Converting copper ore to copper metal often involves many steps. First, the ore is crushed into small pieces. Then the crushed pieces are mixed with water to form a slurry, a soup-like mixture of crushed ore and water. The slurry is spun around in large vats with steel balls to crush/the ore to an even finer powder.
How many hours a week should Canadians be working? Home to Toronto â the financial capital of Canada - you might think Ontario has the longest work week in Canada. But it turns out Albertans work the hardest, racking up an average of 39 hours per week compared to the average Canadian, who works 36.6 hours per week. Quebecers have the shortest average work week with only 35.4 hours.
Updated June 12, 2015. How many hours a week do American work? According to the Bureau of Labor Statistics (February 2015), Americans work an average of 38.6 hours per week, slightly under the 40 hours which has been traditionally considered a typical work week. Men worked an average of 41.1 hours per week. Woman worked an average of 36.4 hours per week in paid employment.