Hey, so in this problem we start out with a 20 micro fair and capacitor, and it has a potential difference of 800 folds. So if we wanted to, we could find the charge on it. I'm guessing we probably will have to. So that's 20.0, times 10 to the minus six fads. And the voltage is 800 volts. And then this capacitor is then connected to another capacitor. That's uncharged. And it has a 10 micro frag capacity, so see two is equal to 10 uh, times 10 to the minus six fans. So here's redraw. All See one here. See, too. And then basically, the questions is I mean, how much charge is gonna get on this other capacitor? So, um, and then the final energy of the system and how it changes on. So first we want to get the original charge in this system. So for part, a sees cure V. So, um, he was cute by right. Be so Q is equal. Two. Ah, see one v. So Oh, I could do that. One of my head. So that's 16 times. Make sure that was 20 and not too. Yeah, so 22 times eight is 16. That's 10 of the minus five times 10 to the two. So that's times 10 to the minus three. Cool ums. It's a lot of charge and part B, huh? It's here, So quite be asks us to find the potential difference across each capacitor. So what's gonna happen when we connect the used to charge capacitors? Um, are gonna now have the same potential difference. So we can say the wine equals B two. And so, um, the voltage across either is gonna be the charge, uh, divided by the capacitance. Never had a race that who oversee, and then that's gonna be true for both of them. And then we know that they're gonna um actually, no, we don't know that they're gonna be sweating the charge, but this is gonna tell us the ratio of the charges. So we know that, um, q one it's gonna be Q. So Adam Brickley solving this equation for a Q one gets equals that it's equal to Q two times, see one divided by sea to and let's see. So how did their capacitance is? Compare to see one has double the capacitance off see too. So therefore, um que wise Could be two Q two. No, excuse me to you too. And so basically, it's gonna be if you could divide this total charge of the thirds and Cuban will get 1/3 and then cue to look at 2/3 of it. So then I'm gonna continue this on the next page. So the cute total was equal. Thio, I think it was 16. Um, c give me one second. So 16 times 10 to the minus three cool ums. Therefore, Q one is gonna get tau 16 divided by three. What? So it's gonna get 10 point uh, seven. We'll worry about the Sync fix later, and then Q two. It's gonna get half of that. So, um yeah, it's just gonna be 5.33 Millie Coolum And next we want to get the final energy of the system. So this is still be so if we want to get the final energy. Um, we just want to evaluate you, which is equal to 1/2 C V squared. Um, let's use one with charge. So see ISS, not voltage. So v askew overseas. So that's 1/2 Hugh squared over a C square time. See, gives 1/2 Q squared, divided by sea. So you want. Okay, I'll have to use a calculator for this one. But I mean, yeah, I'm just gonna be putting in Q one squared, divided by sea wine. And then 1/2 Hugh two squared oversee, too. And then I'm gonna go ahead and pause the video. Thio do this calculation. Okay, so I put everything into a calculator, and for you one, I ended up getting 2.85 jewels. And for you, too. I ended up getting 1.4 to Jules, and then d asks youto compare this energy to what it was originally so originally. Um, let's just use the 1/2 C B squared formula, because those are I guess you could use either one. I like to use the things that are directly given if, um, possible. So yeah, I'm just plugging in this C one and then this b s this seat 1000. Let me just double check. That's not 800 0 800 makes war actually used 800 not 8000. I did use 800. Okay. Excellent. And so that's 6.4. All right, Jules. So therefore, the energy lost between the initial and final configuration is, um it's gonna be this 6.4 minus you one minus you, too. And then when I put that into a calculator, I got 2.13 drawls.