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21. Explain the difference between Distance and Displacement 22. State Newton'$ First Law:23. State Newton'$ 3r4 Law24. Note the following facts:The speci...

Question

21. Explain the difference between Distance and Displacement 22. State Newton'$ First Law:23. State Newton'$ 3r4 Law24. Note the following facts:The specific heat of water is higher than the specific heat of land; in other terms land absorbs and releases heat faster, and t0 higher extent, than water.On Earth's surface water covers larger area in the Southern Hemisphere than in the Northern Hemisphere.Based on these facts, explain why winters in the Northern Herisphere are colder

21. Explain the difference between Distance and Displacement 22. State Newton'$ First Law: 23. State Newton'$ 3r4 Law 24. Note the following facts: The specific heat of water is higher than the specific heat of land; in other terms land absorbs and releases heat faster, and t0 higher extent, than water. On Earth's surface water covers larger area in the Southern Hemisphere than in the Northern Hemisphere. Based on these facts, explain why winters in the Northern Herisphere are colder than winters In the Southern Hemisphere (For example_ winters In the US, occurring In December- February, are colder than winters in South Africa, occurring in June August;



Answers

Questions $16-18$
Match the description to the property of water.
(A) Water exhibits strong cohesion tension.
(B) Water has a high heat of vaporization.
(C) Water has a high specific heat.
(D) Ice is less dense than water.
(E) Water is a universal solvent.
Fish can live through the winter in a lake that has ice floating on the surface.

Position. Do turbines location off the object? Displacement in our minds Difference. Be doing position are even better. It says Distance between position. So this is our difference and displacement. So we have distance and distance is then between positions, which the difference and displacement. He's distance and the direction So position determines the location. So the location is here. Let's say initial location is here and then the final location is here. Final location is here, so displacement deter mines. DUP distance between them and the given direction. But the distance will just give the rental office and say that the final position is this much away. But it did not give in which direction.

We have five properties of water. Her a water exhibits stronger cohesion. Tension e I. Heat of vaporization see high specific heat. The ice is less than two water, and the water is the universal solvent. Which of these properties allows, uh, this behavior of water? But sweating is a cooling process because of his characteristic. So why is sweating so good? What we use it to lose excess heat from a body, and we can do this because of B high heat of vaporization. So when sweat evaporates from your body, it requires a lot of energy to do so. And that energy is you losing heat. So if it has a lower heat of vaporization, it would not be significant cooling process or an animal.

Now we have five properties of water. We have to match this Teoh a particular characteristic waters behavior. So a water exhibit. Strong cohesion, tension be what has a high heat of vaporization? See what has a high specific heat? De ice is less dense than water or e water is the universal solvent. And our statements is that water moves up tall trees because this is true. So what property of water do freeze use? They use a the cohesion tension. So this is envies. I'll, um, you'll learn about me. Plant section on bond The water moves passively up the tree because of the vacuum produced when water evaporates at the leaves so water lives leaves at the leaves by transpiration. And that leaves and vacuum that the war seven rises to fill by cohesion. Tension with no energy input on the part of the plants.

Let's explain the following scenarios for a cooking with water is faster in a pressure cooker than in an open pad for AIDS. Water boils when the vapour pressure equals the pressure above the water in an open pan. The atmospheric pressure is approximately one atmosphere in a pressure cooker. The pressure inside the pressure cooker is greater than one atmosphere. Uh, therefore, the water boils at a higher temperature, and the higher the cooking temperature, the faster the cooking time scenario. Beak says that salt is used on icy roads, so salt, sodium chloride but other salts as well. Uh, salt dissolves in water, forming a solution with a melting points lower in that of pure water. And this is due to the freezing point depression. If the ice is not too cold, the ice melts. This just don't work. Um, does not work. If I mean me, ambient temperature is lower. Then the depressed the freezing point of the Soltz solution scenario C. Us smelted. Sea ice from the Arctic Ocean produces fresh water, so when water freezes for me, a solution freezes has pure water, leaving behind a more concentrated salt solution scenario. D. Carbon dioxide solid dry ice does not have a normal boiling point under normal atmospheric conditions. Even though carbon dioxide is a liquid and fire extinguishers, it's used, the fees diagram. So in the Seo two phase diagram, the triple points is above one atmosphere. So go to in the gas fees. Is the stable please at one atmosphere? Pressure. Um, when that mystery pressure and room temperature so too in the liquid fees can't exist that normal atmospheric precious. Therefore, you too solid, sublime seems instead of boils in a fire extinguisher. The pressure is greater than one atmosphere, and because of this, seal to liquid can exist when seal two is released from the extinguisher C 02 gas forms. Um, according to the please diagram and scenario E adding a saw you to a solvent extends the liquid phase over a larger temperature range. So adding, hey, so utes to a solvent increases the boiling points and decreases the freezing points. Uh, solvents therefore work the solvents is a liquid over a wider temperature range. When hey, so you is dissolved


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