Recent content by jimmyting

Yes I do thank you for your help. Funny that you got the picture off hyperphysics, I was on there trying to read about this

P is the resistivity and L is the length of the wire, so you are really solving for R/L

good but notice what you are solving for. How do you bring alpha into this. Hopefully you already drew a diagram, so substitute alpha and h1 in for h2.

[SOLVED] Battery with internal resistor Homework Statement What is the current in a 8.25 ohm resistor connected to a battery that has a .21 ohm internal resistance when the potential drop across the terminals of the battery is 6V?Homework Equations R_{s}=R_{1}+R_{2}... V=IR The Attempt at a...

yes sup, what you said is right. That is essentially how scales work.

you forgot about the 12kg bucket which is also moving. so your equation should really be Ko+ Uo = Kf + Uf 0 + (12)(9.8)(2) = (1/2)(4)(v^2) +(1/2)(12)(v^2)+ (4)(9.8)(2)

I will help you to start, use energy conservation from the top of the snowball to the point (with angle alpha) where she loses contact. Try that and if you have any more questions, just ask

Just as comment on your derivative, I think it should actually be F(x)= -6C/x^7 because if you used the multiplication rule, the -6 is in the numerator

The equation you have is right, but you have to think about the system. K1 would be zero, because at the beginning, nothing is moving, and U1 will be the potential of the 12 kg bucket if you set the ground as reference point. Then as the 12 kg bucket falls and hits the ground, the 4kg bucket...

Haha, sadly Art isn't my forte, neither is music for that matter, but thank you guys for your help

Wow thank you for catching my error in the last part. It works out, thanks. But if the segments were close in length comparably to the distance apart, would you need to apply the second equation?

[SOLVED] Force dealing with vectors Homework Statement A uniform magnetic field of magnitude 1.47 T acts in the positive z direction. Find the magnitude of the force exerted by the field on a proton if the proton's velocity is <3Mm/s i + 3Mm/s j>. Answer in pNHomework Equations F=QV \times...

[SOLVED] Finding the force between 2 finite length wires Homework Statement The two wires of length 2m are 3mm apart and carry a current of 10 A dc. calculate the force between these wires.Homework Equations Well, I know that the force is found with F=IL\times B Since we aren't given B, the...