1 Soldering more than 3 rings can cost $55 to $75. 2  The price for removing a stone from a ring can fall between $6 and $50 depending on the type of ring and its size. 3  Straightening or refinishing a ring can cost between $14 to $50. 4  For example, the website BCDeskin.com offers repair for various types of jewelries.
By matching the Measured Density to the Calculated Density, you are likely to find values similar to the following: Earth has a core filling about 65% of its interior. Venus: 65%, Mars: 40%, Mercury: 80%, The Moon: 40%.
So the terrestrial planets are similar to Earth. For example, the average density of Mercury is 5.427 g/cm3. Compare this to Earthâs density of 5.515 g/cm3. Planets with this kind of density are made up of mostly rock and metal. Compare this to the density of Saturn, at 0.687 g/cm3. Saturn is so light that it would float on water is you had a pool large enough.