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a power plant 55 kg of fly ash per hour up the stack. the flow rate of the hot gases in the stack is 1.0 m^3/s. what is the concentration of the fly ash in micrograms per cubic meter?
Concentration = (120×453.59)/((60×60)(25×30483)) = 21.357 g/m3=21357000 micro grams/m3
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If a car has an EPA mileage rating of 30 miles per gallon, what is this rating in kilometers per liter? (1 L = 1.06 qt)
1 mile = 1.609 kilometres(km)1 gallon = 3.785 litres (L)Therefore, mileage of this car 30 miles per gallon is:30 ×1.609 km per gallon=48.27 km per 1× 3.785 litresMileage of this...
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Carl Lewis , a sprinter in the 1988 Olympic Games, ran the 100 meter dash in 8.90 sec. what was his speed in miles per hour ?
Speed=D/T100÷8.90=11.236 m/s1m/s=2.237miles per hour11.236m/s to miles per hour=11.236×2.237=25.135 miles per hour
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Calculate the root mean square speed of argon molecules in meter per second and kilometers per hour (hint 78.8 gram per mile) at 30C
78.8×303= 23876.4
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worldwide emissions of carbon dioxide are estimated at 2x10^9 tons per year. what is this emission rate in pounds per hour
1 Short Ton [US] = 2 000 Pounds 2x10^9 Ton = 4 * 10^13 Pounds 24 hours in a day times 365 days 24 x 365 = 8760 hours Emission...
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A train is traveling 200 kilometers per hour. What is that in meters per second. Report your answer with the correct number of significant figures
200 km/h = 200 x 1000 / 3600 =55.5555556 m/s
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The average speed of helium in air at 25°C is 1255 M/S. Convert the speed to miles per hour (1 mile equals 1609.3m)
1255/1609.3 = 0,779842167 mile/s.0,779842167 mile/s x 3600 = 2 807,4318 miles/hour
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Let a doctor earns $20 per hour, a plumber $ 5 per hour, and a professor $ 10 per hour. Everything else the same, which one will devote more hours to negotiating the price of a new car? Explain
A doctor earns $20 an hour,assuming all of them work 8 hours a day,in a day the doctor earns $160,assuming, assuming he works 5 days a week,he earns$ 800,in...
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a) Let a doctor earns $20 per hour, a plumber $ 5 per hour, and a professor $ 10 per hour.
Everything else the same, which one will devote more hours to negotiating the price of a
new car? Explain
The time value is different for the three individuals. The doctor values their time at 20$ per hour, the plumber at 5$ per hour, and the professor at 10$ per...
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You have one scarce hour to spend between playing for a tournament or taking classes in a tutorial for Rs. 500 per hour. You choose to play for tournament. What is the opportunity cost of playing?
The two alternatives the individual faces in this question are to spend one hour playing for a tournament and spend one hour to a tutorial class for Rs 500 per...
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