anonymous one year ago Under what conditions would the length of a day be the same as the length of a night, year-round? A. if earth’s axis weren’t tilted B. if earth’s orbit were closer to the sun C. if earth had no moon D. if earth’s revolution were faster

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1. anonymous

@texaschic101

2. anonymous

A tilt in the earth causes the day and night period to change.

3. anonymous

so? i dont get it

4. anonymous

ohh so the anwser is A?

5. anonymous

The question is asking which condition would day period=night period. If earth did not tilt then day period would equal the night period.

6. anonymous

If it did tilt it would change.

7. anonymous

ooh ok thanks can you help with more

8. anonymous

9. anonymous

What season does the southern hemisphere experience when it is tilted away from the sun? A. autumn B. spring C. winter D. summer

10. anonymous

i only have like 7 more

11. anonymous

Hint: if it is away from the sun then it is the opposite.

12. anonymous

winter right?

13. anonymous

yes.

14. anonymous

During which season in the Northern Hemisphere is the earth at its farthest distance from the sun? A. autumn B. summer C. spring D. winter

15. anonymous

Hint: when sun is farthest from earth that mean it is ___

16. anonymous

summer?

17. anonymous

Farthest is the keyword.

18. anonymous

ohh winter

19. anonymous

?

20. anonymous

Yes.

21. anonymous

Closest to which date is the Southern Hemisphere tilted most directly away from the sun? A. December 21 B. March 21 C. June 21 D. September 21

22. anonymous

When northern hemisphere is winter, southern hemisphere is summer Northern hemisphere winter is in Dec 21

23. anonymous

See if you can figure it out.

24. anonymous

sepember 21?

25. anonymous

why do you think it is?

26. anonymous

wait nvm its july cause in july northerny heme is summer soltice

27. anonymous

You mean June 21?

28. anonymous

yea

29. anonymous

Correct!

30. anonymous

Upon which does the amount of gravitational pull between two bodies depend? A. only the mass of the smallest body B. the masses of both bodies C. only the mass of the largest body D. the speed by which they orbit

31. anonymous

Gravitational pull formula is $\frac{ M1M2 }{ r^2}$ multiplied by 6.686 x 10^n power. Can you figure it out now?

32. anonymous

no thisa is the 1 problem i dont know or have an idea could you plz just gimme the solution for this one

33. anonymous

M1 is mass of first object M2 is mass of second object Gravitational pull or force=$\frac{ M1M2 }{R^2 }$ multiplied by a constant.

34. anonymous

R is just distance.

35. anonymous

so?

36. anonymous

what does gravity rely on based on those formula?

37. anonymous

M1 is mass of first body. M2 is mass of second body

38. anonymous

the mass? of both bodies?

39. anonymous

You need those formula to figure out the gravitational pull.

40. anonymous

Yes that is correct!

41. anonymous

Gravitation pull happens everywhere between every bodies.

42. anonymous

What is the name for galaxies held together by gravity? A. solar system B. constellation C. binary system D. cluster

43. anonymous

Solar system:consist of planets and the sun Constellation:see attachment Binary system:a system consisting of two parts. Cluster:a group of similar things or people positioned or occurring closely together.

44. anonymous

Gravity definition- a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.