Recent content by slasakai

Homework Statement A Particle energy A trapped in infinite square well. U(x)=0 for 0<x<L and U(x)=U0 for L<x<2L. find the wave function of the particle when A) E>U0 B) E<U0 C) E=U0. Homework Equations 1-D time independent Schrödinger equation. The Attempt at a Solution I have...

ok, so using Toricelli's Law you can get mass flow rate, and therefore the momentum of the water coming out of the valve, and therefore the force needed to keep it still. Thank you for your help!

not sure how, as the pressure at the top of the cylinder is not given and the you can't use the equation P=P0+ρgh as the liquid is flowing

Homework Statement A vertical cylinder with diameter 9 cm has an outlet on its side with diameter 3cm, water is filled to height 50cm and the outlet is 5 cm above the bottom of the cylinder. the outlet is closed by a valve, calculate the force required to stop the cylinder from moving when the...

Oh sorry I didn't realize. yep, did that and managed to get L/3 for COM, and managed the rest of the question! Thanks for your help

BUT to be honest with you I'm getting myself more and more confused with this question, I''m not really sure where I'm going anymore with it. I Do you know the correct answer?

sorry, I was reading that of my old piece of working, I have the correct answer up now :)

the mass M=1/2 * KL^2

I worked out that COM is (KL^3/3M) along the rod

I worked out that COM is (KL^3/3M) along the rod

Homework Statement a rod of mass M and length L is supported by a smooth horizontal floor and leans against a smooth vertical wall, the mass density increases linearly with p=kr where r is the distance from the wall and k is a positive constant. a.finf the moment of inertia of the rod with...

Homework Statement The linear mass density of a non uniform wire under constant tension decreases gradually along the wire so that the incedent wave is transmitted without reflection. the wire is uniform for* -∞≤x≤0 In this region, a transverse wave has the form y(x,t) = 0.003cos(30x − 60t)...

Fluid Mechanics Question! Help needed :( Homework Statement It has been proposed that we could explore Mars with inflatable balloons. the density of the Martian atmosphere is 0.0154kg/m^3 (ignore that this varies with temperature). Suppose we make the balloons out of a thin tough plastic...

thank you so mcuh haruspex, you have literally helped me so much by spotting that error. It was driving me nuts trying to figure out where I'd one wrong

Help with error analysis! urgently needed Homework Statement Using the theoretical prediction of t, find the errors of both t and x, . The problem is based on an experiment I did in Labs, In which a small metal ball was fired at 40° (uncertainty 0.5°) to the horizontal, at a height,y= 1.095m...