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Units & Conversionsmedium
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The kinetic energy of a moving object is given by the formula Ek=12mv2E_k = \frac{1}{2}mv^2Ek​=21​mv2. If mass mmm is measured in grams and velocity vvv is measured in centimeters per second, the energy is measured in ergs. How many ergs are equal to 1 Joule1\text{ Joule}1 Joule? (Note that 1 Joule=1 kilogram⋅meter2second21\text{ Joule} = 1\text{ kilogram} \cdot \frac{\text{meter}^2}{\text{second}^2}1 Joule=1 kilogram⋅second2meter2​, 1 kilogram=1000 grams1\text{ kilogram} = 1000\text{ grams}1 kilogram=1000 grams, and 1 meter=100 centimeters1\text{ meter} = 100\text{ centimeters}1 meter=100 centimeters)