If two smaller spheres are joined to make a larger sphere, what would be the radius of the larger new sphere?

Question

The radius of the small spheres are 7.00nm and 11.00nm, respectively, I'm trying to determine the % reduction of surface area of the smaller spheres and larger sphere

Answer 1

(4/3)pi*R^3=(4/3)pi(r1^3+r2^3)
R^3=(r1^3+r2^3)
R=(r1^3+r2^3)^1/3

Answer 2

The cubed root of two times the radius of the smaller sphere. Same as with a cube.

Answer 3

7^3 + 11^3 = 1674, cube root = 11.8737... = radius of new sphere.

previous surface proportional to 7^2 + 11^2 = 170
new surface proportional to 11.8737^2 = 140.984... = 82.93%

Answer 4

Scientists say they could basically degree the universe to a particular distance. And wager what they end the universes length is? precisely THAT DISTANCE!! they could't degree it, so as that they asininely assume that the universe is as enormous as they could degree. i think of it fairly is bullcrap. The universe is finished of opportunities, actually infinite. So the size of area could be threaded with the infinite probabilities of time, hence, area and area-time is infinite. And there additionally are infinite universes pancaked on good of another, wherein even infinite diverse realities exist intertwined below and above each universe, even plenty as to link each universe to fairly conjoin them interior the comparable limitations of all the entire multiexistences. it fairly is not annoying. infinite opportunities and action could be subsidized up by way of infinite area, or possibility might stop.yet of direction, there is the possibility that our universe is plenty youthful than the others, hence nonetheless interior the skill of infinite improve.

Answer 5

Assuming both smaller spheres are the same size?

Answer 6

How are you joining them? Volume, surface area, something else?

Answer 7

(small^2)*2