Recent content by fickle

Homework Statement There's a pulley at the apex of an isosceles triangle, with a particle hanging from the string at each side (plane). Would the tension in this string be the same in this situation? Homework Equations The Attempt at a Solution

Homework Statement How can the open loop voltage gain of an operational amplifier with AC input voltage be determined experimentally? Supply voltage for op amp is +9V. Homework Equations The Attempt at a Solution I'm really stuck here. I would appreciate some outline of...

[SOLVED] Combined resistance of a cell and an ammeter Homework Statement I had to do a lab where a 105cm 28 swg wire was used to find the combined resistance of a cell and an ammeter. The only apparatus was a switch, 1.5v cell, 0-1A ammeter, 105cm & 20cm wires and connecting wires. Switch...

Ok. Thanks for your help though.

Can anyone help here?

Ok, so if that is the correct way, how would this be done then? Is it anything close to what I suggested in my original post?

All the experiment tells me to do is to observe and record the p.d. reading and the distance the contact point is touching, and to use the whole range of the potentiometer wire to record a series of readings for the p.d. and the length of the wire. I did do the experiment two or three times to...

Is that the mean?

Sorry for being unclear, but this is an experiment with a potentiometer actually. The measurements were what I observed during the experiment; none were given. The question following the instructions asks "Which can you measure more accurately, L or V; ie, which has the smaller percentage...

The measurements for the lengths are: 0.05m, 0.15m, 0.30m, 0.45m, 0.60m, 0.75m and 0.90m The measurements for the p.d.'s are: 0.05V, 0.10V, 0.20V, 0.30V, 0.40V, 0.50V and 0.60V I guess these are the measured values for the equation, but what would be the actual values then?

Homework Statement What are the percentage errors for lengths measured with meter rulers and potential differences measured with voltmeters? I have a question asking me which of the two measurements can be measured more accurately, based on which one's percentage error is lower. Homework...

I understand terminal velocity to be the velocity reached by a falling body when it experiences zero acceleration... All I have is the displacement and time to work with and I know that the gradient of the graph will give me the velocity. I'm just confused if the value I'll get for the...

Hi Can someone please explain how I can calculate the terminal velocity from a displacement-time graph? I'm only finding solutions to velocity-time graphs, but that's not what I need. Thanks in advance.

Do I take a similar approach as I did with (b)? And do I treat the tension in the strings as equal forces?

Wow I got it after all... thanks! I'll try (c) now... can I still post in this thread for help on that one?