This question can likely be answered using the formula E=hc/w where w is wavelength, h is Planck's constant, c is the speed of light, and E is energy in Joules. 5 electrons are emitted when calcium is flashed with light of wavelength 340 nm and intensity of 50 percent.
Remove the hog-rings as you roll the cover up over the seat. If your seat has a hard back, there will be a series of screws along the bottom that hold the bottom of the hard back to the seat. Unscrew these, and then pull open the hard back slightly to determine if the hardback needs to be slid up or down to be removed.
Stock Number: SS50B. These hog rings are designed for use in the Ringer. They are D rings that are 15 gauge with an open ring size of 9/16 in. and a closed ring size of 3/16 in. Loading capadity is 50 rings per strip. Each box holds 50 strips for a total of 2,500 rings.