Question

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? j

Explanation:

Step1: Find total energy used in other forms

The energy used in kinetic and sound is $45 + 20 = 65$ J.

Step2: Calculate thermal energy

Subtract the total used energy from the initial chemical energy: $100 - 65 = 35$ J.

Answer:

35