A positive charge of 8.0 × 10-4 C is in an electric field that exerts a force of 3.5 × 10-4 N on it. What is the strength of the electric field?

E = 0.437 N/C

Explanation:

Given that,

Charge,

Electric force,

Let the strength of the electric field is E. We know that, the electric force is given by :

F = qE

Where

E is the electric field strength

So, the strength of the electric field is equal to 0.437 N/C.

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 .

the answer would be   dignified - apex