will increase its speed. So can't the speed of light be reached? Thanks.

Hello everyone, I am fairly new to MATLAB. I have to approximate a root of a given function with Newton-Raphson method. I have a code that looks like this: (Newton.m) function [p0,err,k,y] = Newton(f,df,p0,delta,epsilon,max1) %Input - f is the object function % - df is...

Thanks Doc. But I still can't tell why the 300N-component rotates it clockwise. Because it's above point A, it seems to me that it would rotate counter clockwise.

[PLAIN]http://img137.imageshack.us/img137/8130/mompq.jpg Hi, here is a system with a force acting on it. As you can see the force's components are shown. In systems like this, I can't decide in which direction the components rotate the system. It is obvious that the 400N-component wants...

STEP 1 (ISOTHERMAL) Pi Vi Ti ---> Punknown Vm Ti STEP 2 (ADIABATIC) Punknown Vm Ti ---> 2Pi 2Vi 2Ti So, for the adiabatic process I applied TVγ-1 = constant. Ti Vm2/3 = 2Ti (2Vi)2/3 Isn't this correct? Another thing, is the change in entropy ΔS zero for adiabatic processes?

Homework Statement One mole of a monatomic gas first expands isothermally, then contracts adiabatically. The final pressure and volume of the gas are twice its initial pressure and volume. (Pf=2Pi and Vf=2Vi) Find the net change in the entropy of the gas. Homework Equations The Attempt at a...

Wow, thanks merry. I completely forgot about the linear wave equation. And is my solution for part b correct? (Taking the derivative of the function with respect to time to find the string velocity function)

Homework Statement y(x,t) = 3e-(2x-4t)^2 Consider the wave function which represents a transverse pulse that travels on a string along the horizontal x-axis. a) Find the wave speed b) Find the velocity of the string at x=0 as a function of time Homework Equations The Attempt at...

Thanks a lot Swap.

That's what I did. But I added the moment from the mass of the rod too. So k1L2θ + k2L2θ + MgLθ/2. That's equal to Iα. (α being the second derivative of θ) (k1L2θ + k2L2θ + MgLθ/2) / I is therefore w2. That's part a. For part b, wmax = wθ and Vmax = wθL...

Homework Statement [PLAIN]http://img441.imageshack.us/img441/6951/physics.gif As shown in the figure, one end (O) of a uniform rod of length L and mass M is pivoted to a wall. Two horizontal springs with force constants k1 and k2 are attached to the other end (P) of the rod. When the rod is...