There are two lenses having focal length of - 25 cm and + 20 cm. What are the nature of the lenses. Calculate power of each lens and total power of the combination of two lenses.

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Ответ:

natishtaylor1p8dirz

05.07.2022

Physics

(a) m = 1058346.67 kg

(b) V = 1587.52 m³

Explanation:

$Inlet\ Volume\ Flow\ Rate = (2\ m^3/min)(1\ min/60\ s) = 0.0333\ m^3/s\\Outlet\ Volume\ Flow\ Rate = (Outlet\ Velocity)(Area) = (1.5\ m/s)(\pi)(0.15\ m/2)^2\\Outlet\ Volume\ Flow\ Rate = 0.0265\ m^3/s$

(b)

The volume of oil in the tank in 24 hours can be found as follows:

$Volume\ of\ Oil = m = Iinitial\ Volume + (Inlet\ Volume\ Flow - Outlet\ Volume\ Flow)(Time)\\V = 1000\ m^3 + (0.0333\ m^3/s - 0.0265\ m^3/s)(24*3600\ s)\\$

V = 1587.52 m³

(a)

Now, for the mass:

$Mass\ of\ Oil = m = \frac{Volume}{Specific Volume} = \frac{1587.52\ m^3}{0.0015\ m^3/kg}\\\\$

m = 1058346.67 kg

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