Answer:
Explanation:
Let consider a car travelling at a speed . The ratio of final kinetic energy to initial kinetic energy:
The final speed is:
Measurements of two electric currents are shown in the chart. A 3-column table with 2 rows titled Electric Currents. The first c
2 answers:
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Answer:
the heat absorbed by the block of copper is 74368.476J
Explanation:
Hello!
To solve this problem use the first law of thermodynamics that states that the heat applied to a system is the difference between the initial and final energy considering that the mass and the specific heat do not change so we can infer the following equation
Q=mCp(T2-T1)
Where
Q=heat
m=mass=2.3kg
Cp=0.092 kcal/(kg C)=384.93J/kgK
T2=Final temperatura= 90C
T1= initial temperature=6 C
solving
the heat absorbed by the block of copper is 74368.476J