The spectrum of the salts under excitation of cathode rays is a short continuous one in the blue region. This experiment shows that the cathode rays are accompanied by a stream of negative electrification. Fig. 220 shows a Crookes tube fitted with a metal plate, so that the cathode rays coming from C will strike it.
The Art Institute of Philadelphia Tuition Summary How much is tuition at The Art Institute of Philadelphia? Tuition and fees at The Art Institute of Philadelphia are $17,916 USD without financial aid. With room, board, and other fees combined, total cost of attendance is $35,703 USD. Cost & Aid
the average cost of books and additional supplies required to study at community college of allegheny county is $ 1000 a year which is a good bargain if compared to other colleges in pennsylvaniahe government reported that the median federal student loan amount for community college of allegheny county is approximately $ 4700 at the same time 9 90 % of the recent community college of allegheny county graduates have failed to maintain their federal student loan repayments in 2012