Okay, So the question was asking us Holland, where we take the house temperature to reach the reason port so we could determine the timing. Okay, so we know that he lost Where can we go? That negative k a has DT over dx isa temperature acts is the, uh the thickness. Okay. And in case the thermal conductive, he is the surface area. We know that. Did he come express as changing temperature, which is t minus T zero t is the temperature of the rich tea's roasty initial temperature, which is the outside temperature, which is on Sorry, I should pull out 1915. Okay, so that teaser was negative. 15. The results is okay, Arthur Thermo resistance. So now Okay, T t o d Actually, see, it was a negative. T my teacher of our people t minus t zero Varzi bouquet times tt over the axe. Okay. And we also know that the heat loss rate can express the heat over per unit. Time was a dick. Your duty which can be also it was never t Manistee zero of our way. Do some arrangement here will get take you over the future. Some people take you over. DT Times Capital DT over DT So it's see chastity over TT See, here's a he capacity. Okay, so who have seen times tt over the lower case T which is equal to negative team honesty. Zero r sees the vehicle as it was given a six point by May God you her Calvin, which is six point by tens Tension Power six to help Thermo resistant ar is 6.67 Milly Calvin for Watts, which is 6.67 times 10 to her apartment 83 Calvin for what's if we do some arrangement would have DT on left side And, uh, the lower case. He wishes the tie on rice. So it's DT over t minus t zero is ableto connective wall over cr DT. So now let's put it into your own. We have t to ah is a She's what you want, OK? And this will have zero to t. Okay. Hey, things grow here. Who have national log? T minus t zero from t two t one, which is you go to Yeah, minus t oversee our arrange is wrong. Zero to t. Okay, so now every you plugging Uh So the tea here? No, it's never showed us. So it's natural. Rt minus 15. Um, ser minus negative. 15 degree Celsius. Remember t zero sq as 15 degrees houses. And he should be 20 degrees Celsius and he wants with zero degrees Celsius. Why is that? Because, remember, the question was asking us. Hello? Will you take the house members temperature to reach the freezing points? So it's from 23 results. It's zero degrees Celsius. Okay. And on the right side, just simply Ah, negative t oversee our because if you're probably zero, here is zero. So just 90 Okay. And the question wants to determine times wanting to move the T on laps lower. Tasty. Okay, so let's do it. So we have negative oversee. Our is equal to natural log T plus 15 degrees Celsius. This minus negative. 15 years plus 15 degrees houses. Okay. In front. 20 degrees houses to zero degrees houses. Okay. They will have minus t. Um, oversee. Our is equal to natural log zero plus obtain degree sashes over 20 degree Celsius plus 13 degrees houses. Okay. Why is that? I want to rest. So if it is based on the sea question. So I say natural log X, my nose natural Agwai. And this will be able to natural log axed. Remember Why? Okay, this is from nausea, so I love you. Carried over. Okay, so I use is formula here to get natural. Log zero plus 15/20 plus 50. Okay, It's a level that's keep doing our incursions. Here they will have. Tea is equal to inactive. Natural log. They're thing degree Celsius over 35 degrees houses. Okay. Over. Almost are no over time. C r. Okay, that's plugging and see value and are very well have teas. Eagle two, Nigel log 15 over 35 since degrees, houses and degree Celsius. Cancel out. Okay, times see was given. As you see, 6.5 times 10 to us. Power six juco Kelvin. Okay, six point fight ends 26 Tuber Calvin times 6.67 times. And to elect three, uh, Calvin her watts. Okay. And this will give us a times about 300 I'm sorry. 36,000 and 734 0.6 seconds. Every converting our which is, uh, 36,734 0.6 times One over. Over 30. 600. Okay, because what are their 36 100 seconds? Okay, so therefore will have, um is about 10.2 hours. Okay, so you take about 10.2 hours to take the house temperature to reach the freezing point. Okay? And this is my answer for the question. Thank you.