Recent content by yamugushi

Homework Statement If R1 = 4 x R2 then what are the values of the potential difference in terms of the EMF, E? I have R1 = 3/4, and R2 = 1/4 but that seems a bit simplistic, then I tried plugging it into equations and got completely different answers. Homework Equations R=V/I (?)...

Is there a way to do it via component and directional form?

Homework Statement I'm currently doing an airplane project in pre-calc, it is physics related so I put it here. The problem is I have a plane, it's going N74W, wind is going N20E, the resultant vector is 324mph, and N67W, how do I compensate? Homework Equations I remember going over it...

Homework Statement I'm currently doing an airplane project in pre-calc, it is physics related, but since it's in pre-calc I put it here. The problem is I have a plane, it's going N74W, wind is going N20E, the resultant vector is 324mph, and N67W, how do I compensate? Homework Equations...

I know these aren't exactly physics problems but I'm being asked them in physics so... Homework Statement 1) As lead melts there is a change in it's... Temperature Heat of fusion (what I now think it is) Avg molecular KE (what I thought it was) Avg molecular PE 2)In a room there is...

ok:

Homework Statement What is the objects momentum at 3 seconds, on the graph at 3 seconds it is exerting 35n Homework Equations f=change in momentum/time The Attempt at a Solution I got 105kgms but it was marked wrong... I can make the graph in paint if it will help anybody.

Unless something is being partially lifted (which doesn't apply to your problem) then normal force = force of gravity (mg)

So what you're asking is has anyone done this lab, so you can copy their data? why didn't you do this is class? I can't really help you as I never did an actual lab, I instead did it algebraically, acceleration due to gravity (neglecting friction, and on Earth at approx seas level, I forgot...

yes, the answers were: 0mv 1mv 1.5mv .5mv 2mv

2mv?

So it's be -mv... but there aren't any negative answers: I have 0 1.5 .5 2 and what I answered MV (all above are times MV as well)

1. Homework Statement A ball is rolled into a wall and bounces back at the same speed, the change in momentum is? 2. Homework Equations Ein = Eout 3. The Attempt at a Solution I thought it was m(v) but I got it wrong (doing test corrections ATM) Note I'm having trouble editing...

Ok, well first approximate, do you know what a kg is equal to? about 4 apples, now consider a small paper clip, it is very small compared to those apples, a tenth? a thousandth? a millionth? well you are in luck because it is multiple choice, so it is most likely 1EE-3 If you don't know...

This is a supply demand problem: Supply force: .4 friction demand = v^2 Fnet = MV/r solving algebraically: V=\sqrt{}Force of friction (radius) note you may want to get the equation yourself, because I'm doing this by memory and it may be wrong.