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Steve
Differential Equations beginner question?
Okay... slightly annoyed.. My professor Did Not go through the method of finding a solution to this sort of question:
Find the values of W for which Y=Cos(W(T)) satisfies ((D^2Y)/(DT^2))+16Y=0
apparently there are two values to find here, even helping me with the method to find one of these values would be appreciated so i can find the other on my own..
3 AnswersMathematics10 years agoTI-83 Calculus 2 Calculator question?
Ive read through the manual and have found nothing on it, so I'm assuming these calculators cant do what I'm looking for. Does anyone know if there's a way to find whether or not an infinite series converges? or a Series that does have an end converges? A general example of the type of equation I'm trying to put in is like in the picture below.
http://tinypic.com/r/2jbt7q0/5
--The answer is 1/192.. i already have that.
2 AnswersMathematics10 years agoPhysics String Tension question?
A 300 g ball moves in a vertical circle on a 1.09 m long string. If the speed at the top is 3.90 m/s, then the speed at the bottom will be 7.61 m/s.
I've found the ball's weight to be 2.94 N,
The problem I'm having is with finding the tension in the string when the ball is at the top, and the tension in the string when the ball is at the bottom...
2 AnswersPhysics10 years agoPhysics Cutting a swinging string question?
Now generally I'm pretty decent and physics and have never had to come here for any sort of help.. but this problem has me stumped:
A 190 gram ball on a 60 cm long string is swung in a vertical circle about a point 200 cm above the floor. The tension in the string when the ball is at the very bottom of the circle is 6.1 Newtons. At the very bottom of the circle, a very sharp knife is suddenly inserted, as shown in the figure , to cut the string directly below the point of support.
How far to the right of where the string was cut does the ball hit the floor?
http://tinypic.com/r/2nairgk/5 --I was given this picture for reference.
Any guidance even would be appreciated.
2 AnswersPhysics10 years agoTaylor Polynomial calculations?
Having issues figuring out how to do this..
What Degree Taylor Polynomial about x=0 do you need to calculate Cos(1) to four decimal places.. to 6 decimal places?
what I understand is that the error bound for the nth term for Cos(x) on the interval [0,1] is 1/(n+1)! I'm just not sure where to go from here.
1 AnswerMathematics10 years agoCalculus 2 Taylor Polynomial Error Bound?
Asking this on here a couple times because this section isn't making any sense at all to me and I'm hoping one gets noticed.. Its bugging me to not be getting this..
Suppose you approximate f(t)=e^t by a Taylor polynomial of degree 2 about t=0 on the interval [0,0.5].
Use "error bound" to estimate the magnitude of the largest possible error. Use the estimate e<3 to eliminate e from the answer.
1 AnswerHomework Help10 years agoMoles of Water in Copper (II) Sulfate Pentahydrate?
I'm awful at this still. Anyone mind guiding me through finding the amount of moles of water in.. lets say 2 moles of copper (II) Sulfate Pentahydrate? Trying to get a grasp on this...
3 AnswersChemistry10 years agoSecond Degree Taylor Polynomial?
Anyone mind explaining how to find the second-degree Taylor polynomial for f(x)=4x^2-7x+2 about x=0? Even just some guidance would be appreciated.
1 AnswerMathematics10 years agoCalculus Limit of Sequence?
Our professor didnt really go over Sequence Limits too much today.. So i wanted to get a jump on what should be gone over next week. Anyone mind explaining How to find the Limit of a sequence with General Terms given by...
Sn=(-.6)^n ?
I'm slightly lost..
1 AnswerMathematics10 years agoCalculus Circular Hoop Density Problem?
For an extra credit Calc problem, my class is going to get a problem similar to this one on an upcoming test if we can determine the steps to and solve it. If anyone would mind giving me any sort of advice or lesson.. It'd be much appreciated.
A Circular Hoop made of Plastic has a density of 1 /16pi grams/cm^3. When resting on the floor, a cross section of the hoop is an isosceles triangle where the base and height are both 4 cm. what is the mass of the hoop in grams? Below is a link in order to help visualize this problem.
1 AnswerHomework Help10 years ago