Word: hr
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...much. It's less than the value of a single question, which is about 10 points. Also, the SAT was radically changed last year. The College Board made it longer and added Algebra II, more grammar and an essay. Fewer kids wanted to take the new 3-hr. 45-min. test more than once, so fewer had an opportunity to improve their performance. Scores were bound to slide...
...tires as often as once a year. Unlike tires for automobiles, which can be cranked out by the millions, those for large mining trucks are labor intensive. Tires for your Chevy can be cured in as little as 15 min., for instance; that process takes as much as 12 hr. for an earthmoving truck's tires. The big manufacturers--Goodyear, Michelin and Bridgestone--don't have the production capacity to meet the rising demand...
...mine operators without such relationships are scouring the Internet to find tires overseas, in some cases buying second-rate alternatives from Belarus, Ukraine or China. Most of those are bias-ply tires rather than radials. The difference? Radials generally last 5,000 to 7,000 hr., depending on conditions; bias tires may last just a third as long and are more likely to blow under stress...
...hr. Average time spent watching TV each day in the American household in 2005--up more than an hour a day since...
...sections) isn?t much. It?s less than the value of a single question, which is about 10 points. Also, the SAT radically changed last year. The College Board made it longer and added Algebra II, grammar and an essay. Fewer kids wanted to take the new 3-hr., 45-min. test more than once, so fewer had an opportunity to improve their performance. Scores were bound to slide...