A blow dryer transfers 3.4 kilojoules in 17 seconds.Calculate the power of this blow dryer.Give your answer in watts. Make sure to include the units in your answer.20020W0.257.8W200WI DON'T KNOWSUBMIT ANSWER
Question
A blow dryer transfers 3.4 kilojoules in 17 seconds.Calculate the power of this blow dryer.Give your answer in watts. Make sure to include the units in your answer.20020W0.257.8W200WI DON'T KNOWSUBMIT ANSWER
Solution
To calculate the power of the blow dryer, you need to use the formula for power which is:
Power = Energy / Time
The energy is given as 3.4 kilojoules, but we need to convert this to joules because the standard unit for energy in this context is joules. There are 1000 joules in a kilojoule, so:
Energy = 3.4 kilojoules * 1000 = 3400 joules
The time is given as 17 seconds.
So, the power is:
Power = 3400 joules / 17 seconds = 200 watts
So, the power of the blow dryer is 200W.
Similar Questions
Calculate the power of a hair dryer that transfers 24kJ of energy while being used for 60s.
A washing machine takes 2 hours to wash one load of clothes.During this time, it uses 8.64 MJ of energy.Calculate the power of this washing machine.Give your answer in watts.1200 W0.0012 W4 320 000 W4.32 W
Energy transferred = 3200 joulesTime = 160 secondsCalculate the power, you must include units in your answer.
A vacuum cleaner transfers 90 000 J of energy.Calculate the power of the vacuum cleaner when used for 10 minutes.150900 000 W9 0009000 W150 W
An air conditioner is turned on and used for 10 800 seconds.During that time, it transfers 40.5 MJ of energy.Calculate the power of this air conditioner.Give your answer in watts. Make sure to include the units in your answer.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.