Figure skating is a sport in which individuals, pairs, or groups perform on figure skates on ice. It was the first winter sport to be included in the Olympic Games, when contested at the 1908 Olympics in London. The Olympic disciplines are men's singles, ladies' singles, pair skating, and ice dance; the four individual disciplines are also combined into a team event, first included in the Winter Olympics in 2014. The non-Olympic disciplines include synchronized skating, Theater on Ice, and four skating. From intermediate through senior-level competition, skaters generally perform two programs (the short program and the free skate), which, depending on the discipline, may include spins, jumps, moves in the field, lifts, throw jumps, death spirals, and other elements or moves.
The blade of a figure skate has a groove on the bottom creating two distinct edges: inside and outside. Judges prefer that skaters glide on one edge of the blade and not on both at the same time, which is referred to as a "flat edge". Skates used in singles and pair skating have a set of large, jagged teeth called a "toe pick" on the front of each blade. The toe picks are mainly used to help launch the skater into the air for the take-off when performing jumps. Ice dance blades have smaller toe picks than blades used for the other disciplines. During a spin, skaters use the "sweet spot" of the blade, formally called a rocker, which is the roundest portion of the blade, just behind the toe pick and near the middle of the blade.
Figure skaters compete at various levels from beginner up to the Olympic level (senior) at local, regional, sectional, national, and international competitions. The International Skating Union (ISU) regulates international figure skating judging and competitions. These include the Winter Olympics, the World Championships, the World Junior Championships, the European Championships, the Four Continents Championships, the Grand Prix series (senior and junior), and the ISU Challenger Series.
The sport is also associated with show business. Major competitions generally conclude with exhibition galas, in which the top skaters from each discipline perform non-competitive programs. Many skaters, both during and after their competitive careers, also skate in ice shows, which run during the competitive season and the off-season.
I have a blank 12ga round producing 2000psi In a .75" ID. cylinder. The 2000 psi shell is producing twice the power I need to push my 3lb rod out of the cylinder. The cylinder is 10" long and the rod is 8" long. There is 1" of room between the expanded shell and the solid shaft. I was...
Hi,
I have a couple of problems I'm trying to figure out:
1) 1/x^3-x^2 dx
Is this a partial fraction problem and if so am I doing it correctly?
I think I should break down the denominator into x^2(x-1) then I have A/x^2 + B/(x-1)
Then I get A= -3 and B = 1 so I figure it to be -3ln[x^2] +...
So on a different forum I go to someone said something about flipping a coin 1 million times, and that the probability of it landing on heads 800,000 times is small, but possible. I want to come of with some mindblowing way of telling them that no, it is not realistically possible.
So what is...
Hi,
Does anybody know the equations for the Lawson Klein bottle ? I am trying to construct it in a maths graphic application.
Just to be precise its the version of the Klein bottle that is composed of two Sudanese Mobius bands, also it may be that the application will only cope with...
Homework Statement
The lengths of the two perpendicular supporting rods are 80.0cm and 105.0 cm. The lengths of the two shorter sides are 50.0 cm and the lengths of the two longer sides are 85.0cm.
The supporting rods are drawn with a bolded line in the figure.
Homework Equations...
Hello physics enthusiasts! I was looking for resources, and stumbled upon these awesome forums.
I am looking for how to solve the helmholtz equation / wave equation on a figure 8 type shape. I wanted to find the resonant frequencies of a classical guitar.
Would this work? I am considering...
Homework Statement
Hi! I am trying to figure out how to create a small square after a proof of some theorem or definition (normally all mathematical proofs are finished by adding a small sguare at the end of it) how do I fix it? It is normally placed on the right side..
Oh I found it...
Homework Statement
the mother graph is y = 2 ^ x
Homework Equations
y=2 ^ x
The Attempt at a Solution
so i know the graph is flipped upsidedown and the whole graph is moved up 6 spots
so i can get y = -2 ^ x + 6
however the solutuion is y =-2 ^2x +6.
i can't seem to figure...
Homework Statement
The sample is placed 0.12 m beneath a Geiger counter.
The counter registers 2 counts per second. What is the activity of the sample?Homework Equations
The Attempt at a Solution
Just a guess. I am making up formulas here so please tell me if they're not even true.
(2...
Spring Calibration Data --> Need to figure out formula
I feel like every time I post a problem here, I end up figuring it out. So, thanks for that! haha
I have an Antenna system using two patch antennas, and I'm trying to determine the SNRin and SNRout of the system. I'm trying to determine the noise figure - is there a way to do it using scattering parameters? Thanks!
I'm trying to figure out how to prove this inequality:
I know it's true (by graphing), but what's an algebraic way to prove it?
1+\frac{1}{3x^2}< x \tan \frac{1}{x} < \frac{1}{\sqrt{1-\frac{2}{3x^2}}}
Thanks
I am confusing on how many decimal places or significant figures we should use. When i am doing some exercise, the answers provided vary from 1 decimal place to 2or3 decimal places. I wonder do we have a standard value of decimal place/significant figure that is generally accepted? Thanks.
Due in two hours, I can't figure it out! I spent 45 mins on this
Homework Statement
Give the isomers of C4H10O that are ethers
I am doing this on Mastering Chem and it isn't working
The Attempt at a Solution
[PLAIN]http://img121.imageshack.us/img121/9666/21624147.jpg
I...
Say I command the following simple script:
figure; plot([1:12],[1:12],[1:12],[4:15])'
1. How can I create a data cursor on one curve that automatically creates a data cursor at the same x-axis value for the other curve without having to manually create (Alt-Click, then line up) a second...
This will be slightly confusing but if you could try and hang in there with me
this is a breakdown of what the formula looks like most of which i will not be able to type out
V= velocity
T= time
M= mass
P( partial derivative of V over T + V * del operator * V)= negative del * P +...
Homework Statement
This is a general question... I can easily go from a matrix A to its eigenvalues and then eigenvectors but how would I go from the eigenvalues and eigenvectors to a feasible original matrix?
Any thoughts appreciated!
Hello I am new to this forum and was not sure where to post some thoughts I have. First of all let me compose why I even care to consider the question of consciousness. I want to first stress I do not have an education in Mathematics or physics. Also am not a good typer. Thank you ahead time for...
I just noticed an item in Ned Wright's "News of the Universe" about a new determination of the solar system's speed. It is roughly what we've been saying, around 370 km/s in the direction of constellation Leo, but this paper determines it with increased precision...
In Srednicki's QFT book on page 63, figure 9.11, the diagram in the middle of the second row is a Feynman diagram with four external lines, two vertices, one internal line and one loop placed on one external line. It has symmetry factor 4.
Does the symmetry facor stand for the 4 possibilities...
Hi, I have a bunch of images saved as .fig and I need to obtain the data in these files. I tried something as simple as
image1 = imread('figure1.fig');
but it does not recognize the format. If anyone could help me out that would be greatly appreciated, thanks!
I'm currently a freshman in college and I can't decide on a major. I absolutely love math and physics, as well as computer science, economics, biology, and chemistry. I got 44 credits from AP classes so I'm taking several higher level classes and I need to decide soon on my major. I'd say the...
Homework Statement
This question is a product of my own mind-
Refer Figure.
Suppose the value of P= 2Patm, can 2Patm fall to Patm before the liquid levels with the hole-level? In other words, can there be a liquid column above the hole?
Is this mathematical art? What kind of mathematical concepts can you see or illustrate with this figure or its elements?
I see patterns, geometry, sets & algorithms. what do you see?
[PLAIN]http://www.galasdeguatemala.com/data/media/159/DSCF4310.jpg
Mayan weavings from Guatemala
(image...
Homework Statement
IF a meter stick travels at the speed of light relative to an observer, how long does the meter stick appear to the observer? show you calculations.
Homework Equations
The Attempt at a Solution
Homework Statement
A 45.8 kg figure skater is spinning on the toes of her skates at 1.18 rpm. Her arms are outstretched as far as they will go. In this orientation, the skater can be modeled as a cylindrical torso (41.3 kg, 18.6 cm average diameter, 167.0 cm tall) plus two rod-like arms...
Homework Statement
Quick question, working on a lab
Just wondering how I could go about getting an average value for a series of figures with +- values.
For instance
1) 1.5 ± 0.02
2) 1.7 ± 0.84
3) 1.7 ± 0.08
The Attempt at a Solution
I tried enclosing the figures within...
I can't figure out why this happens with pure substances. My book is a piece of junk, perhaps someone could recommend a better book.
But why does water, for example, sublime below triple-point pressures?
If I'm below triple point pressure and I add energy to solid water, there should be a...
i am a former creationist that is just learning about science. I am not trying to disprove anything i just want to learn. i was hid away from science all my life growing up in a fundamentalist household and church.
anway i have learned about radiometric dating and various ways scientists can...
Homework Statement
First half of a trip is @ 10 MPH
Second half of a trip is @ 40 MPH
Avg velocity?
Homework Equations
(Vi+Vf)/2 = avg velocity...?The Attempt at a Solution
K, this is obviously a simple question but for some reason when I do it I get it wrong, and I'm 100% sure I'm right. But...
Homework Statement
I at a point in a derivation where I have the expression:
A = \frac{e^{mx} - e^{2ml - mx}}{1-e^{2ml}}
I have double checked my work leading up to this point, so i am confident my expression for 'A' is correct. I am supposed to reduce it to
A = e^{mx}
but I am...
My truck was rear ended. It has a steel and chrome bumper, the vehicle that hit it has a soft bumper, and was traveling at 15 miles per hour.
My bumper showed deformation by being bent in 1.27 cm and bent up 1.5 cm. The truck which was with the brakes on, also moved forward 6 inches. The soft...
Homework Statement
I am trying to attach a MATLAB figure in Latex
Homework Equations
The Attempt at a Solution
I saved the graph as .eps instead of .fig, then i opened ghostscript, and saw that the figure was too wide to fit on the page...
how can i mend this?
thank you
Homework Statement
The diagram below shows two vectors, A and B, and their angles relative to the coordinate axes as indicated.
DATA: alpha = 42.7 degrees,
beta = 60.0 degrees,
A = 6.70 cm.
The vector A - B is parallel to the -x axis (points due West). Calculate the y component of...
Homework Statement
"A steel cylinder of mass 2 kg contains 4.0 L of liquid water at 25 degrees centigrade at 200 kPa. Find the total mass and volume of the system."
Homework Equations
I know that water at 4 degrees centigrade is approximately 1000 kg/m^3. But how about when it is...
Homework Statement
i am trying to insert an eps figure into latex.
The problem is: when i open the file as a dvi file, it works fine. but when i try to convert into a pdf file by clicking the dvi-to-pdf icon, i notice that a small part of the picture is missing (cut off on the side)...i...
I don't know if anyone can help but I have a friend who wants to capture his waste steam and convert it to energy - that's the easy bit - the difficulty is how to work out how much energy he has in the first place. He is drying wood by heating a container to 160oC over a period of approx 40...
Hi,
So this is just part of my problem but its got me stumped for days and I can't ignore it since its popping up too often in my problems.
Homework Statement
For A sample of 140 bags of flour. The masses of x grams of the contents are summarized by \sum (x - 500) = -266 and \sum...
Homework Statement
Hi, I need to figure out the initial velocity if an object of 1400 kilograms is subjected to a friction coefficient (sliding friction) of 0.4587 for 75.6 metres, and its final velocity after being subjected to that friction is 23.05 metres per second. How do I go about this...
Hey everyone, I am trying to study some questions from the internet and i came across this one. i think this will help me heeps with my study but i just can't figure it out. can anyone els?
......The picture of the graph is in the attachment......
Using the graph above, find:
a) The...
In the image
[PLAIN]http://img411.imageshack.us/img411/6857/circle.png
If given the diameter of the circle, as well as the required distance for AD, is it possible to find out what BC must be? It seems like this should be possible given the information, but I can't seem to find out how...
Why is alchemy not real? Did anyone ever figure out how to change base metals into gold?
What is the closest anyone has ever come to this?
Assuming they haven't , why can't they do it?
How do i figure out the degrees of freedom of a certain object/gas
for example oxygen gas
i know it's 02
two oxygen molecules
-
the degrees of freedom is supposibly 5
but how do you figure that out?
thanks
Homework Statement
So the curves are:
y = \frac {x^{4}}{x^{2}+1}
and
y = \frac {1}{x^{2}+1}
The Attempt at a Solution
So first the limits of integration are:
\frac{x^{4}}{x^{2}+1} = \frac{1}{x^{2}+1}
(x^{2}+1)\frac{x^{4}}{x^{2}+1} = \frac{1}{x^{2}+1} (x^{2}+1)...
I am having trouble showing:
<4 3 0 | p_z^2 | 4 0 0 > = 0 and
<4 2 1 | x p_y | 3 1 0 > = 0
I know the usual selection rules for parity, spherical tensors (Wigner-Eckart for x,y,z) but I can't convert these two to anything I know.
You could also help by telling me how to convert these to...
Homework Statement
The problem is, "A footballer kicked a ball up at 50 degrees and it landed 20m away horizontaly", assuming vertical acceleration is -9.81ms-2 how would you find the time it was in the air and the max height reached.
How would you solve this?
Homework Equations...
hi, this is really frustrating because I've been working on this one integral for the last 2 1/2 horus and i can't figure out what I did wrong...
it's the Integral sin^2(x)/(3-2cos(x)) dx from x=0 to x=2pi
I tried the substitution z=e^(itheta) plugging in sin and cos as functions of z...