The distance between the centers of a small moon and a planet in our solar system is 2.0x10^8 m. If the moons orbital period is 5.0x10^4 s, what is the planet?
Here's the chart it gives us:
http://tinypic.com/r/2rww8wn/7
Could you tell me what planet it is from this chart asap? c: please and thanks <3
Here's the chart it gives us:
http://tinypic.com/r/2rww8wn/7
Could you tell me what planet it is from this chart asap? c: please and thanks <3
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No I'm not going to give you the answer - what is the point in that.
However, I'm going to guess that you are supposed to do the following ...
a) assume the moon goes around the planet in a circle
b) calculate the angular velocity of the moon (angular velocity x radius)
c) calculate the force on the moon (angular acceleration x mass of moon x radius)
d) calculate the gravitational force on the moon (mass of planet x mass of moon / radius ^2 x gravitational constant)
e) equate the two and note the mass of the moon disappears from the calculation
f) from that work out what the mass of the planet is
g) compare masses of planets in the table with your answer and see which planet has that mass
It's a nice question (it's how we know how much the Earth weighs) - try and work it out - it'll be more satisfactory than someone giving you the answer (and you'd still get no points if you can't show how you got the answer)
However, I'm going to guess that you are supposed to do the following ...
a) assume the moon goes around the planet in a circle
b) calculate the angular velocity of the moon (angular velocity x radius)
c) calculate the force on the moon (angular acceleration x mass of moon x radius)
d) calculate the gravitational force on the moon (mass of planet x mass of moon / radius ^2 x gravitational constant)
e) equate the two and note the mass of the moon disappears from the calculation
f) from that work out what the mass of the planet is
g) compare masses of planets in the table with your answer and see which planet has that mass
It's a nice question (it's how we know how much the Earth weighs) - try and work it out - it'll be more satisfactory than someone giving you the answer (and you'd still get no points if you can't show how you got the answer)