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
Question
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
Solution
The power of a device is calculated by the formula:
Power = Energy / Time
Where:
- Energy is given as 90,000 J (Joules)
- Time is given as 10 minutes, but we need to convert this to seconds because the standard unit of time in this context is seconds. There are 60 seconds in a minute, so 10 minutes is 600 seconds.
So, the power is calculated as follows:
Power = 90,000 J / 600 s = 150 W (Watts)
So, the power of the vacuum cleaner is 150 Watts.
Similar Questions
12. Calculate the power of an appliance that transfers 10,000 J of energy in 2 minutes (1dp)
10. Calculate the power of an appliance that transfers 1000 J of energy in 45 s (2dp)
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.
9. Calculate the energy transferred by a 1,000 W appliance in 180 s
7. Calculate the energy transferred by a 100 W appliance in 15 s
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.