Calculate the power of a hair dryer that transfers 24kJ of energy while being used for 60s.
Question
Calculate the power of a hair dryer that transfers 24kJ of energy while being used for 60s.
Solution
Sure, here are the steps to calculate the power of the hair dryer:
Step 1: Understand the formula for power. Power (P) is the rate at which energy is transferred or converted. The formula for power is P = E/t, where E is energy and t is time.
Step 2: Convert the energy from kilojoules to joules. We know that 1 kilojoule (kJ) is equal to 1000 joules (J). So, 24 kJ is equal to 24,000 J.
Step 3: Substitute the values into the formula. We know that E = 24,000 J and t = 60 s. So, P = 24,000 J / 60 s.
Step 4: Calculate the power. P = 400 W.
So, the power of the hair dryer is 400 Watts.
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