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 feel silly for ask you for help on this simple center of mass problem but i got wrong answers...
Where is the center of mass of a uniform, L-shaped iron rod of sides X = 0.8 m and Y = 0.5 m, respectively? Take the corner to be at (x,y) = (0,0), with the X and Y sides along those axes...
1) A ball is thrown from a tall building at some angle with respect to the horizontal. By measuring the height of the building and the distance that the ball lands from the base of the buiding, one can uniquely determine the speed of the ball when it hits the ground.
I put this down as false...
Hi everyone-
I'm trying to figure out this puzzle that has to with numbers inside a 20x20 square.
After 1000 cycles, the square will always contain a 10x10 square in the upper left hand corner of all 0's, which will not change. My job is to find out what is happening to all the numbers...
i'm learning about oscilloscopes, and i don't understand
why this Lissajous figure can be go from a straight line to
a circle. Also, this sweep time/div control setting, i dont
understand why the wave cycles vary with this control setting.
Need Help -- Ampere's Law
http://www.webassign.net/pse/p30-21alt.gif
Figure P30.23 is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, which is surrounded by an outer conductor, which is surrounded by another rubber layer. In a particular...
My teacher takes off points for significant figure mistakes, but advises us to keep a few extra significant figures until the end. How would I do this problem:
Compute the velocity of the Sun around the Milky Way. Assume a circular orbit. Use the values given by Croswell for distance from...
Explain why a point on the rim of a tire has an acceleration when the tire is on a car that is moving at a constant linear velocity :cry: :smile: :mad: :rolleyes: :approve:
1) the given function is defined for x>0 except for x=2. Find the value to be assigned to f(2), if any, to guarantee that f is continuous at 2.
f( x ) = sin(pi x) / (x-2)
cant figure out how to change the equation so i can plug 2 in, i think I am loking right past it, tried multiplying...
i'm stuck trying to figure out this probabilities problem for my thermodynamics class. the question is:
consider an idealized drunk, restricted to walk in one dimension (eg. back and forward only). the drunk takes a step every second, and each pace is the same length. let us observe the drunk...
An 1800 kg car passes over a hump in a road that follows the arc of a circle of radius 42 m.
a. What force does the road exert on the car as the car passes the highest point of the hump if the car travels at 16 m/s?
b. What is the maximum speed the car can have as it passes this highest...
I am trying to figure out some properties of density of a set, but I keep confusing myself.
I know the definition of dense is: A set E of real numbers is said to be dense if every interval (a, b) contains a point of E. Could I rephrase the definition so that every interval (a, b) contains...
Help me figure this out please!
To make a long story short... I have a court case where I'm being sued for loaning a 4 wheeler to a friend which struck someone standing in the road. The plaintiff's lawyer said that the plaintiff was thrown 30 feet (which I know isn't right). I'm not the best...
Can you figure this out!?
Suppose that a cart is being moved by a certain net force. If the net force is doubled, by how much does the acceleration change? Why does this happen? For what reason?
Gyro Rotor Question. Can't figure it out! Need help tonight if possible!
I am taking a dynamics class which is reallly difficult. I've been able to solve all of the problems but this one. Can anyone help me by tonight?
A rotor mounted in bearings spins about a horizontal axis as shown...
sound wave questions my tutor couldn't even figure out
allright, well, i tried these problems, really thought i knew what i was doing, cause this section has been fairly easy, but i just can't get a couple of them! maybe you guys can help?
1 A stationary motion detector sends sound waves of...
I am having trouble with these two problems, I was wondering if anyone here could help me.
1. Given a sphere of radius 10 inches. Calculate the altitude of the inscribed right circular cylinder of maximum volume.
2. A man 6 feet tall walks away from a light 30 feet high at the rate of 3...
My Professor in my calculus class (1st year) left us with this question at the end of lecture today and told us to think about it. I am baffled as to how to solve it. Anyways, here is what he gave us.
\int_{x}^{xy} f(t) dt
This is independent of x.
If f(2) = 2, compute the value of...
I hope that I construct this problem correctly. I am trying to...um, help a friend fight a speeding ticket. Thanks in advance for any help.
The posted speed limit was 25 MPH. The officer was stopped at an intersection as I passed by him on the perpendicular and "estimated" that Iwas traveling...
I don't know how to solve this rigid solid problem
Let there be a rod hanging of a string fixed to a certain point. Why is not possible for both the string and the rod to be in the same direction all the time. (it is common sense that it's impossible but how can I prove it?)
I've tried to...
A sledge loaded with bricks has a total mass of 18kg and is pulled at a constant speed by the rope.The rope is inclined at 20 degrees above the horizontal, and the sledge moves a distance of 20m on a horizontal surface.The coefficent of kinetic friction between the sledge and surface is .500...
Okay, I have this very EASY question (or so it appears) but I don't know how to figure out the time in this problem:
a coin with a diameter of 2.4 cm is dropped on edge onto a horizontal surface. the coin starts out with an initial angular speed of 18 rad/s and rolls in a straight line...
For a charged particle the Velocity Vector is in the i direction and the magnetic field is in the -k direction, prove using Newton's Second Law that the trajectory of this charged particle must be circular. (Hint F=q(V x B) this is the magnetic Force equation.)
Ok ignore the first 2 questions as I've already done em.
its just the rest i cannot figure out. If anyone could just shed a little light on this problem it i can finally sleep.
Thanks in advanced
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http://www.tzivonim.com/~mypics/2.gif...
Need help on this problem please! I can't figure it out!
The problem is A 54.0 kg. skateboarder starts out with a speed of 1.90 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing...
Simple problems that I can't figure out! HELP!
Hello, first of all, thanks in advance for checking out my thread. below are a short list of some simple problems that should be easy to solve for those of you who frequent this forum. However, I can't seem to figure them out and it is really...
simple problems that I can't figure out! HELP!
Hello, first of all, thanks in advance for checking out my thread. below are a short list of some simple problems that should be easy to solve for those of you who frequent this forum. However, I can't seem to figure them out and it is really...
How do I figure velocity?!
What is the velocity of the mass as it breaks contact with the spring?
From part 1 I got:
A 1.118 kg block is on a horizontal surface with mu-k = 0.150, and is in contact with a lightweight spring with a spring constant of 715 N/m which is compressed. Upon release...
If you jump from a desk and land stiff-legged on a concrete floor,
the chance is good that you will break a leg. To see how this
happens, consider the average force stopping your body when you
drop from rest from a height of 1.00 m and stop in a much shorter...
I need to tell wether the water level rises, falls, is unchanged, or cat tell. The father and son are in a boat wearing lifejackets.
The son pops a helium filled balloon that he is holding by a string.
(Id say unchanged since the balloon is floating in the air right)
The fisherman fills a...
HELP! pulley problems, can't figure formula out...
ok, for physics here at uf, there are 2 problems in this homework i just can't figure out, and I am sure I am just being stupid, but can anyone help me? here they are...
In Figure 5-50, three ballot boxes are connected by cords, one of which...
Dr. Ray protects his computer system from those pesky university freshmen by incorporating a secret code that only he knows how to work out.
Two numbers appear on his screen, and he can't log in until he types in a third number, related to the first two.
However, certain freshman spies...
Tryin to figure out what the equation for this problem!
An economy consists of three industries, A, B, and C, each of which produces a single product. The interrelationship between the three industries is
Current...
Help me figure this one out!
For a certain commodity, the demand equation is given by D= -5p + 5=. At a price of $1, twelve units of the commodity are supplied. If the supply equation is linear and the market price is $4, find the supply equation.
Answer:
For this one I have come up with...
So, first day of school today, and I'm in honors chemistry. I got a packet with refernce tables etc. and a homework assignment designed just to get you to use the tables and be able to connect one thing they say with another. Anyway, one question is "How much heat is required to melt 1g of ice?"...
A particle moves in the x-y plane with constant acceleration. At time t = 0 s, the position vector for the particle is d = 2.2 m x + 8.2 m y. The acceleration is given by the vector a = 4.5 m/s2 x + 2.2 m/s2 y. The velocity vector at time t = 0 s is v = 3.3 m/s x - 4.3 m/s y. Find the magnitude...
Please bear with my verbosity on this one, and with the messy symbols.
The problem states that I am to fire a projectile from some distance d above the ground (ignoring air resistance) with initial velocity v0 and initial angle θ. I am to show that between R (the maximum horizontal...
I have one big headache that is connected to math. So the problem is about internet speed. Let's say it's 256_kbps. My internet provider says that the speed agrees with proportion 4:1 (my_country:abroad). Please help me to figure out my final speed in my country (in kbps) and abroad. There are...
hey I am trying to figure out all the isomers for C9H20...im getting kind of frusterated so if anyone can help me find them or just tell me how thatd be awesome! thanx! :smile:
I know that our current decimal system has a base ten.
My question is, how can i figure out fractions to decimals with different bases?
basically, i would like to know how to use different bases other than 10.
I'm stuck.
The problem is here: http://wps.prenhall.com/esm_wilson_physics_5/0,7194,229574-,00.html
Under Physlet problems, #12. Every time I think I find a way to do this, the answer isn't correct. It let's you check the answer, but I can't seem to find a way to go about it. Any help...
Hi all,
I've inserted a figure into a document I'm working on, but I can't seem to get the words to wrap around the figure. I have a large white spot on the left side of the page, that's just begging for some text. I've looked in the two guides I have and neither say anything about this can...
Hi everyone, I am new to these forums and thought this would be a good place to get some help.
I picked up a three dollar russian made math problem book at a local book sale. I am working on the questions it has in it and I came across the first problem on motion it has and I can't quite...
Ok, let's say you see a bright light in the night sky. How far away is it?
Well, it's bright; so it could either be so bright because:
1) it's so close to Earth
2) it's simply very bright
If a star is dim, how do we know if that is because it is far away or if it's simply dim by its...
I want to check my answers for this problem: Part c) below doesn't agree with the book. And even though part a) agrees, I'm not sure about my method.
I've attached a figure for reference.
For the attached figure, the switch is closed fo t<0, and steady-state conditions are established...
I can't figure out these questions...HELP!
1. A horizontal force of 150N is used to push a 40kg bag a distance of 6.00m on a rough horizontal surface. If the crate moves with constant velocity:
a. what is the work done by the force
b. what is the coefficient of kinetic friction
How do i...