Answer:
0.25p.a
Explanation:
force=15N area=60m²
so pressure =force/area =15N/60m²=0.25p.a
density = 7660kg/m^3
d=m/v
=30640/4
=7660
21: Mass
22: Unbalanced Force
23: Friction
24: Balanced
The answer is B, although technically that is an eclipse.