i need to get the answer of this question today today its the test, plz someone

Guest Oct 17, 2014

#1**+5 **

The volume of the tank is given by

V = (4/3)pi(r^{3}) where r is the radius

So we have

V = (4/3)pi(7.7m)^{3} = about 1912.320958 m^{3}

And 1 m^{3} = 1000L

So 1912.320958 x 1000 = about 1,912,321 L

CPhill
Oct 17, 2014

#2**+5 **

**A Spherical water tank is of 7.7m radius. How many liters of water can it contain**

**I. The Volume of the Sphere in m^3:**

**$$\small{\text{ $ \begin{array}{rcl} V &=& \frac{4}{3}\pi r^3 \\\\ V &=&\frac{4}{3}\pi (7.7)^3\\\\ V &=&\frac{4}{3}\pi * 456.533\ m^3\\\\ V &=& 1912.32095856 \ m^3 \end{array} $ }}$$**

**II. The Volume of the Sphere in liters:**

**$$\small{\text{ $ 1\ m^3 = 1000\ liters $ }}$$**

$$\small{\text{

$

V=1912.32095856\not{m^3} *\frac{1000\ liters}{1\ \not{m^3}}=1912320.95856\ l

$

}}$$

heureka
Oct 17, 2014

#3**+5 **

Volume is (4/3)*pi*radius^{3} and a litre is 10^{-3}m^{3}

So Volume = (4/3)*pi*7.7^{3} m^{3} ≈ 1912 m^{3} = 1.912*10^{6}L

Hmm. Plenty of answers. Luckily they're all the same!

.

Alan
Oct 17, 2014