The purpose of the tension protractor apparatus is to? (could be more than one answer)

A) demonstrate the use of pulleys with multiple forces.

B) visualize equilibrium on an object under multiple forces.

C) visualize forces by different length of string.

D) demonstrate the vector nature of forces.

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 right answer is 0.3 meters per second

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.