Energy = power X time. 800W X 120sec = 96000J
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The energy consumed by the toaster can be calculated using the formula: Energy = Power x Time. In this case, the power of the toaster is 800 watts, and the time it is used for is 2 minutes (or 120 seconds). Therefore, the energy consumed would be 800 watts x 120 seconds = 96000 joules.
In 2 seconds, a 100 Watt light bulb consumes 200 Joules of electrical energy from the electrical supply (100 Watts * 2 seconds = 200 Joules).
There are 1,000,000 joules in a megajoule.
1 calorie is equivalent to 4.184 joules. Therefore, 19.8 calories would be equal to 82.8432 joules.
There are approximately 155 calories in 650 joules. One calorie is equivalent to about 4.184 joules.
There are approximately 231 joules in 55.2 calories.