H.W: For the tank shown in figure below, Find The amount of salt in the tank at any time. Ans: x = 2(100+t) 1500000 (100 + t)² Qin = 3 L/min Cin = 2 N/L V = 100 L Xo=50N Qout = 2 L/min Cout? 33

p (kPa) 200- V. V 2V, 3V, 圓

The reading of an automobile fuel gage is proportional to the gage pressure at the botoom of the tank. If the tank is 32 cm deep and is contaminated with 3cm of water. A.) If the tank is full of gasoline what should be the reading at the page in Pa? Use Ywater=9790N/m^3, Ygasoline=6670N/m^3 and Yair=11.8N/m^3 Choices: 1934,2839,3132,2134 B.) How many centimeters of air remains at the top when the gauge indicates full? Choices: 3.75,1.41,4.42,2.36 C.) If the tank is 0.5m^2 in area, calculate the volume of gasoline when the gage reads full Choices: 138 L,160L,145L,123L

B) For the following points, find the best results of the second derivatives, f"(2), f"(4), f"(6), f"(13) -T x 0 2 4 5 6 7 8 9 11 13 y 10 11 13 15 10 12 10 8 5 4 1 16 000 0-0-0 0-0-0 12h -104 114 5611 12h (12 Marks)