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Sagot :
To determine the amount of heat absorbed by an aluminum cube after it is warmed, we need to consider several physical factors. Specifically, these factors are used in the formula to calculate the heat absorbed, which is expressed as:
[tex]\[ Q = mc\Delta T \][/tex]
where:
- [tex]\( Q \)[/tex] is the heat absorbed,
- [tex]\( m \)[/tex] is the mass of the cube,
- [tex]\( c \)[/tex] is the specific heat of aluminum,
- [tex]\( \Delta T \)[/tex] is the change in temperature, which is the difference between the final and initial temperatures of the cube ([tex]\(\Delta T = \text{final temperature} - \text{initial temperature}\)[/tex]).
Therefore, the factors needed are:
1. Final temperature of the cube: This is required to determine the change in temperature ([tex]\(\Delta T\)[/tex]) from the initial state to the final state.
2. Initial temperature of the cube: This is also needed to calculate the temperature change ([tex]\(\Delta T\)[/tex]).
3. Mass of the cube: This factor is required because the amount of heat absorbed depends on the mass of the aluminum cube.
4. Specific heat of aluminum: This is a property of aluminum that indicates how much heat energy is needed to change the temperature of one kilogram of aluminum by one degree Celsius.
So, the factors needed to determine the amount of heat absorbed are:
1. Final temperature of the cube
2. Initial temperature of the cube
3. Mass of the cube
4. Specific heat of aluminum
Other given options, such as the melting point of aluminum or the volume of the cube, are not necessary for calculating the heat absorbed in this context.
[tex]\[ Q = mc\Delta T \][/tex]
where:
- [tex]\( Q \)[/tex] is the heat absorbed,
- [tex]\( m \)[/tex] is the mass of the cube,
- [tex]\( c \)[/tex] is the specific heat of aluminum,
- [tex]\( \Delta T \)[/tex] is the change in temperature, which is the difference between the final and initial temperatures of the cube ([tex]\(\Delta T = \text{final temperature} - \text{initial temperature}\)[/tex]).
Therefore, the factors needed are:
1. Final temperature of the cube: This is required to determine the change in temperature ([tex]\(\Delta T\)[/tex]) from the initial state to the final state.
2. Initial temperature of the cube: This is also needed to calculate the temperature change ([tex]\(\Delta T\)[/tex]).
3. Mass of the cube: This factor is required because the amount of heat absorbed depends on the mass of the aluminum cube.
4. Specific heat of aluminum: This is a property of aluminum that indicates how much heat energy is needed to change the temperature of one kilogram of aluminum by one degree Celsius.
So, the factors needed to determine the amount of heat absorbed are:
1. Final temperature of the cube
2. Initial temperature of the cube
3. Mass of the cube
4. Specific heat of aluminum
Other given options, such as the melting point of aluminum or the volume of the cube, are not necessary for calculating the heat absorbed in this context.
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