Answer:
The Star is moving towards us
Explanation:
Since there is a reduction in shift from the hydrogen line.
copper metal and steel metak
Answer:126
a substance that can be dissolved by a solvent to create a solution
Density = mass ÷ volume
= 217.0 g ÷ 24.3 cm³
= 8.93 g/cm³
∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³.
