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Answer :
Answer:
940 J
Explanation:
Thermal energy = kinetic energy
KE = ½ mv²
KE = ½ (3.0 kg) (25 m/s)²
KE = 937.5 J
Rounding to 2 significant figures, the increase in thermal energy is 940 J.
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Final answer:
The increase in thermal energy is 937.5 J.
Explanation:
The increase in thermal energy can be calculated by subtracting the initial kinetic energy from the final thermal energy. The initial kinetic energy can be determined using the equation KE = 0.5 * mass * velocity^2. In this case, the initial kinetic energy is 0.5 * 3.0 kg * (25 m/s)^2 = 937.5 J. Since all of the initial kinetic energy is converted into thermal energy, the increase in thermal energy is equal to the initial kinetic energy, which is 937.5 J.
