# Yahoo奇摩 網頁搜尋

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1. ### Dew point , Frost point

... as the air is cooled is called the dew point temperature when the change of state occurs at a temperature above freezing...

2. ### melting point &boiling point ?

如果個subtance既melting point 係-10℃ 咁姐係個substance會係-10℃個陣變solid 而boiling point ...個陣變gas 所以room temperature個陣應該會係liquid. Since the melting point of the substance is -10℃, it means the substance will become solid...

3. ### physics (urgent!!!) 15 points

...0.1 W/m^2 3. Presume that B is the highest point . Then the time taken from A to B or from B to...

4. ### fixed point ... thz

...we use the temperature of pure melting ice as the lower fixed point and the temperature of the steam over pure boiling water as upper fixed point ...

5. ### Phy MC 20 points

...from a freezer, mark down the liquid level and take this as the lower fixed point . 2. Put the thermometer in pure boiling water, mark down the liquid level...

6. ### critical and triple points

Critical point : In thermodynamics, critical point refers to the minimum value of pressure and...liquid and the gaseous phases become indistinguishable. For example: the critical point of water occurs at around 647 K and 22.064 MPa. Triple...

7. ### boiling point in vacuum

...calculator to find out the preesure required to reduce the water boiling point to a specified temperature. For more accurate data, you could refer to the...

8. ### Potential due to a point charge?

...1a) First of all, by Pyth. Theorem, point A is 5 m away from each of the point charge..., B is of a distance of √5 cm from the point charge, hence VB = Q/4πε0(0.01 × √5) = (5...

9. ### tension- point away an object?

... large enough to provide the necessary centripetal force at the highest point of its path, we would have, W = Fc (=mv^/R) If the...

10. ### Physics questions!!! 15 points

... that the ice has enough time to warm up to its melting point (0'C). At the melting point , the temperature of the ice no...

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