the moon's orbit is 27 1/3 days, but the lunar cycle is 29 1/2 days. what accounts for this difference?​

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

How does the parallax of a nearby object compare to that of an object farther away?

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)