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4 years ago

The freezing point of water is the same as its a. melting point. b. boiling point. c. sublimation point. d. evaporation point.

Physics

2 answers:

MAXImum [283]4 years ago

8 0

Answer: melting point.

Explanation:

Freezing point is the temperature at which liquid phase changes to solid phase. Freezing point of water is $0^0C$ .

$H_2O(l)\rightarrow H_2O(s)$

Melting point is the temperature at which solid phase changes to liquid phase. Melting point of water is $0^0C$ .

$H_2O(s)\rightarrow H_2O(l)$

Melting and freezing are reversible processes which takes place at $0^0C$ for water.

Boiling point is the temperature at which vapor pressure of the liquid becomes equal to atmospheric pressure.

Sublimation point is the temperature at which gaseous phase changes to solid phase.

Thus the freezing point of water is the same as its melting point.

algol [13]4 years ago

6 0

A. Melting point .. I learned this today in class.
Ex. Ice melts at 0 degrees C and freezes at 0 degrees C.

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3 years ago

figure 2 shows a charged ball of mass m = 1.0 g and charage q = -24*10^-8 c suspended by massless string in the presence of a un

Vlad [161]

Answer:

E = 307667 N/C

Explanation:

Since the object's mass is 1 g, then its weight in newtons is 0.001 * 9.8 = 0.0098 N.

This weight should have the same magnitude of the vertical component of the tension T of the string (T * cos(37)) so we can find the magnitude of the tension T via:

0.0098 N = T * cos(37)

then T = 0.0098/cos(37) N = 0.01227 N

Knowing the tension's magnitude, we can find its horizontal component:

T * sin(37) = 0.007384 N

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0.007384 N = E * 2.4 * 10^(-8) C

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E = 307667 N/C

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Answer:

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Explanation:

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