When is an object that has been dropped from a great height through the air closest to vein in a free fall?
at it's terminal velocity < -- this one?
when it has it's smallest acceleration
when it's velocity downward is largest
when the velocity downward is smallest

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 .

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.