Write the uncertainties for the following instruments. DO NOT include units with your answer. The name of the instrument is beneath its photograph.

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors

To solve a problem using the equation for kepler ‘s third law , enrico must convert the average distance of mars from the sun from meters into astronomical units . how should he make the conversion ?