The difference in heights of the liquid in the two sides of the manometer is 43. 4 cm when the atmospheric pressure is 755 mm hg. Given that the density of mercury is 13. 6 g/ml, the pressure of the enclosed gas is atm.

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 .

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

a.   mass number from atomic number