An engineer is designing an irrigation system to bring water to a farm. Which statement describes the clearest criterion for the solution?
O A. It must deliver 55 liters of water per minute when in use.
OB. It cannot block the use of other farm machinery,
O C. It cannot cost more than $4,000 per year to operate,
O
D. It must provide water to certain areas of the farm.

an obstruction

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 .

none, its a machine

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.