A5/8-inch (inside) diameter garden hose is used to fill a round swimming pool 6.1 m in diameter. how long will it take to fill the pool to a depth of 1.4 m if water flows from the hose at a speed of 0.40 m/s?

To solve the problem it is necessary to apply the concepts related to Discharge. The flow rate is the amount of volume of a fluid that circulates in a given time

By definition it is represented as

Where,

v = Velocity

A = Area

However, as the name implies it can also be represented as

Where,

V = Volume

t = time

In our case we have the values of,

Therefore replacing all these data in the previous equation we have

It will take about 6 days to fill the pool.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .