Question

Problem 9. (2 pts) (Volume of a light bulb): An ornamental light bulb is designed by revolving the graph of y = }va – V2%, 05255 about the c-axis, where x and y are measured in feet (see figure below). The bulb has to be filled with an inert gas to reduce evaporation of the filament and prevent its oxidation. Calculate the amount of inert gas we need to fill the bulb. You can ignore the thickness of the glass of the bulb and also you can ignore any extra object that might be inside the bulb. y = 12-12 The amount of inert gas we need to fill the bulb is:

Answer 1

f(x) = (play) - mfg - Sis) - p[j + = y) ocad RV= valume. f()dx 。 「各+3 24 ) 41 [益中学 | sa* ], [+ ]音 “音(1) - it *,# ] 12 PX)