Mass and weight are similar, but not the same thing. in which of the following examples would the objects weight change, but mass stay the same? a. a child grows taller b. a person goes on a medical diet. c. an astronaut travels from the earth to the moon d. a snowball rolls downhill and picks up snow making it grow

When an astronaut travels from the earth to the moon, her weight changes, but her mass remains constant.  (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 .