A 9.00 V storage battery is connected to three resistors, 6.00 Ω, 15.0 Ω, and 23.0 Ω, respectively. The resistors are joined in series. Calculate the equivalent resistance. Answer in units of Ω.

Explanation:

When N resistors are placed in series, they are placed along the same branch of the circuit, and the current flowing through them is the same.

The equivalent resistance of a series of N resistors is given by

So, it is equal to the sum of the individual resistances.

In this problem, the three resistor's resistances are:

Therefore, the equivalent resistance of the circuit is:

So, the circuit has an equivalent resistance of 44 Ω.

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 .