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Yesterday, 12:06
... for construction of this tikz sketch, you used the coordinates from my MS paint sketch?
11 replies  160 view(s)

Yesterday, 01:29
Hey Peter! (Wave)
I edited your post to remove the duplicate content. Sorry for the late reply, I was busy "powering through" a tedious 3 hour...

August 19th, 2017, 21:16
$\sqrt{(\sqrt{3})^2+(7)^2}=\sqrt{52}$ ...
1 replies  39 view(s)

August 19th, 2017, 17:09
@ I like Serena ...
Nice sketches. What software did you use to make them? I do mine on MS Paint.
11 replies  160 view(s)

August 19th, 2017, 10:58
I did so to calculate the force R in terms of W.
The forces labeled R in the diagram are the forces acting on the rods by the weight of the disc....
11 replies  160 view(s)

August 18th, 2017, 17:25
$\displaystyle \sum F_y = 0 \implies 2N = 3W \implies N = \dfrac{3W}{2}$
Torques about the hinge for one of the rods ...
$R \cdot 2r +...
11 replies  160 view(s)

August 18th, 2017, 12:24
not 100% sure this is it ... still pondering the hinge where the rods meet.
11 replies  160 view(s)

August 17th, 2017, 02:10
Small quibble...axis of symmetry is:
t=\frac{1}{105}
So, since the parabola opens up, the vertex is a minimum, so the minimum distance will be...
8 replies  159 view(s)

August 17th, 2017, 00:59
For a parabola of the form:
f(x)=ax^2+bx+c
We know the axis of symmetry is at:
x=\frac{b}{2a}
So, for:
8 replies  159 view(s)

August 16th, 2017, 22:42
Overview:
This product is designed to autopost a welcome thread for all new users once they have completed all verifications, and/or returning...
0 replies  20 view(s)

August 16th, 2017, 21:58
Isn't this question a duplicate of the following?
231.12.3.65 Determine the smallest distance between a point and a line
1 replies  37 view(s)

August 16th, 2017, 17:25
Hey freedomdorm!
I saw you posted this update on to another question so I gave you your own thread. Are you curious about the other question or do...
1 replies  40 view(s)

August 15th, 2017, 08:55
Here is this week's POTW:

Can an arc of a parabola inside a circle of radius 1 have a length greater than 4?

Remember to read...
0 replies  50 view(s)

August 15th, 2017, 08:54
Congratulations to Opalg for his correct solution to this week's POTW, which follows:
Expand $(a+1)^n$ binomially to get $$a^{n+1}  (a+1)^n =...
1 replies  89 view(s)

August 14th, 2017, 07:29
$\displaystyle \begin{align*} B \left( b_1, b_2, b_3 \right) \end{align*}$ is a point on $\displaystyle \begin{align*} \mathbf{r} \left( t \right)...
2 replies  93 view(s)

August 14th, 2017, 01:09
I was just reading about how tree leaves can form "pinhole cameras" and the eclipse can be seen in their shadows:
4 replies  166 view(s)

August 13th, 2017, 16:16
You probably should not use the phrase "complex form" here. These are complex number which are typically written in one of two forms, "Cartesian...
3 replies  67 view(s)

August 13th, 2017, 14:03
In case you're wondering how I obtained the following factorizations:
1+3i=(1+i)(2+i)
22i=(1+i)^3
What I did for the first was to write:
...
13 replies  247 view(s)

August 13th, 2017, 10:34
Hey RTCNC,
I do agree that this question is similar to the one you asked yesterday, so for me that only highlights the fact that you should work...
3 replies  82 view(s)

August 13th, 2017, 10:15
What definition for "complex form" were you given? That was the confusing issue for me. I am aware of rectangular, polar and exponential forms for...
13 replies  247 view(s)

August 13th, 2017, 08:25
Basically, you keep asking same question over and over again! Are you actually learning anything?
If you have n objects, the probability of...
3 replies  82 view(s)

August 12th, 2017, 22:07
I'm wondering if what we're supposed to do here is:
1+3i=(1+i)(2+i)
22i=(1+i)^3
And so the product is:
...
13 replies  247 view(s)
 Date of Birth
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 BS Mathematics, East Tennessee State University
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