cjking032002 cjking032002

27-02-2018
Physics

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An electrical drill has 100 J of chemical energy. Of the 100 J, 45 J are transformed into kinetic energy and 20 J are transformed into sound. The remaining energy is given off as thermal energy.

What is the thermal energy of the drill?

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breannamooreheoxkeyx breannamooreheoxkeyx

05-03-2018

The answer to this question is the thermal energy of the drill is 35 J

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10-06-2022

According to law of conservation of energy, the thermal energy of the drill is 35J.

What is law of conservation of energy?

The law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.

Total energy = Kinetic energy + Sound energy+ Thermal energy

100 = 45+20+ Thermal energy

Thermal energy = 35J

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