4 ms·

Hmm, why is that?

• bocklund 9y ago
  with constant density, p, and spherical particles: $ m = pi * r^3 * p $
  • schoen 9y ago
    Have some Unicode symbols! m = πr³ρ (with no disrespect to your use of TeX) But also it should be m = (4/3)πr³ρ because the volume of the sphere is (4/3)πr³, not πr³.
    • IanCal 9y ago
      Alternative: have a mathjax bookmarklet :) https://www.checkmyworking.com/misc/mathjax-bookmarklet/ https://www.checkmyworking.com/misc/mathjax-bookmarklet/
      • schoen 9y ago
        Wow, nice!
    • jwilk 9y ago
      Not enough Unicode. Let's make it: m = (¾)⁻¹πr³ρ