Eeeassseee ! i will give ! easy 30 !

for a moon orbiting its planet, rp is the shortest distance between the moon and its planet andra is the longest distance between the moon and its planet. what is a moon's orbital eccentricity if rp is equal to 0.27ra?

0.48

0.57

0.65

0.27
i will delete all incoherent !

The eccentricity of path of moon orbiting around its planet is 0.9628

Step by step explanation:

Given that a moon is orbiting around its planet

is the shortest distance between the moon and its planet

is the Longest distance between the moon and its planet

Relation between and is

We know that path of moon orbiting around its planet is ellipse.

Where, 2 is minor axis of ellipse and 2 is major axis of ellipse.

Also eccentricity of ellipse is given by

e=

for >

Now, using given relation.

e=

e=

e=

e=0.9628

Thus

The eccentricity of path of moon orbiting around its planet is 0.9628

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

c. 6tan80

step-by-step explanation: