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Answered a Question in Astronomy
Use the sunrise equation to find the direction of sunrise:
cos(dir. of sunrise) = tan(latitude of observer)xtan(declination of... 
Answered a Question in Science
Galileo was summoned to Rome on a charge of heresy. Thomas Aquinas defined heresy in the 1300's as "a species of infidelity in men...

Answered a Question in Math
`d/(dy) [cos((1e^(2x))/(1+e^(2x)))] = sin((1e^(2x))/(1+e^(2x)))[d/(dx) ((1e^(2x))/(1+e^(2x)))]`
` ` `=...

Answered a Question in Math
y = x
`y' = cos(x) + 2sin(x)cos(x).`
x = 0
`y' = 1 + 0 = 1`
Substituting into the yintercept form of the...

Answered a Question in Science
Trees tend to develop thicker bark so as to adapt to the greater fire danger. Leaves tend to be smaller and thicker so as to limit...

Answered a Question in Math
Let
`u = sin(pi*x)`
`y = 2^(u), (dy)/(du) = 2^(u)log2`
`(du)/(dx) = cos(pi*x) * pi`
and `y' =...

Answered a Question in Math
`y = pi  x` is the exact answer.
At `x = pi` ``
`y = sin(sin(pi)) = sin(0) = 0`
`y' = 1/2 (cos(x  sin(x)) +...

Answered a Question in Science
First, let's get the symbols out of the way:
Iron(III) oxide: `Fe_(2)O_(3) `
Carbon monoxide: `CO`
And write the...

Answered a Question in Science
While it doesn't directly pertain to your question, I would need to know more of your experimental setup. You're using the goniometer...

Answered a Question in Science
The source: https://www.dartmouth.edu/~genchem/sigfigs.html
says...