Magnesium has a density of 1.071 g/cm3

. Aluminium has a density of 2.700

g/cm3
. An unknown metal has a mass of 15 g and a volume of 14 cm3
. Is the
unknown metal magnesium or aluminium? Show your work for complete marks.

Step-by-step explanation:

The density of the unknown metal is

mass / volume = 15 gm / 14 cm^3 = 1.0714 gm/cm^3    SO it is magnesium

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.