If you were to sit a hot cup of water out side it would frezze faster
Heat<span> may be </span>transferred<span> by means of conduction, convection, or radiation. </span>
7. solar flare: f.
8. core: h.
9. chromosphere: b.
10. sunspot: d.
11. corona: c.
12. nuclear fusion: j.
13. photosphere: a.
14. solar wind: g.
15. prominence: e.
16. radiation zone: k.
17. convection zone: i.
Answer: 2940 J
Explanation: solution attached:
PE= mgh
Substitute the values:
PE= 10kg x 9.8 m/s² x 30 m
= 2940 J
You may confuse two minerals by their colors so using streak is another way for showing their "true colors "