Physics, 23.08.2019 03:20 groverparham3
Let’s see whether it is better to a) plant corn (or some other biomass crop) and turn it into liquid fuel, then use that to operate a moderately efficient internal combustion engine (ice) vehicle, or b) plant the same amount of biomass, burn it to create electricity, then use that electricity to operate a battery electric vehicle. (guess up front which turns out to be better.) here are some facts to use. you can get about 70 gj worth of ethanol per hectare of corn (about 9000 kgcorn/hectare). biomass has an energy content of about 18 mj/kg. biomass power plants are about 40% efficient. a decently efficient car gets 30 mpg of gasoline, which is equivalent to about 22mpg of ethanol (less energy density). a decent battery electric vehicle can drive 4.5 miles/kwh of input electricity. gasoline has an energy density of 34 mj/liter; ethanol has an energy density of 24 mj/liter. a good way to put everything on the same basis is to make the comparison of how many kilometers could you drive in each case using biomass from one hectare of land?
Answers: 1
Physics, 21.06.2019 12:40, lovebug7685
Which of the following energy forms are invovled in a nuclear power plant ? heat ,sound , electrical , nuclear ,mechanical
Answers: 1
Physics, 22.06.2019 14:10, astarkey14
Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.
Answers: 2
Physics, 22.06.2019 15:30, salehabajwa101
What are the similarities & differences between a thermistor and a light dependent resistor in physics?
Answers: 1
Let’s see whether it is better to a) plant corn (or some other biomass crop) and turn it into liquid...
Mathematics, 11.04.2020 04:04
Mathematics, 11.04.2020 04:04
Mathematics, 11.04.2020 04:04
Biology, 11.04.2020 04:04