Horizontal Definition and 960 Threads

Homework Statement A massless hoop is suspended horizontally and is free to rotate about a vertical axis through its center with a constant angular velocity (omega). Attached to the edge of the hoop is a simple pendulum that is restricted to oscillate in only the radial direction. find the...

Homework Statement Assume the ramp and block make the following coefficients of friction: (μs=0.9 μk=0.3) and the 2 kg mass is placed at rest on the ramp and a horizontal force F is also applied. http://img69.imageshack.us/img69/4097/filepq.jpg What is the biggest magnitude force F...

I need help with my hw, bad. I've been screwing off in my physics class for awhile and I can't get afterschool help because I have sports. I need to pick my grade up in this class to keep playing...so here I am. I need a good walkthrough badly, i don't know a whole lot with physics, but a decent...

I'm self-studying an introductory book on mathematical methods and models and came across the following problem: 1. A bead of mass m is threaded onto a frictionless horizontal wire. The bead is attached to a model spring of stiffness k and natural length l0, whose other end is fixed to a...

searching for equation for translational equilibrium for horizontal components of force

Hi, I'm trying to understand the fiber bundle formulation of gauge theory at the moment, and I'm stuck on the connection. Every reference I've found introduces the idea of a connection on a principle bundle as a kind of partitioning of the tangent space at all points in the total space into a...

Hi, I sincerely hope one of you could please help me with the equations in the following problem. Homework Statement A toy car is forced to move along a circular ring placed on a table with no friction. The friction coefficient between the ring and the car is given as μ. At t=0 the car...

There's no real question per say. I've been looking in books and on the internet i can't find anything. I don't know when to use the vertical and horizontal line test to test for injective functions and surjective. Let's say if I was to sketch the graph of x2+4x - 5 I would get a...

Homework Statement f(x)=(8-4x)e^x Homework Equations The Attempt at a Solution I know you can usually compare the top and bottom and determine that way but how can you do it when it's like this? I know the answer is 0 already i don't know how to get it though

Homework Statement Romeo is chucking pebbles gently up to Juliet's window, and he wants the pebbles to hit the window with a horizontal component of velocity. He is standing at the edge of a rose garden 8m below her window and 9m from the base of the wall. How fast are the pebbles going when...

Homework Statement see attachment Homework Equations not sure if these are applicable because i don't think its steady state anymore mass flow in=mass flow out sum of forces in x direction= rate of momentum in-rate of momentum out bernoulli's p+0.5ρ(v^2)= constant The Attempt at a...

Homework Statement http://imageshack.us/a/img594/4821/fileeq.jpg So, the problem is to find the minimum acceleration required to keep the block on the ramp, when the ramp is being pushed at an angle to the horizontal (so going diagonally) I know that the coefficient of static friction...

Hello, everyone! I'm studying Nakahara's book, Geometry, Topology and Physics and now studying the connection theory. I come across a problem. Please look at the two attachments. In the attachment , Nakahara said we could use the similar method in the attachment to get \tilde X, but why...

Motorcycle horizontal acceleration--front wheel rise The distance between the centers of the wheels of a motorcycle is 171 cm. The center of mass of the motorcycle, including the rider, is 95.0 cm above the ground and halfway between the wheels. Assume the mass of each wheel is small compared...

Homework Statement A man wants to push a cardboard box 60 kg along a floor by applying force F in a direction 40 degrees above horizontal. Coefficient of static friction between box and floor is .7. a) Determine F if box is on verge of moving. b) Based on part A, determine acceleration...

Homework Statement I need to find the center of gravity of a horizontal cylinder that has water in it, the level of water changes so I need to determine a relation between the diameter occupied by the water and the masses, those are my guesses. I solved the problem where i have the standing...

Homework Statement A 0.5 kg wooden block is placed on top of a 1.0kg block. The coefficient of static friction between the two blocks is 0.35. The coefficient of kinetic friction between the lower block and the level table is 0.2. What is the maximum horizontal force that can be applied to the...

For example, y = 7. Are there an infinite number of asymptotes at any y value that isn't 7? If so, how would I format this statement on my homework? *edit* oops sorry, I meant to post this in homework help

a pelican flying along a horizontal path... A pelican flying along a horizontal path drops a fish from a height of 5.4 m. The fish travels 8.0 m horizontally before it hits the watwe below. What was the pelican's initial speed? Well I'm guessing that y =-5.4m and x= 8.0 m...what do I...

Homework Statement A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N. Starting from rest, the sled attains a speed of 2.0 m/s in 8.0 m. Find the coefficient of kinetic friction between the runners of the sled and the snow. Homework...

Homework Statement At the height of H, from a plane with the speed of V, there is an object "thrown off". H = 10km = 10 000m V = 300m/s To be determined: - total distance from the plane to the falling point - S - the time the fall takes - T do not have to take aerial friction into...

Is there any decent way to quickly spot if I should divide a 2d figure defined by functions into horizontal or vertical strips when solving centre of mass problems? Or does it come down to experience and/or math-talent? Problems like the1 in this video is what I'm on about...

Homework Statement A 0.20 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. The string makes an angle of 25° with the horizontal. Determine the speed of the stone.Homework Equations V= √(Fr/m)The Attempt at a Solution find the vertical component, call it y, then say...

Homework Statement Classic cannon ball launched with an initial horizontal velocity from an elevated position. Initial hvelocity: v Final velocity (when hits the ground): 4v High of the cliff: 16m Find the initial velocity and the angle at which the ball strikes the ground. Homework Equations...

Consider a light flexible rod placed on a horizontle table with part of the rod (length say "x") hanging freely (ie without support of the table) see attachment for clarity A mass is also hung from the rod t one end. Are there any equations that relate the Period T of the end of the rod to...

Homework Statement A projectile is fired with velocity v0 and passes through two points, both a distance h above the horizontal. The angle of the barrel of the gun is adjusted for the maximum range, find the horizontal separation of the two points. Homework Equations Max range for projectile...

Homework Statement I need to find the horizontal vectors and vertical vectors at launch, maximum height and at final catch of a projectile. I know that the distance between point A and point B is 5 and the total time is 1. Homework Equations How can I also find the maximum height and the...

Imagine you are spinning a weight at the end of a string horizontally. As one increases the speed with which the weight is being spinned, the motion becomes more and more horizontal. I understand this occurs because the centripetal force (tension of the string) is increasing but at the same time...

A 100 N box is being pushed with a horizontal force F at 30 degrees on a frictionless ramp. Determine F and N (normal force). I got about 57.74 and about 115 for the second part (I don't know if it is right) Fcos(theta) -mgsin(theta)=0 for part A N-Fsin(theta)-mgcos(theta)=0 for...

8. A setup similar to the one shown in the figure below is often used in hospitals to support and apply a traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. F = mg F = (8.00)(9.81) F = 78.48 F = 78.5 N Is that all I had to do? It...

Im writing a program to determine the horizontal distance of a ball but getting this error: Y(t)=Y0+VY0*t+(1/2)*g*t^2 1 Error: Unclassifiable statement at (1) Distance=(X(t))^2+(Y(t))^2 1 Error: Unclassifiable error at (1) My code is as follows: PROGRAM...

Homework Statement A car is parked near a cliff overlooking the ocean on an incline that makes an angle of 14 with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline and has a velocity 5 m/s...

Homework Statement A block with a mass of m is initially moving up the incline and is increasing speed with an acceleration of a. The applied force F is horizontal. The coefficients of friction between between the block and incline are μs=S and μk=K. The angle of the incline is θ. What is the...

Homework Statement A stone is thrown horizontally from a cliff 25 m high and lands on the ground 22 m from the foot of the cliff. What is the horizontal acceleration on the stone? Homework Equations a = Δv/Δt = (vfinal - vinitial) / (tfinal - tinitial) The Attempt at a Solution...

The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 above the horizontal, some of the tiny critters have reached a maximum height of 58.7 above the level ground. A)What was the takeoff speed for such a leap? I got 4.00 m/s which was...

A rookie quarterback throws a football with an initial upward velocity component of 16.5 and a horizontal velocity component of 18.3 . Ignore air resistance. A)How much time is required for the football to reach the highest point of the trajectory? I got 1.68s which is correct B) How...

Hi suppose i had a ball on string and started to rotate it in a circle around my hand. When i increase the speed of the ball it becomes more and more horizontal. The only forces i can think of at play is centripetal and centrifugal forces and the force exerted by my hand and gravity. Is somehow...

Homework Statement Homework Equations None The Attempt at a Solution I was able to find a vertical asymptote at x=-3/8 by setting the denominator to 0 and using the quadratic formula to find the roots. However, I am unsure of how to find the horizontal asymptotes, and I am not...

Homework Statement A basketball player throws a ball at an angle of 30º above the horizontal. If the ball in has an initial velocity of 29.4 m/s, how far does it travel? Homework Equations Vyf^2 = Vyi^2 + 2(Ay)(Dy) solve for Dy and get [Vyf^2 - (Vyi^2)] / (2(Ay)) = Dy The Attempt at a...

I am a physicist trying to understand the notion of holonomy in principal bundles. I am reading about the horizontal lift of a curve in the base manifold of a principal bundle (or just fiber bundle) to the total space and would like to relate it to the "classic" parallel transport one comes...

Homework Statement Find the horizontal asymptote Homework Equations The Attempt at a Solution There are two ways I did this problem. One way seems to be a coincidence and the other the "proper way" 1. I used long division, and got 2+(9x-3)/(x^2-2x) 2 seems to be the horizontal asymptote...

Homework Statement A particle is projected with a speed of 98 m s−1 at an angle A to the horizontal. The range of the particle is 940·8 m. Find (i) the two values of A The Attempt at a Solution U = 98cosAi + 98sinAj i direction s = ut 940.8 = 98cosAt j direction s = ut...

Hey everyone, I cannot seem to figure this out and I'm having a hard time finding any guides online for this stuff. All I can find are calculators. I was wondering if it would be possible to calculate my Geographic Coordinates on Earth if I had the Horizontal and Celestial coordinates of a...

Homework Statement https://dl.dropbox.com/u/64325990/math.PNG The Attempt at a Solution So what I did was set up an system of equations such that the sum of the horizontal forces = 0 and the sum of the vertical forces = 0. I ended up solving for the tension in the rope BC and then found...

Parallax is a way of measuring the distance of one object to another. By taking the distance of an already known object, say the Sun, and drawing a line to the object. Then drawing another line between you and the object in question. The angle you get is the Horizontal Parallax angle...

Homework Statement A door, essentially a uniform rectangle of height 2.00 m, width 0.87 m, and weight 130.0 N, is supported at one edge by two hinges, one 35.1 cm above the bottom of the door and one 164.9 cm above the bottom of the door. Calculate the horizontal components of the forces on...

Homework Statement I need to find the horizontal velocity of an object on a ramp where the first height is 5.0m and the second height is 3.0m? I also need to find the time it takes to fall from the ramp, and the distance it falls away from the ramp. I am only given the two heights, an initial...

Does anyone have any good introduction to theories of the quark and lepton mass matrices? Theories like textures and horizontal symmetry. My understanding of research into textures is that it often involves trying to make zero as many entries as possible in the mass matrices. Is that a fair...

Hi everyone. I need to create a mechanism involving a 12" diameter horizontal tire, spinning at 3000RPM, with 2kg mass. The wheel will be attached to a spinning shaft. The only thing, I need to support the wheel from the bottom using flat bearings of some sort, so it can spin freely...

Is there Gravitational Potential Energy on a horizontal surface? Example from Position 1 - 2