The basic function of a carburetor of an automobile is to atomize the gasoline and mix it with air to promote rapid combustion. As an example, assume that 30 cm3 of gasoline is atomized into N spherical droplets, each with a radius of 2.0 × 10−5 m. What is the total surface area of these N spherical droplets? [A] m2.

The total surface area of these N spherical droplets is 4.4929 m²

Explanation:

From the information given :

assuming that :

30 cm³ of gasoline is atomized into N spherical droplets &

each with a radius of 2.0 × 10−5 m

We are tasked to determine the total surface area of these N spherical droplets

We all known that:

Therefore

For each droplet; there is a required volume which is =  since it assumes a sphere shape .

Thus;

replacing radius(r) with 2.0 × 10−5 m; we have:

=

However; there are gasoline atomized into N spherical droplets with each with radius 2.0 × 10−5 m

For N ; we have ;

=

So; each droplet have a surface area =

=

=

The surface area per droplet is equivalent to

Thus;

The total surface area of these N spherical droplets will be :

=

= 4.4929 m²

The total surface area of these N spherical droplets is 4.4929 m²

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

your answer would be “dry”