Calculus
A piece of wire 40cm long is cut into two pieces. One piece is bent into the shape of a square and the other is bent into the shape of a circle. How should the wire be cut so that hte total area enclosed is a) a maximum? /b) a minimum? Perimeter of square = x Circumference of ...
Chemistry
So I have to count the number of gaseous molecules first? Thanks!
Chemistry
Describe the effect on the concentration of the bold substance by the following change: decrease the volume The equilibrium is: 2HF(g) <--> F2(g) + H2; change in H=536KJ F2(g) is bolded. Shouldn't F2(g) increase when voume is decreased? Why is there no change? Thanks...
French
Thanks :)
French
To start a sentence, "In spring" Is it "En printemps," or "Au printemps"? Merci.
physics
nevermind, got it, thanks.
physics
acceleration=[(6.67x10^-11)(1250kg)]/(6.593x10^6)^2=1.92x10^-21 Are the numbers plugged in correctly? The answer seems off.
physics
An artificial satellite placed into earth's orbit has a mass of 1250kg. It travels at an average distance of 222.5km above the surface of the earth. The radius of the earth is 6370km. What acceleration due to gravity does the earth give the satellite? I know to find the di...
Calculus
Whoops, I combined 2 questions together. The question is y=x√(4-x).
Calculus
Find the intervals of increase and decrease for the following function: y=x√((x-1)^4) y'=[(4-x)^(1/2)]+(1/2)((4-x)^(-1/2))(-1)(x) y'=[(4-x)^(1/2)]-(1/2x)((4-x)^(-1/2)) y'=((4-x)^(-1/2))[((4-x)^-1)-1/2x] I've already factored it, how come the zeros of the ...
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