A computer has a 800 W power supply.Calculate how much energy is transferred while it was used for 40 minutes.3 J20 J1.92 MJ3200 JI DON'T KNOWSUBMIT ANSWER
Question
A computer has a 800 W power supply. Calculate how much energy is transferred while it was used for 40 minutes.
- 3 J
- 20 J
- 1.92 MJ
- 3200 J
- I DON'T KNOW
SUBMIT ANSWER
Solution
To calculate the energy transferred, we need to use the formula for energy which is:
Energy (Joules) = Power (Watts) x Time (Seconds)
First, we need to convert the time from minutes to seconds because the standard unit of time in this context is seconds.
1 minute = 60 seconds So, 40 minutes = 40 x 60 = 2400 seconds
Then we substitute the given values into the formula:
Energy = 800 W x 2400 s = 1,920,000 Joules
Therefore, the energy transferred is 1.92 MJ (since 1 MJ = 1,000,000 Joules).
Similar Questions
Power = 2000 WWork done = 64 000 JCalculate the time.Time = _____ sI DON'T KNOWSUBMIT ANSWER
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
10. Calculate the power of an appliance that transfers 1000 J of energy in 45 s (2dp)
A lamp transfers 54 KJ of energy.Calculate the power of this lamp if it is used for 1 hour.Power = _____ W0.0151590054 000
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.