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LekaFEV [45]
2 years ago
8

Effects of heat on matter​

Physics
1 answer:
kumpel [21]2 years ago
3 0

Answer:

it can melt orcan put them past their boiling point

Explanation:

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A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g of water in an 80-g aluminum container, both initially at 30°C.
MakcuM [25]

Answer:

b. 9.5°C

Explanation:

m_i = Mass of ice = 50 g

T_i = Initial temperature of water and Aluminum = 30°C

L_f = Latent heat of fusion = 3.33\times 10^5\ J/kg^{\circ}C

m_w = Mass of water = 200 g

c_w = Specific heat of water = 4186 J/kg⋅°C

m_{Al} = Mass of Aluminum = 80 g

c_{Al} = Specific heat of Aluminum = 900 J/kg⋅°C

The equation of the system's heat exchange is given by

m_i(L_f+c_wT)+m_wc_w(T-T_i)+m_{Al}c_{Al}=0\\\Rightarrow 0.05\times (3.33\times 10^5+4186\times T)+0.2\times 4186(T-30)+0.08\times 900(T-30)=0\\\Rightarrow 1118.5T-10626=0\\\Rightarrow T=\dfrac{10626}{1118.5}\\\Rightarrow T=9.50022\ ^{\circ}C

The final equilibrium temperature is 9.50022°C

4 0
3 years ago
Dams hold collected water back from flowing at their normal rate. What type of energy is in the collected water above the dam? c
Andreyy89
It would be mechanical potential energy.
8 0
3 years ago
Read 2 more answers
In longitude waves, the medium moves parallel to the direction of energy transport
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Yep that's correct
And transverse waves move perpendicular to the direction of energy transport
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3 years ago
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