http://physlab-wiki.com/ 2026-04-24T06:53:36+00:00 http://physlab-wiki.com/ http://physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2024-06-12T12:20:49+00:00 Anonymous (anonymous@undisclosed.example.com) http://physlab-wiki.com/phylabs/lab_courses/phys-140-wiki-home/fall-experiments/cratering-lab/cratering_day2/setup?rev=1718209249&do=diff Setup Page For Day 2 Of Cratering Lab The setup in the lab is the same as for day 1. The main addition is the two story drop. Two story drop * Large containers of sand in KPTC112. * 25.4mm diameter steel ball. * Calipers. * Long tape measure. text/html 2025-09-11T12:47:23+00:00 Anonymous (anonymous@undisclosed.example.com) http://physlab-wiki.com/phylabs/lab_courses/phys-140-wiki-home/fall-experiments/cratering-lab/cratering_day2/start?rev=1757609243&do=diff Experiment Setup Cratering Day 2 (PHYS141) - 2025 In the first part of this lab, you took data on crater diameter as a function of kinetic energy and you made preliminary comparisons of that data to two possible models -- “ejection” and “deformation”. In this second part, you will dig deeper into what it means to $M$$V$$d^3$$M \propto V \propto d^{3}$$h$$U$$K = U = M g h$$g$$U = mgh$$h \propto d$$M \propto d^3$$K = U = Mgh \propto d^4$$d \propto K^{1/4}$$d \propto K^{1/4}$$K \propto V \propt…