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Time for a lake to freeze over. When the air temperature is below $0^{\circ} \mathrm{C},$ the water at the surface of a lake freezes to form a sheet of ice. If the upper surface of an ice sheet 25.0 $\mathrm{cm}$ thick is at $-10.0^{\circ} \mathrm{C}$ and the bottom surface is at $0.00^{\circ} \mathrm{C},$ calculate the time it will take to add 2.0 $\mathrm{mm}$ to the thickness of this sheet.

2.899$h$

Physics 101 Mechanics

Chapter 14

Temperature and Heat

Thermal Properties of Matter

The First Law of Thermodynamics

University of Michigan - Ann Arbor

Simon Fraser University

University of Winnipeg

McMaster University

Lectures

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Let's take a question Question was asking us to cut the time would take to add to me Mira to thickness of Is she okay? So we know he kerns which is a power. He's a cute Um I doubt that he which we go to m l was just mass times the later he's your vitality, we're gonna mass We can so again expressed mass as the UAE intense the density which is it was also equal to the service area times the thickness has tenacity and has the later here you have a reality. It also this he should also has at the same rate through the eyes there that is already for which is a huge bouquet A time Stich Must he see you ever l okay. And with it set out is two questions. I'll go to each other. We'll get a dear ol Do you have I don t equal to Okay, th minus TC. Oh, okay. A cancel out is the same eight. So we got the hero out over there are the tee you go to que times th minus TC You are by l. A little hell. Here is the think this off already for ice layer. Okay, so no, we can't figure out Donna t which is just equal to the Euro capital l times the legal l Do you want it by que times? Th minus TC. If we plug in the values do give us dalati. This is equal to the thickness of the eyes that should be formed was the two millimeter which is two months old into the next three years Times the density off the ice wishes 1000 kilogram per meter cubed times. The later he was just 334 as potential about three chew per kilogram times the thickness front It already for ice layer, which is 25 centimeter, which is 25 times tend to in 82 meter divided by que which is 1.60 watts. From your times, Calvin as the thermal conducted with you for ice times tissue as T C, which is zero degrees Celsius minus negative. 10 degrees Celsius. Okay. I want you get 10,437 ordered by seconds. All the time too for too many millimeters. The thickness of the ice. Okay, if we converted hours, which is 10,200 or 37 25. Do you have I 30? 600? Our because one hour has 3600 seconds. Okay. And I will give us two point a nine ni hours to force ash layer, which is about three hours. Okay. Oh, and thank you.

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