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Originally posted by jeff68
reply to post by Elepheagle
they said the Earth like planet's orbit was 1.6 days so it would be to close to it's star. The planet would be way to hot to live on.
Originally posted by misinformational
A question to those more mathematically inclined that I: If a sphere has 1.5 times the radius of another sphere, does that make the diameter of the larger sphere 3 times the size of the smaller sphere (or does the diameter remain 1.5 times that of the smaller sphere)?
Regards,
An Inquiring Mind
Originally posted by Soylent Green Is People
the diameter of sphere B (3 units) is ALSO 1.5 times greater than the diameter of sphere A (which is 2 units)
The volume, on the other hand, would be 3.375 times greater, or the cube of the ratio between the radii (i.e. the ratio between the radius of spheres A and B is 1.5 --- and --- 1.5^3 = 3.375)
Originally posted by Soylent Green Is People
Originally posted by misinformational
A question to those more mathematically inclined that I: If a sphere has 1.5 times the radius of another sphere, does that make the diameter of the larger sphere 3 times the size of the smaller sphere (or does the diameter remain 1.5 times that of the smaller sphere)?
Regards,
An Inquiring Mind
It's easier if you put actual numbers in and see what happens:
If sphere "A" has a radius of 1 unit, then it has a diameter of 2 units.
If sphere "B" has a radius of 1.5 units, then it has a diameter of 3 units.
So the radius of sphere B (1.5 units) is 1.5 times greater than the radius of sphere A (which is 1 unit)
AND
the diameter of sphere B (3 units) is ALSO 1.5 times greater than the diameter of sphere A (which is 2 units)
The volume, on the other hand, would be 3.375 times greater, or the cube of the ratio between the radii (i.e. the ratio between the radius of spheres A and B is 1.5 --- and --- 1.5^3 = 3.375)
[edit on 8/26/2010 by Soylent Green Is People]
Originally posted by DOADOA
why can't you just say its 150% the size of earth. one whole earth plus another half an earth. you get picture.
Originally posted by DOADOA
Originally posted by Soylent Green Is People
Originally posted by misinformational
A question to those more mathematically inclined that I: If a sphere has 1.5 times the radius of another sphere, does that make the diameter of the larger sphere 3 times the size of the smaller sphere (or does the diameter remain 1.5 times that of the smaller sphere)?
Regards,
An Inquiring Mind
It's easier if you put actual numbers in and see what happens:
If sphere "A" has a radius of 1 unit, then it has a diameter of 2 units.
If sphere "B" has a radius of 1.5 units, then it has a diameter of 3 units.
So the radius of sphere B (1.5 units) is 1.5 times greater than the radius of sphere A (which is 1 unit)
AND
the diameter of sphere B (3 units) is ALSO 1.5 times greater than the diameter of sphere A (which is 2 units)
The volume, on the other hand, would be 3.375 times greater, or the cube of the ratio between the radii (i.e. the ratio between the radius of spheres A and B is 1.5 --- and --- 1.5^3 = 3.375)
[edit on 8/26/2010 by Soylent Green Is People]
why can't you just say its 150% the size of earth. one whole earth plus another half an earth. you get picture.