Question

650.J is the same amount of energy as?
2720cal
1550cal
650.cal
2.72cal

Answer 1

650 J are 155 calories

Step-by-step explanation:

In the world, there are many differents ways to express energy. For example, for SI base units, Joule (J) is the correct way to express energy. But it is common the use of other units in differents fields. In this case, we need to convert Joules to calories. The conversion is:

4,1845 J = 1 cal

Thus:

650 J × (1 cal / 4,1845 J) = 155 cal

I hope it helps!

Answer 2

Ans: 650 J = 155 calories

Given:

Energy in joules = 650 J

To determine:

The energy in calories

Step-by-step explanation:

1 joule = 0.2388 calories

Therefore, 650 joules = 0.2388 calories * 650 J/1 J = 155 calories