05/20/15
help with this problem please
can someone solve this problem please?Nancy and Adriana use a metal alloy that is 16% copper to make jewelry. How many ounces of an 11% alloy must be mixed with a 24% alloy to form 130 ounces of...
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05/07/15
Show that when r changes by ?r; the change in the acceleration due to gravity, g; is given by ?g ˜ -2g ( ?r / r)
The acceleration due to gravity, g; is given byg = GM / r2 ;
where M is the mass of the earth, r is the distance from the center of the earth,and G is the universal gravitational constant.
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