A 60 kg individual needs to work at a MET level of 8 to reach her target heart rate.  If the treadmill speed is set at 3.5 mph, what grade is needed?  If she exercises for 20 min. at this intensity, how many kcal will she expend?

Q: How many seconds will elapse between seeing a lightening and hearing the thunder, if the lightening…

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Q: if you mix 10lbs of peanuts costing $1.50 per pound with cashews costing $2.50 per pound, how many…

A: Since you have submitted two questions, we'll answer the first question. For the second question…

Q: A 44-kg woman cheats on her diet and eats a 700-Calorie (700 kcal) jelly doughnut for breakfast.…

A: (a) Mass of the woman is 44 kg and energy is one doughnut is 700 Calorie. 1 K cal=4.186×103 J.…

Q: A cross-country runner jogs at a rate of 15 feet per second. If she runs 300 feet from A to B, 450…

A: Speed of the runner is 15 feet per second. Total distance travelled is, Distance from A to…

Q: A pipe can full the tub alone in 10 minutes time, another can do it in 20 minutes and drain if…

A: The first pipe can fill the tub in 10 minutes, Therefore, in one minute, the pipe can fill 110 of…

Q: he feed on a lathe is set for 1/128 inch. How many revolutions does the work make when the tool…

A: the feed on the lathe is set for 1128inch to find the number of  revolutions when the tool advances…

Q: A vintner fortifies wine that contains 10% alcohol by adding a 70% alcohol solution to it. The…

A: The Final mixture is 1000 liters which is 16 x alcohol so, It contain 0.16 multiply 1000 = that is…

Q: Calculate the amount of Lidocaine required to compound 1 ounce of 2% (w/w) lidocaine dental gel.…

A: Solution:Part-IGiven:- Lidocain dental gel = 1 ounce                                             =…

Q: our pipes are required to fill a tank in 45 minutes. How long will it take if 6 pipes of the same…

A: Four pipes are required to fill a tank in 45 minutes. How long it take if 6 pipes of the same type…

Q: A small metal bar, whose initial temperature was 20° C, is dropped into a large container of bowling…

A: Let T(t) be the temperature of the bar after t time Given that T(0)=200C T(1)=220 C

Q: How many hours would it take to breathe one billion times if you were breathing at a rate of 12…

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Q: When an object was removed from a furnace it had temperature of 1500 deg. It was placed in a media…

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Q: Consider a cloudless day on which the sun shines down across the United States. If 2949 kJ2949 kJ of…

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Q: How many minutes would it take to breathe one billion times if you were breathing at a rate of 12…

A: Given that I am breathing at a rate of 12 times per minute. Let I need t minutes to breathe one…

Q: A 510 mL IV bag contains a 30% dextrose solution. How much of the original solution must be replaced…

A: Given that a 510 mL bag contains a 30% dextrose solution. The original solution is replaced with a…

Q: A hose fills a hot tub at a rate of 3.44 gallons per minute. How many hours will it take to fill a…

A: given rate of hose = 3.44 gallons per minute volume of hot tub = 342 gallons

Q: A chemist needs 60 milliliters of a solution that is 45% acid but has only 35% and 65% solutions…

A: Consider the needed amount is 60 ml of the 45% of the solution and the available amount is 35% and…

Q: A 2-lb-per-gallon salt solution is pumped in a 400-gallon tank at a rate of 2 gallons per minute. At…

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Q: A water at a boiling temperature of 100°C was left to cool in a room temperature 22°C. Six minutes…

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Q: A certain drug breaks down in the body at a rate of 18% per hour. If an initial dosage is 500…

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Q: containing 5% salt and another containing 20% salt. How many milliliters of each solution should she…

A: Given the query is to find the percentage of each type of solution to make 14% salt solution.

Q: How many grams of sodium fluoride should be added to 100,000 liters of drinking water containing 0.6…

A: As per company guideline we are supposed to answer only one question. for other solution kindly…

Q: In a nuclear power plant, a 1.0 kg of water at 74.5 °C is converted into 1.0 kg of steam at 115 °C.…

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Q: by 60 volts. How much amps will be produced? ____________________   Suppose the loudspeaker…

A: We have given  Resistance , R = 8 ohm Voltage , V=60 voltage Using ohm's law V=I R amps I=VR amps…

Q: If the Earth's average climate warms by 1.7°C in the next 50 years, how many degrees on average will…

A: Earth warms by 1.7 c in next 50 years

Q: A child is prescribed amoxicillin (35mg/kg/day) to be given 3 times per day. If he weighs 22 pounds,…

A: See the detailed solution below.

Q: A heavy rope, 60 ft. long weighs 2 lbs. / ft. and hangs over the edge of a building 120 ft. high.…

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Q: A biologist has two brine solutions, one containing 10% salt and another containing 70% salt. How…

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Q: As. Smith invested $29,000 in two accounts, one yielding 5% interest and the other yielding 10%. If…

A: Ms. Smith invested $29,000 in two accounts  let the amount deposited in one yielding 5% interest…

Q: A gumbo recipe calls for 4 quarts of cooked rice and yields 80 servings, 6 ounces each. If the…

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Q: How many seconds will elapse between seeing a lightening and hearing the thunder, if the lightening…

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Q: 10 liters per​ minute, how long will it take to fill the 3,400​-gallon ​pool?

A:

Q: A jet plane traveling at 570 mph overtakes a propeller-driven plane that has had a 2 h head start.…

A: Let x miles from the starting point does the jet overtake the propeller-driven plane.  We will use…

Q: A carpet is made with a blend of wool and other fibers. If the concentration of wool in the carpet…

A: Consider the given information: Weight of carpet is 183 pounds. Concentration of wool in carpet is…

Q: The 1990 earthquake in Dagupan City had a magnitude of 6.9. While the 2013 earthquake that occurred…

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Q: How many times more energy does a 450-nm blue photon have than a 656-nm red photon?  answer to three…

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Q: How many times more intense is an earthquake of magnitude 8.2 than an earthquake of magnitude 7.5?

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Q: A water hose had filled up of a pool after this rate, how many hours would it take to fill the pool?…

A: Given that  1/7 pool is to be filled in 1/10 hour To find total hours to fill the pool

Q: Two machines are turned on at 8:00 A.M. If one can produce 36 items each hour and the other can…

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Q: A carpet is made with a blend wool and other fibers. If the concentration of wool in the carpet is…

A: Given that the concentration of wool in the carpet is 75% and the carpet weighs in 161b. To find the…

Q: If 2L of solution needs to be administered through an IV over 24hours, then how many mililitres of…

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Q: Two resistors are wired in parallel, one of which is 100 ohms. If the total resistance is supposed…

A: The value of the second resistor needs to be 400 ohms.

Q: In term of concentration of Hydrogen Ions,  How many times more times acidic is a glass of Orange…

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Q: . A hose fills a hot tub at a rate of 4.5 gallons per minute. How many minutes will it take to fill…

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Q: How many milliliters of a  3.2%  bleach solution must be mixed with a  20%  bleach solution to…

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Q: A tank contains 800 liters of fresh water. Brine containing 2.5 N/L of salt enters the tank at 20…

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Q: One serving of a certain brand of yogurt contains 10 g of fat. The low-fat version contains 37.75%…

A: One serving of a certain brand of yogurt contains 10 g of fat. The low-fat version contains 37.75%…

Q: A chemist needs 130 milliliters of a 57% solution but has only 33% and 85% solutions available. Find…

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Q: 1: How many millilitres of a concentrated acid would need to be added to 30 ml of 20 % topical acid…

A: