3. [\#652] Where does that fuel go? 1 point Petrol (gasoline) has an energy density of \( D_{E}=35 \mathrm{MJ} \).litres \( { }^{-1} \). Suppose a car uses petrol at a rate \( R=4.1 \) litres \( / 100 \mathrm{~km} \) when travelling at \( v=110 \mathrm{kph} \) on a level road. What is the rate at which chemical energy is being consumed by the engine? \( P= \) \( \qquad \) kW . (Hint: you can either use the 'multiply by one' technique, or else just be careful in using the units.) Enter answer here
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- Energy density of petrol, \( D_E = 35 \, \text{MJ/L} \). - Fuel consumption rate, \( R = 4.1 \, \text{L/100 km} \). - Speed of the car, \( v = 110 \, \text{kph} \). Show more…
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