Question

9- A large water tank is in the shape of a cylinder with diameter 10m
and height 5m.
A small village uses about 100 litres of water per person per day.
The population of the village is 50.
Does the water tank hold enough water to supply the village for a
month if fully filled?
Show calculations to support your answer

Answer 1

Answer:

Yes it will

Step-by-step explanation:

Volume = pi*r^2*h = 22/7*5*5*5

                               =2750/7 m^3 = 392857 litres

100 litres per person per day

5000 litres per day for the whole population (50*100)

Assuming there are 30 days in a month,

5000 litres *30 days = 150,000 litres per month

Comparing the two volumes, the tank can supply water for even two months with 92857 litres remaining

Answer 2

Answer:

CHEMISTRY

A solution is defined as a:

A .

Homogeneous mixture of two or more substances

B .

Heterogeneous mixture of two or more substances

C .

Homogeneous mixture of liquid and solid components only

D .

Homogeneous mixture consisting of water as one of the components

A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. 

A solution consists of a solute and a solvent. 

The solute is the substance that is dissolved in the solvent.

For example, in a saline solution, salt is the solute dissolved in water as the solvent.