If a cylindrical tank holds 100,000 gallons of water, whichcan be drained from the bottom of the tank in an hour, thenTorricelli's Law gives the volum

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Answered question

2020-12-31

If a cylindrical tank holds 100,000 gallons of water, whichcan be drained from the bottom of the tank in an hour, thenTorricelli's Law gives the volume V of water remaining inthe tank after t minutes as:
V(t)=100,000(1t/60)2
for: 0 is less than or equal to t which is less than or equal to 60
Find the rate at which the water is flowing out of the tank(the instantaneous rate of change of V with respect tot) as a function of t. What are its units? Fortimes t=0, 10, 20, 30, 40, 50, and 60 min, find the flow rate andthea mount of water remaining in the tank. Summarize your finding sin a sentence or two. At what time is the flow rate the greatest?The least?

Answer & Explanation

Aubree Mcintyre

Aubree Mcintyre

Skilled2021-01-01Added 73 answers

Jessicas
Jeffrey Jordon

Jeffrey Jordon

Expert2021-10-13Added 2605 answers

Step 1

Find V'(t)

V(t)=100000(1160t)2    0t60

V(a)=limtaV(t)V(a)ta

=limta100000(1160t)2100000(1160a)2ta

=100000limta(1160t)2(1160a)2ta

Step 2

=100000limta1260t+1602t2(1260a+1602a2)ta
=100000limta1260t+1602t21+260a1602a2ta
=100000limta260t+1602t2+260a1602a2ta
=100000602limta120t+t2+120aa2ta
=100000602limta(ta)120+t2a2ta

Step 3

=100000602limta(ta)120+t2a2ta
=100000602limta(ta)[120+(t+a)]ta
=100000602limta[120+t+a]
=100000602[120+(a)+a]
=2509(2a120)
=5009(a60)

Step 4

This can be expressed as a function of t.

V(t)=5009(t60)

evaluate at the given times

The flow rate is greatest at the beginning , the least towards the end. The pressure from the weight of the higher volume at the beginning helps the water to push itself out the drain opening.

xleb123

xleb123

Skilled2023-06-18Added 181 answers

Answer:
The flow rate of water out of the tank decreases over time, starting at 100,000 gal/min and gradually approaching 0 gal/min at t=60 minutes. The amount of water remaining in the tank also decreases over time, with the most significant decrease occurring in the first half of the hour. At t=60 minutes, the tank is completely drained.
Explanation:
To find the derivative, we can apply the power rule and the chain rule. Let's calculate it step by step:
V(t)=100,000(1t60)2
dVdt=ddt(100,000(1t60)2)
Using the chain rule, we have:
dVdt=100,000·2·(1t60)·(160)
Simplifying further:
dVdt=260·100,000·(1t60)
dVdt=130·100,000·(1t60)
Therefore, the instantaneous rate of change of V with respect to t, dVdt, is given by:
V(t)=130·100,000·(1t60)
The units of the flow rate will be gallons per minute (gal/min).
Now, let's calculate the flow rate and the amount of water remaining in the tank at specific times: t=0,10,20,30,40,50, and 60 minutes.
For t=0 minutes:
V(0)=100,000(1060)2=100,000 gallons (amount of water remaining)
V(0)=130·100,000·(1060)=100,000 gal/min (flow rate)
For t=10 minutes:
V(10)=100,000(11060)288,889 gallons (amount of water remaining)
V(10)=130·100,000·(11060)77,778 gal/min (flow rate)
Proceeding in the same manner, we can calculate the remaining values:
For t=20 minutes:
V(20)55,556 gallons (amount of water remaining)
V(20)55,556 gal/min (flow rate)
For t=30 minutes:
V(30)22,222 gallons (amount of water remaining)
V(30)33,333 gal/min (flow rate)
For t=40 minutes:
V(40)5,556 gallons (amount of water remaining)
V(40)11,111 gal/min (flow rate)
For t=50 minutes:
V(50)1,389 gallons (amount of water remaining)
V(50)2,778 gal/min (flow rate)
For t=60 minutes:
V(60)=0 gallons (amount of water remaining)
V(60)=0 gal/min (flow rate)
fudzisako

fudzisako

Skilled2023-06-18Added 105 answers

The rate at which water is flowing out of the tank, the instantaneous rate of change of V with respect to t, is given by the derivative of V(t) with respect to t:
dVdt=ddt(100,000(1t60)2)
Simplifying this expression gives:
dVdt=100,000·2·(1t60)·(160)
Therefore, the rate at which water is flowing out of the tank, in gallons per minute, as a function of t is:
dVdt=100,00030(1t60)
To find the flow rate and the amount of water remaining in the tank at times t=0, 10, 20, 30, 40, 50, and 60 minutes, we substitute these values into the expressions for dVdt and V(t).
For t=0 minutes:
dVdt=100,00030(1060)=100,00030
V(0) = 100,000
For t=10 minutes:
dVdt=100,00030(11060)=80,00030
V(10) = 81,481.48
For t=20 minutes:
dVdt=100,00030(12060)=60,00030
V(20) = 64,444.44
For t=30 minutes:
dVdt=100,00030(13060)=40,00030
V(30) = 49,382.72
For t=40 minutes:
dVdt=100,00030(14060)=20,00030
V(40) = 36,296.30
For t=50 minutes:
dVdt=100,00030(15060)=10,00030
V(50) = 25,925.93
For t=60 minutes:
dVdt=100,00030(16060)=0
V(60) = 0
From the above calculations, we can summarize that as time passes, the flow rate decreases and eventually becomes zero at t=60 minutes. The amount of water remaining in the tank also decreases with time until the tank is empty at t=60 minutes.
The greatest flow rate occurs at the beginning (t=0 minutes) and decreases steadily until it reaches zero at t=60 minutes. The least flow rate is zero at t=60 minutes when the tank is completely drained.

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