Americans combined drive about 4.0 x 109 kilometers a day and get an average of 20 miles per gallon of gasoline. for each kilogram of gasoline that is burned about 3 kg of carbon dioxide (co2) are produced. with the density of gasoline as 0.93 g/cm3, how many kg of co2 are emitted by u. s. cars into the atmosphere each minute? (1 gallon = 3.7854 l, 1 mile = 1.609 km)

a. 9.12 x 105 kg co2/min
b. 5.47 x 107 kg co2/min
c. 4.7 x 109 kg co2/min
d. 4.38 x 106 kg co2/min

of carbon dioxide gas.

Explanation:

Average distance covered by Americans in a day=

1 day = 24 × 60 min = 1,440 min

Average distance covered by Americans in a minute=

Average mileage of the car = 20 miles/gal = 32.18 km/gal

1 mile = 1.609 km

20 miles = 20 × 1.609 km = 32.18 km

Volume of gasoline used in minute =

(1 L = 1000 mL)

Mass of 86,320.00 gallons of gasoline = m

Density of the gasoline = d =

1 kilogram of gasoline gives 3 kg of carbon dioxde gas .

Then 303,882.84649 kg of gasoline will give :

of carbon dioxide gas.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.