Suppose one gallon of gasoline produces 1.1 X 10^8 J of energy, and this energy is sufficient to operate a car for 30 miles. An aspirin tablet has a mass of 290 mg. If the aspirin could be converted completely into thermal energy, how many miles would the car go on a single tablet?
Consider, E = mc²
E = 290e-6x9e16
= 2.61e13 J
Now,
(30miles/1.1e8 J) x 2.61e13 J = 7.12e6 miles
Suppose one gallon of gasoline produces 1.1 X 10^8 J of energy, and this energy is...
IP Energy from Gasoline Burning a gallon of gasoline releases 1.1 9 × 108 J of internal energy. If a certain car requires 6.1x105 J of work to drive one mile, how much heat is given off to the atmosphere each mile, assuming the car gets 20.8 miles to the gallon? Qrel MJ/mi SubmitP Previous Answers Request Answer
IP Energy from Gasoline Burning a gallon of gasoline releases 1.19 times 10^8 J of internal energy. Part A If a certain car requires 6.7 times 10^5 J of work to drive one mile, how much heat is given off to the atmosphere each mile, assuming the car gets 21.0 miles to the gallon? Q_rel = 104
Suppose a car travels 102 km at a speed of 30.5 m/s, and uses 2.1 gal of gasoline in the process. Only 30% of the gasoline goes into useful work to keep the car moving at a constant speed. In this problem you may assume that 1 gallon of gasoline produces 1.2 × 108 J of energy. (a) What is the force exerted, in newtons, to keep the car moving at constant speed? (b) If the required force is directly...
7. Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of the car (in hundreds of pounds), and let y be the miles per gallon (mpg) At the 5% level of significance, test the claim is that heavier cars use more gasoline. Remember that a claim of correlation would be that X 29 46 29 47 23 40 34 52 Y 30 21 22 14 29 27 22 34 a....
The US uses about 8 x 1019 J of energy per year. How much mass would that require if we could totally convert mass to energy? If the mass came from, say, turning used cars entirely into energy, estimate how many would be required?
xm m A consumer chooses miles traveled m to maximize the difference between benefits and costs: Po +t max: 1000 In(m) - MPG utility of driving cost per mile where MPG is the miles-per-gallon (the energy efficiency) of a car, P, is the market price per gallon, and t is any tax per gallon. 5. Solve for m*, the consumer's utility maximizing amount of driving by taking a derivative and rearranging the first order condition. Your result will be a...
Suppose that you have an old car that is a real gas guzzler. It is 10 years old and could be sold to a local dealer for $500 cash. The annual maintenance costs will average $800 per year into the foreseeable future, and the car averages only 10 miles per gallon. Gasoline costs $3.40 per gallon, and you drive 17,000 miles per year. You now have an opportunity to replace the old car with a better one that costs $6,000....
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction. (The energy content of gasoline is 1.3 ✕ 108 J per gallon.) (a) What is the force exerted to keep the car moving at constant speed? N (b) If the required force is directly proportional to speed, how many...
Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
Please answer 1-8 on the $20 she ce th he $10 ck than bef ade think of their aie travel a freguenr-flyer likely to make waster et you versit 4. Toms is a double i and sold of $200 Dick h making ndable ruition payme r university ehis semester would your answer difer if you refund to any stu si offer of school during the fist S. Suppn questi of the semester? iLo ely to Kus om same your a...