Search the Internet and the Cybrary to find the mass and radius of
three of the nine planets in our solar system. Be sure that the masses
are expressed in kilograms and the radii are expressed in meters.
Using your data, calculate the gravitational acceleration on each of
the three planets you selected. Note: With the masses measured in
kilograms and the radii in meters, the units of gravitational
acceleration would turn out to be meters per squared seconds.
Use the gravitational accelerations that you calculated in Step 2 to
find the period of a 2 meter long simple pendulum on each of the three
planets. Note: The length of a simple pendulum is normally expressed
in meters, so it is sufficient to replace L with the number 2 in the
period expression.

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Request for Question Clarification by scriptor-ga on 14 Nov 2005 18:02 PST

Google Answers discourages and may remove questions that are homework
or exam assignments.

Regards,
Scriptor

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Clarification of Question by angel3972-ga on 14 Nov 2005 18:26 PST

Home study for personal enrichment.

Why don't you try Google calculator for the first part:

://www.google.com/search?q=mass+of+jupiter+in+kilograms
://www.google.com/search?q=radius+of+jupiter+in+meters

Google calculator is fun :)

T=2(pi)(L/g)^1/2

g=Gm/r^2

G=6.673*10^-11

L=2

Earth:
m=5.9736*10^24
r=6.371*10^6
g=9.82
t=0.639

Venus
m=4.869*10^24
r=6.051*10^6
g=8.87
t=0.708

Mars
m=6.4191*10^23
r=3.397*10^6
g=3.71
t=1.69

Jupiter
m=1.8987*10^27
r=7.149*10^7
g=24.8
t=0.253