Vertical Definition and 997 Threads

two "vertical" stabilizers on the F-22 Raptor angled Why are the two "vertical" stabilizers on the F-22 Raptor angled sort of like a V-Tail as opposed to being completely vertical?

Mass on vertical spring with force applied. dy/dt = v dv/dt = 5sin(wt) - 16y I am trying to figure out the velocity of this object at any given time when w= 2 rad/ sec. (Would ideally like to have it for any w and any t) Did I do this correctly? (In calc 2, haven't had diff eq yet)...

I'm thinking of building a small vertical-axis wind turbine as a project over school vacation. By small I mean maybe three feet across and three or four feet high. I'm trying to come up with the best design. This type of turbine is good at generating torque, not RPM's, so I want to try to...

Homework Statement State one known vertical asymptote of the graph of 1/secx Homework Equations None The Attempt at a Solution 1/secx = cosx

Homework Statement A uniform stick of mass m and length L, initially upright on a frictionless horizontal surface, starts falling. The circle at the center of the stick marks the center of mass. Derive an expression for the speed of the center of mass as a function of y and θ if the stick falls...

Homework Statement Find the vertical and horizontal asymptotes. Homework Equations f(x) = earctan x The Attempt at a Solution Honestly, I am pretty stumped on this problem. I have graphed it on my calculator and messed around a bit, it seems that the horizontal asymptotes are around y =...

Homework Statement The three balls in the figure which have equal masses, are fired with equal speeds at the angles shown. Rank in order, from largest to smallest, their speeds as they cross the dashed horizontal line. (All three are fired with sufficient speed to reach the line.) Homework...

Homework Statement A bead of mass m slips without friction an a vertically oriented hoop of radius R. The hoop rotates around the z axis at a constant rate w. (question 4 if anyone wants to see the figure) http://phstudy.technion.ac.il/~wn114101/hw/wn2010_hw05.pdf" Homework Equations Write...

This is all the given info: On a foreign planet (g cannot equal 9.8m/s), a profectile is fired Maximum horizontal distance= 40.2 m and it reaches this distance at 25s Maximum vertical distance= 25 m and it reaches this distance at 12.5s There is no horizontal acceleration, and there is...

hi, i've read in a lot of places that the minimum speed fora body to "finish" a vertical circle is (rg)^0.5, but I've never understood why.. they assume the if the body passes the top, it will finish the whole circle.. but i can't actually see it... can someone explain/proof it to me? secondly...

[FONT="Comic Sans MS"]Sorry, I'm a newbie here and didn't know how to start a new thread, so I posted a question in another forum and then figured out how. I'm trying to redirect answers here. I'm arguing with a friend about how a half-Earth would appear from the Moon. Since we see the Moon...

Homework Statement A 0.12-kg block is suspended from a spring. When a small stone of mass 30 g is placed on the block, the spring stretches an additional 5 cm. With the stone on the block, the spring oscillates with an amplitude of 12 cm. What is the net force of the stone when it is at a point...

Why are Horizontal Axis Wind Turbines used more often than vertical axis when it looks like a vertical axis has more of an advantage? Please can you explain it simply?

I need to find the vertical sections and level curves of the function z=max(x,y^{2}) associated with the constants 1,2,3 and 4. I know that the function defined in this way basically means that f(x,y)=x if x\geqy^{2} or f(x,y)=y^{2} if x\precy^{2} But I don't know where to go from here...

Homework Statement A student gets a 3 kg mass to oscillate up and down on bottom of a light vertical spring by pulling her hand up and down on the top end of the spring. The spring is a real spring with a spring constant of 89 N/m and a damping constant of 0.5 N sec/m. Homework...

I need to find the vertical sections and level curves of the function z=max(x,y^2) associated with the constant 1,2,3,4 so that I can sketch them. I know given z=f(x,y) then the vertical sections of the function are z=f(c,y) where c is a constant and the level curves are c=f(x,y). I've been...

Homework Statement A rod of mass 4.5 kg and length 1.2 m hangs from a hinge as shown in the figure below. The end of the rod is then given a "kick" so that it is moving at a speed of 5 m/s. How high will the rod swing? Express your answer in terms of the angle the rod makes with the vertical...

Homework Statement A roller coaster moves through a vertical loop at a constant speed and suspends its passengers upside down. In what direction is the force that causes the coaster and its passengers to move in a circle? What provides this force? The Attempt at a Solution We started this...

Homework Statement A toy rocket is projected vertically upwards from rest and it rises with an acceleration of (9-5t)g m / s^2 for the first two seconds and, thereafter, freely against gravity. Find: the maximum speed and the maximum height. Homework Equations a = (9-5t)g for the first 2...

The speed of light in a gravitational field is predicted to vary between the horizontal and the vertical. This prediction comes from the Schwarzschild solution. The vertical speed c = cof The horizontal speed c = coSQRT(f) Where f is 1-2GM/rc2 Because f is smaller than 1, the vertical...

Homework Statement A small remote-control car with a mass of 1.51 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m. What is the magnitude of the normal force exerted on the car by the walls of the...

Homework Statement A 50.0kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. If the plane's speed at the lowest point of the circle is 95.0m/s, what should the minimum radius of the circle be in order for...

Homework Statement You throw a ball toward a wall with a speed of 32 m/s at an angle of 40.0° above the horizontal directly toward a wall. The wall is 22.0 m from the release point of the ball. (a) How far above the release point does the ball hit the wall? (b) What are the...

I'm working on a problem that analyzes vertical jump kinetics. I have a data file that has force plate data and corresponding time steps when a person jumped straight up and then landed on a force plate. I also have the vertical distance that the person jumped. I want to calculate: 1. The...

Homework Statement Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 4.10 kg steelhead trout to the tail of the 1.45 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 86.7 N. What is the tension of the rope connecting the steel trout...

A kicker must kick the football from a point 29.4m from the goal and clear a bar 3.00m above the ground. The ball leaves the ground with a speed of 20.0m/s at an angle of 53.0 degrees above the horizontal. a) By how much does the ball clear, or fall short of the cross bar? I used the...

Homework Statement A woman pushes a 20 kg lawnmower at a steady speed. She exerts a 87 N force in a direction of 32 (degrees) below the horizontal. The acceleration of gravity is 9.8 m/s^2. Find the magnitude of the vertical force this lawnmower exerts on the lawn. Answer in units of N...

Homework Statement You throw a ball toward a wall with a speed of 32 m/s at an angle of 40.0° above the horizontal directly toward a wall (Fig. 5-33). The wall is 22.0 m from the release point of the ball. (a) How far above the release point does the ball hit the wall? not sure what...

Hello, this was a topic we were discussing in class, but its not mandatory to solve and not for credit so hopefully it's ok to post here: So take a horizontal block of mass M on a spring with length L. If coordinate system is x is positive to the right and spring and block are to the right...

A spring with spring constant k = 40 N/m and unstretched length of L0 is attached to the ceiling. A block of mass m = 2 kg is hung gently on the end of the spring. a) How far does the spring stretch? dL = 0.49 Now the block is pulled down until the total amount the spring is stretched is...

I am doing physics homework and I came upon a problem that I had forgotten how to do, and i do not believe my answer is correct. I have tried to Google this but failed, can you please tell me if i have done this correct? the question: "4. Give the horizontal and vertical components of...

Homework Statement https://wug-s.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?cc/DuPage/phys2111/fall/homework/Ch-08-GPE-ME/mass_vertical_spring/7.gif A spring with spring constant k = 45 N/m and unstretched length of L0 is attached to the ceiling. A block of mass m = 1.5 kg is...

Homework Statement A ball rolls off a table with a horizontal velocity of 5 m/s. If it takes 0.6 seconds for it to reach the floor what is the vertical component of the ball's velocity just before it hits the floor? (use g= 10 m/s^2) The second part of the question is what is the...

Homework Statement i have a problem from an in class lab where i have to find the initial velocity of the ball. given is the horizontal and vertical displacement of the projectile. Dy(height)=100cm Dx(range)=200m 0(theta)= 15degrees. Find the initial velocity.Homework Equations not sure what...

what is the initial velocity when: Horizontal displacement= 1.51 Vertical displacement= -.273 angle launched= 36

Two blocks each of mass m = 3.50 kg are fastened to the top of an elevator as in the figure below.--- this is a horizontal version because I am on a comp. [top of elevator]--string1--[block #1 3.5kg]--string2--[block #2 3.5kg] (a) If the elevator accelerates upward at 1.6 m/s2, find the...

The height of a helicopter above the ground is given by h = 3.50t^3, where h is in meters and t is in seconds. After 1.85 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground? (Ans. in s.) (1) y-y0=v0t+1/2*gt^2 (2) v^2=v0^2+2g(y-y0)...

Honestly, I am soo confused...And this is the last problem left. If I get it wrong then I'm in trouble. Please help! I don't know what to do at all. A skier squats low and races down a(n) 11 degrees ski slope. During a 5 second interval, the skier accelerates at 2.3 m/s^2. (A) What is the...

Hello there, Could some one help me to find equations of motions of this problem attached to this message? thanks a lot Niko

Homework Statement A ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree at the speed of 9.28 m/s and the distance from the limb to the saddle is 3.84m. a) What must be the horizontal distance (m) between the saddle and the limb when the ranch...

Homework Statement http://www.grabup.com/uploads/7800261909D120091B14DB13F106.png That's an image I have made of the diagram we are given. T1 and T2 are tension 1 and [/i]tension 2[/i] respectively. I need to work out the length of those by: a). Maths b). Scale Drawing Homework Equations...

Homework Statement A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 8.7 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of θ = 67° when they move past the window as the...

Homework Statement A dolphin leaps out of the water at an angle of 32° above the horizontal. The horizontal component of the dolphin's velocity is 7.7 m/s. Find the magnitude of the vertical component of the velocity. Homework Equations Vy=V0y + a[SIZE="1"]yt The Attempt at a...

How do I find a vertical asymptote of a function by using limits? I can find the HA by taking the limit, but how do I get the VA? What if the denominator is a square root? FIGURED OUT: I need to evaluate the limit as x approaches a from the right and left.

Homework Statement If we wanted to calculate the minimum or critical velocity needed for the block to just be able to pass through the top of the circle without the rope sagging then we would start by letting the tension in the rope approaches zero...

Homework Statement What are the vertical and horizontal asymptotes for: 2x2/ SQRT(x4-81)? Homework Equations The Attempt at a Solution For one VA, I got x=3. Are there any more? I am troubled with this square root on the bottom.

Problem Find the limit (if it exists). If it does not, explain why. \lim_{x \rightarrow -3^{-}} \frac{x}{\sqrt{x^{2}-9}} (i.e. the limit from the left.) Definitions & theorems vertical asymptote definition: if f(x) approaches infinity (or negative infinity) as x approaches c from...

Homework Statement A mountain climber stands at the top of a 50m cliff that overhangs a calm pool. She throws two stones vertically download 1s apart and observe that the two stones reach the water simultaneously after a while. The first stone was thrown at an initial speed of 2m^{-1}.s...

Homework Statement Can a pendulum that swings in a vertical circle have a constant speed throughout its motion? How can I explain this phenomenon using angular velocity? Is there any instance when such case happen? Homework Equations 1/2mv2 = mgh velocity= radius X angular velocity...

Homework Statement A mass of 100g is attached to a string of length 1m.The system experiences vertical circular motion. (1)What is the minimum velocity to be given to the object at the lowest point of the path, in order to continue vertical circular motion? (2)What is the maximum tension...