Recent content by mer584

1. Homework Statement Show that the magnetic dipole moment M of an electron orbiting a proton nucleus of a hydrogen atom is related to the orbital angular momentum M=(e/2m)L 2. Homework Equations M=NIA, Torque =MB, F=qvB=v^2/r, L=Iw=mrv=rp (where p=mv) N=1 in this case I assume? 3...

I'm not exactly sure what you did there. But the trick to this is seeing that as L becomes 3L you are going to see the same amount of decrease in your area as it stretches and flattens out. Your new area will therefore be 1/3A. this means you have 3L/(1/3A) = 9(L/a). SO what we see is...

Homework Statement Show that the magnetic dipole moment M of an electron orbiting a proton nucleus of a hydrogen atom is related to the orbital angular momentum M=(e/2m)L Homework Equations M=NIA, Torque =MB, F=qvB=v^2/r, L=Iw=mrv=rp (where p=mv) N=1 in this case I assume? The...

O.K. I see it now. Thank you.

I put this in the intro forum about 3-4 hours ago and no one answered, can anyone here help? 1. Homework Statement An experiment on the Earth's magnetic field is being carried out 1.00m from an electric cable. What is the maximum allowable current in the cable if the experiment is to be...

use superposition if you draw lines from each Q to the 2uC you will see you have a triangle in order to find the force effecting 2 you need to use that diagonal length as R for F=KQQ/R^2 you will be able to find this pretty easily because you'll see the right triangle forming at the...

ignore the range formula, the other method is definitely what your prof will want but for reference the range formula will give you the total initial velocity whereas the large formula we have been discussing will give you the y component and then allow you to solve for the total initial...

well...it is Vf^2= Vi^2 + 2a(Yf-Yi) or delta y. It will give you the y component of the velocity when you solve for Vi multiplying it by sin(a) where a=angle will provide you with the the y component IF you were starting with the total velocity. BUT since you are starting just with the y...

I'm not sure if I'm answering your question but W= -qEd which is equivalent to the change in potential energy in a UNIFORM field only. The potential difference can be solved for using W= -Vq this is the amount of work it takes to move the test charge from a point a to point b say in...

Nevermind, I eventually got it to come out to the right answer

you can try using the range equation (meaning total distance in the x direction) since you have the distance X and the angle the formula is R=(V^2/g)sin2a where a=the angle Or since you may not have learned this you can try solving for the velocity using V^2=V^2 + 2a(y-y). The trick...

Homework Statement Three equal resisters are connected to a battery. If the emf of the battery is 15V, what is its terminal voltage when the switch is closed if the internal resistance is 0.5 ohms and R= 5.5ohms? What is the terminal voltage when the switch is open. Homework Equations...

using x=(VicoxA)t --> 42/(23*cos25) i got 4.32 and than using y=(23*sin25)4.32+1/2(-9.81)(4.32)^2 i got -49.5 >>y=(VisinA)t+1/2a(t)^2) but in the back of the book it says its wrong so can someone please tell me what i did wrong?[/QUOTE The formula for projectile motion is the Y direction is...

Thank you. I did post this in the introductory forum about 3 hours ago but no one was able to respond so I thought maybe I needed to put it here, figuring someone would be able to answer it quickly--which fortunately was the case. Sorry to take your time.

Homework Statement An Ordinary flashlight uses two D-cell 1.5V batteries connected in series. The bulb draws 450mA when turned on. A)Calculate the resistance of the bulb and the power dissipated. B) By what factor would the power increase if 4 D-cell batteries in series were used with the same...