Arwan finds a piece of quartz while hiking in the mountains. when he returns to school, he takes it to his science teacher. she him determine the mass to be 788.9 g. she also tells arwan that the density of quartz is 2.6 . what is the volume of arwan’s piece of quartz?

The volume of Arwan’s piece of quartz is

Explanation:

Mass of the Quartz piece brought by Arwan : 788.9 g

Density of the quartz =

Density of the substance is defined as mass present in per unit volume of the substance. It is measured in gram per centimeter cube.

Hence,the volume of Arwan’s piece of quartz is

a. is the answer because they are not shared

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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