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Fittoniya [83]
3 years ago
15

He specific heat of Aluminum is 0.9 J/g K. The specific heat of Copper is 0.39 J/g K. If samples of equal mass of both Aluminum

and Copper are heated up to 100°C and then dropped in a cold water bath. Compare the heat lost by the two samples.
A) There is not enough information to conclude anything.
B) The copper loses a little more than twice the heat of the Aluminum.
C) The Aluminum loses a little more than twice the heat of the Copper.
D) The heat lost is the same because the temperature change is the same.
Physics
2 answers:
Alexus [3.1K]3 years ago
7 0

Answer:

C) The Aluminum loses a little more than twice the heat of the Copper.

Explanation:

Since specific heat is part of the equation. A smaller specific heat will create a smaller heat gain or loss. The Aluminum loses a little more than twice the heat of the Copper.

iris [78.8K]3 years ago
3 0

the real answer is c

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Answer:

The percentage of the weight supported by the front wheel is  A= 19.82 %

Explanation:

From the question we are told that

   The center of gravity of the plane to its nose  is  z = 2.58 m

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At equilibrium  the Torque about the nose of the airplane is mathematically represented as

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Substituting values

            G_B =\frac{mg (2.58 -0.8 )}{(3.02  - 0.80)}

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Substituting values      

       G_F = mg - 0.8018mg    

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Now the weight of the airplane is  =  mg

Thus percentage of this weight supported by the front wheel is  A = 0. 1982 *100 = 19.82 %

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