Mathematics, 20.09.2019 20:30, genaro19
initially tank i contains 100 litres of salt brine with a concentration of 1 kilogram per litre, and tank ii contains 100 litres of water. liquid is pumped from tank i into tank ii at a rate of 1 litre per minute, and liquid is pumped from tank ii into tank i at a rate of 2 litres per minute. the tanks are kept well stirred. let a1 be the amount of salt in kilograms in tank i and a2 be the amount of salt in pounds in tank ii.
(a) calculate a1(t) and c1(t). for which range of values of t are the expression for a1(t) and c1(t) valid?
(b) what is the concentration in tank i after 10 minutes?
Answers: 2
Mathematics, 21.06.2019 12:30, carolyntowerskemp
Hunter designs two flags for his adventure club. what is the length of the base, x, of the larger flag? enter your answer, as a decimal, in the box.
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Mathematics, 21.06.2019 16:00, ericavasquez824
The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.
Answers: 2
initially tank i contains 100 litres of salt brine with a concentration of 1 kilogram per litre, and...
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