For football, one reason it would less hurt you is because you were more ready for impact (ie muscles were ready, better body/leg/shoulder/etc position) therefore there is less chance for you to get a sprained ankle to injured shoulder. As for the car: slow down.
Sorry got back from lunch,
Why would i square 1-sin(x) and then divide the integral by 4?? do you know how to get the integral of : f(x) = 1-sin(x) ??
Well is the equation: (9(x^4))/625 OR (9)(x^(4/625)) ??
Ok first make sure if you use your calculator that it is in radians... because that is not what I got for the area of #1. By dish method do you mean disk lol? Anyways, since you revolve around the y axis, you have to put your function in terms of x =, now i don't know if what you have is right...
Something that might help you:
Area from a-->b = integral from a-->b of f(x) dx
Volume from a-->b = (pi)(integral from a-->b of f(x)squared dx)
So for #1 find the integral of: 1-sinx dx (from 0 to pi/2)
See what you get!
You can find the molar mass of Ba(OH)2 with the periodic table, the change in mass of the crucible is the mass of the Ba(OH)2, which means you can find the # of moles of Ba(OH)2 you got. And finally you know that concentration is mole per liter.
Hehe never took the course but got 0.48 as an answer. Don't forget that the area of a circle is (pie)(r^2). Also little hint: units of pressure are 1Pa = 1N/m^2!, in this case the pressure on both sides are the same.
edit: what formula is used for part b?
First you ll need to get the v-air which is given by: v = (332.5)(squareroot(T/273))
where T is the temperature in Kelvin. After that you know that v = f x lambda, and now i think: Ln+1 - Ln = 1/2 lambda.
Homework Statement
Knowing: y(x,t) = Acos(kx-ωt)
Find the partial derivatives of:
1) dy/dt
2) dy/dx
3) d^2y/dt^2
4) d^2y/dx^2
Homework Equations
The Attempt at a Solution
These are the answers the actual answers:
1) dy/dt = ωAsin(kx-ωt) = v(x,t) of a particle
2) dy/dx =...
If you are using Excel, you would have to add a "trend line", or you can always draw it but I'm too lazy for that :P. Anyways it means to draw/put a line on a graph indicating a statistical trend. Some dots can also not be included because of it being a wrong or bad value. In Excel, just right...
Try using this equation:
x = (x-initial) + (V-initial)(t) + (1/2)(a)(t^2)
(remember that in your case the change in x = 0, which means x - (x-initial) = 0)
Someone correct me if I am wrong :0
I'm a native French speaker from Quebec, but I learned English starting in grade 6 then kept studying in English. Rosetta stone is a great way to do it and easy to find with Amazon, yes its a little expensive but seems to do the work well since it has good ratings.
Here is the link...