Consider a problem of two connected tanks T1 and T2 containing 300 gallons of water each. Initially, Tank 1 contains 501b of salt while tank 2 contains 100 lb of salt. The liquid circulate between the two tanks at the rate of 10 gallons/min. Tank T1 Tank T2 300 gal 300 gal The amount of salt in T1 and T2 represented by Y1(t) and Y2(t) changes with time t due to flow of liquid and continuous stirring. 1. Calculate the amount of salt in each tank after 15 min. 2. How long will it take to get equal amount of salt in each tank.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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