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Antifreeze is a compound added to water to reduce the freezing point of a mixture. In extreme cold (less than
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- The kinetic energy E of an object varies jointly with the object’s mass m and the square of the object’s velocity v . An object with a mass of 50 kilograms traveling at 16 meters per second has a kinetic energy of 6400 joules. What is the kinetic energy of an object with a mass of 70 kilograms traveling at 20 meters per second?arrow_forwardFind the constant of proportionality. y is directly proportional to x. If x=30, then y=15.arrow_forwardFind the intensities of earthquakes whose magnitudes are (a) R=6.0 and (b) R=7.9.arrow_forward
- A tank contains 200 gallons of fresh water. Brine containing 2 lbs/gal of salt enters the tank at 4 gpm and the mixture, kept uniform by stirring, runs out of at 3 gpm. Find the amount of salt in the tank after 30 minutes.arrow_forwardA health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 60 gal of a solution of 4% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 6% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level? gal?arrow_forwardUPVOTE WILL BE GIVEN. PLESE WRITE THE COMPLETE SOLUTIONS. NO LONG EXPLANATION NEEDED. In an oil refinery, a storage tank contains 2,000 gal of gasoline that initially has 100 1b of an additive dissolved in it. In preparation for cold season, gasoline containing 2 lb of additive per gallon is pumped into the tank at the rate of 40 gal/min. The well-mixed solution is pumped out at the same rate. Find the concentration of additive in the tank after 30 min.?arrow_forward
- In a mixing vat there are initially 100 litres of volatile liquid. 3 litres of fresh liquid are added per hour, but 15% of the current content of the vat is lost each hour due to evaporation. How many litres of liquid are there after 4 hours?arrow_forwardA 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution containing 0.2 lb of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. The solution kept uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long it will take for the amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17.5 minarrow_forwardA tank containing chocolate milk initially contains a mixture of 460 gallons of milk and 40 gallons of chocolate syrup. Milk is added to the tank at the rate of 8 gallons per minute and syrup is added at a rate of 2 gallons per minute. At the same time, chocolate milk is withdrawn at a rate of 10 gallons per minute. Assuming perfect mixing of milk and syrup, determine how much syrup will be in the tank after 10 minutes. O A. 55.50 gal. O B. None of the choices O C. 50.88 gal. O D. 60.23 gal. O E. 23.90 gal.arrow_forward
- A tank contains 200 liters of fresh water. Brine containing 2.5 N/L of dissolved salt runs into the tank at the rate of 8 L/min and the mixture kept uniform by stirring runs out at 4 liters/min. What is the amount of salt when the tank contains 320 liters of brine? 487.5 N 287.5 N 387.5 N 416.7 Narrow_forwardDrinking water is treated with fluoride before it is made available to the public. The ideal level is 0.7 ppm. A 20,000 gallon mixing tank is half full and contains 2 lb of fluoride. Fresh water enters from the lake at 2 gallons per minute. If the tank is dis- charged at 1 gallon per minute, how many pounds of fluoride is in the tank the moment it is full? Is it safe to drink using the conversion 1 lb/gal (US) = 119826 ppm?arrow_forwardCalculate the amount of rice bran (12.5% CP), corn (8.5% CP), soybean meal (49% CP) and copra meal (20% CP) in formulating 300 kg diet with 19% CP. Assume that the energy mixture will have a ratio of 2:1 and protein ingredients proportion is 1:3.arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning