the radius of the planet Saturn is 6.03 x 10^7 m and its mass is 5.68 x 10^26 kg.

a. Find the density of Saturn (its mass divided by its volume) in grams per cubic centimeter.
b. Find the surface area of Saturn in square meters. (The surface area of a sphere is given by 4pir^2).

Question

the radius of the planet Saturn is 6.03 x 10^7 m and its mass is 5.68 x 10^26 kg.

a.  Find the density of Saturn (its mass divided by its volume) in grams per cubic centimeter.
b.  Find the surface area of Saturn in square meters.  (The surface area of a sphere is given by 4pir^2).

anonymous · Answer

$$Surface area = 4 \pi r^2$$
sub r in metres, then you'll get 4.5692 x 10^16 m^2

anonymous · Answer

wait wait hold on i made a mistake on (a)

anonymous · Answer

$$ρ=\frac{ mass }{ volume  }$$

$$V=\frac{ 4 }{3}πr^3$$

find volume first  :   substitute values of r  then you'll get 
 9.1842 x 10^-29  

5.68 x 10^26 kg is 5.68 x 10^29 g
then sub into density formula = sub mass n vol,  then you'll get 
1.6169 g cm^-3

anonymous · Answer

book says 0.618 gm/cm^3

anonymous · Answer

lol?

anonymous · Answer

yeah correct,... sorry i devided it the wrong way

anonymous · Answer

try invert my answer then you'll get your ans  ;P
sry devided wrongly

anonymous · Answer

ok and for b?

anonymous · Answer

also I am having trouble with teh other problem.  Can you check it please

anonymous · Answer

on the last question

anonymous · Answer

i solved b here o.o   on the top

anonymous · Answer

no i meant the other question

anonymous · Answer

oo ok.  gtg after that qns

anonymous · Answer

kk

anonymous · Answer

link of qns

anonymous · Answer

and wehre is b for this question?

anonymous · Answer

http://openstudy.com/study#/updates/52161994e4b00ebc7dc0946e

anonymous · Answer