Recent content by PinguNinjitsu

Homework Statement You have a solution that is buffered at pH =2.0 using H3PO4 and H2PO−4 (pKa1 = 2.12; pKa2 = 7.21; pKa3 = 12.68). You decide to titrate this buffer with a strong base. 15.0 mL are needed to reach the first equivalence point. What is the total volume of base that will have...

Homework Statement 1.)A particle is released from point A and moves in the potential U(x). Suppose the mechanical energy of the system is conserved. At which position(s) will the kinetic energy of the particle have its maximum value? 2.)A(n) 126 g ball is dropped from a height of 58.1 cm...

Thanks a bunch for your help I actually got the solution today so I am just going to look over it and then it should all clear up. But thank you, you have helped me and next time I come across a problem like this I will remember everything we talked about =D!

So then T2=117.6+58.8=176.4? Is the tension I missed the one that is attached to the bottom? and would that be the same as the 6kg mg? If the 176.4 is correct for T2 and then I have T=T2-mg=166.6 do I have the right equation for the last part?

Okay so I think I am understanding it a little better, after working my way from the bottom 6kg, to the 6kg above that and finally over to the 1kg I got 107.8N as the F. I am not sure if I did that right though. For the first 6kg there were two forces on the FBD. T1 with an upward tension and...

You say there are three forces acting on the 1 kg mass, does that mean that I have to think of the mass and pulley two as one? so there are two tensions acting on the mass upwards and then T acting downwards? And then does that mean that I need to look at all the mass in the same way? Because I...

Homework Statement The system is in equilibrium and the pulleys are frictionless and mass less. Find the force T. The acceleration of gravity is 9.8 m/s2 . Answer in units of N. Homework Equations F=ma The Attempt at a Solution Okay so I looked at this problem and I thought that...

Thank you! Thats what I was thinking I was supposed to do, just wanted to make sure!

Homework Statement Two 103 kg boxes are dragged along a fric- tionless surface with a constant acceleration of 1.19 m/s2, as shown in the figure. Each rope has a mass of 1.03 kg. Homework Equations F=maThe Attempt at a Solution I wasn't sure where to go with this problem. I am mostly just...