Recent content by Hussman

jambaugh thanks for your reply I cannot go into too much detail about the device/system but as the valve is motorised I though it would be possible to work out loss of energy through heat and voltage output ect and work out how much power is used/wasted As for the pressure it involves no...

I have built a plumbing test rig for my project. I have a couple of electrical devices on this rig and need to find out the efficiency of them/the rig. I have looked online to find equations and have found all the relevant material except for the useful output energy. in all the examples they...

Ah yes didnt write it properly should be I = mgh - 1/2mv^2 - tf *theta / 1/2w^2 Thanks

After getting some results from experiments in the labs from the flywheel, measuring the time it takes for a mass to fall from a set height and the critical mass. I have to determine the moment of inertia I of the flywheel and its axle to estimate the frictional torque. The problem i am having...

I have managed to rearrange an equation give to me to make I (moment of inertia) the subject. I am now having problems working out the values for parts of it. I = moment of inertia m = mass g = gravity h = height v = translational speed of the mass falling Tf = work done against...

Nice one cheers

ok so you end up with mgh - 1/2*mv^2 - Tf*theta = 1/2*Iw^2 Would the lhs be divided by 1/2 w^2? Thanks

Im having trouble rearranging an equation to find a value for I. [The given equation is mgh = 1/2*Iw^2 + 1/2*mv^2 + Tf * theta My attempt was a bit of a stab in the dark as i am useless with rearranging equations. I = mgh/w^2 + 1/2*mv^2 + Tf * theta Many thanks

Hi all, I'm studying computer aided design at university but i have to complete an electronics module. My knowledge is extremely basic and my lecturer 'does not have the time to go through basic physics' so i need a little help. I have been asked to... 'Design a coil which has a given...