Add the following vectors: 42.0m · s−1 [N 15.0◦ E] + 16.3m · s−1 [S 35.0◦ W]

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 .

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible