<u>Answer:</u> The density of the quartz is 2.68 g/mL
<u>Explanation:</u>
We are given:
Volume of graduated cylinder = 50.3 mL
Volume of quartz + graduated cylinder = 64.8 mL
Volume of quartz = [64.8 - 50.3] mL = 14.5 mL
To calculate the density of substance, we use the equation:

Mass of quartz = 38.9 g
Volume of quartz = 14.5 mL
Putting values in above equation, we get:

Hence, the density of the quartz is 2.68 g/mL
Answer:
Friction
Explanation:
Friction is the name of the force that opposes motion.
Answer:
Latitude and longitude are imaginary lines that help us label every place on the surface of the earth. The most important line of latitude is the equator, which runs horizontally around the fattest part of the earth.
Explanation:
Answer:
agua
Explanation:
por que estamos en la planeta