Vertical Definition and 997 Threads

  1. QuarkCharmer

    How High Will a Failing Rocket Reach?

    Homework Statement A 7600 kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.35 m/s^2 and feels no appreciable air resistance. When it has reached a height of 570 m, its engines suddenly fail so that the only force acting on it is now gravity...
  2. A

    Catapult vertical displacement problem

    Homework Statement A catapult fires at an angle of 40.02 and has an initial velocity of 5.463. Find the vertical displacement at t=.38 seconds. I know the following from the problem and logic vo=5.463 t=.3824 g=9.8 angle=40.02 I calcuated the following voy=vosin40.02 voy=3.5133 Homework...
  3. B

    Find the vertical asymptotes of the graph of the function

    Homework Statement Find the vertical asymptotes of the graph of the function. (Use n as an arbitrary integer) \frac{tanx}{x} Homework Equations N/A The Attempt at a Solution I believe the answer is x=\frac{\pi(2n+1)}{2}. I would just like somebody to confirm or deny this. Thanks...
  4. G

    Physics projectile problem - finding vertical range using the horizontal range

    Homework Statement What is the maximum vertical height to which a baseball player can throw a ball if his maximum throwing range is 54 m? vertical: a=9.8 m/s/s, Vyo=0 m/s, d=?, t=? horizontal: d=54 m, a=0 m/s/s, Vxo=?, t=? Homework Equations d=Vo*t+.5*a*t^2 The Attempt at a...
  5. G

    Different initial vertical velocities on different planets

    Homework Statement Suppose that I am jumping on the Earth, and I weigh 130 lbs. I push off with an initial vertical velocity of 2 m/s, and reach my highest height at 4 m. If I were to jump on a different planet with an extra 130 lbs (earth weight) because of a space suit etc., would I have a...
  6. C

    How to Find Vertical Displacement Between Two Jumping Basketball Players?

    Homework Statement Two basketball players are essentially equal in all respects. (They are the same height, they jump with the same initial velocity, etc.) In particular, by jumping they can raise their centers of mass the same vertical distance, H (called their "vertical leap"). The first...
  7. B

    Projectile Height Calculation: Baseball Thrown at 30 Degrees

    Homework Statement A baseball is thrown with an initial velocity of 20 ms at an angle of 30 degrees with the horizontal. How high did it go if it was released and caught 2 meters from the ground? Homework Equations The Attempt at a Solution 0=Vi^2 + 2ad 0=(20Sin30)2 + 2 X...
  8. P

    Tension in string, vertical plane

    Homework Statement Keys with a combined mass of 0.100 kg are attached to a 0.25 m long string and swung in a circle in the vertical plane. What is the tension in the string at the bottom of the circle? Known: Mass = 0.100 kg Radius = 0.25 m Homework Equations Fc = mv^2/r...
  9. P

    Question for Aerodyamicist on Vertical Stabilizer Icing

    Can someone explain why a lot of jet and turbo-prop aircraft do not have anti-ice protection on the vertical stabilizer, particularly those aircraft with T-tails? Obviously, it is because the Vertical Stab on these aircraft are not prone to collecting ice, but my question is WHY is this so? Is...
  10. D

    Vertical motion Kinematics Confused as heck

    Frederick comes up with the following scheme to measure a building's height. A timing mechanism is set up which measures the time taken by an object dropped from the top of the building to fall the last 2.0 m before it hits the ground. The object is found to take 0.125 s to move the last 2.0 m...
  11. F

    A mass at the top of a vertical hoop. (Lagrangian Mechanics)

    Homework Statement A heavy particle is placed at the top of a vertical hoop. Calculate the reaction of the hoop on the particle by means of the Lagrange's undetermined multipliers and Lagrange's Equations. Find the height at which the particle falls of. Homework Equations \frac{d}{dt}...
  12. J

    Determining vertical or horizontal fuel atomized

    I need a little help understanding which method would be the best way to keep fuel atomized for the longest period of time. I have a CV carb (more specifically a Keihin CV 40) and I'm wanting to install a Dial A Jet. *If you'd like to learn more about the Dial A Jet, go here...
  13. H

    Why must vertical acceleration always be negative on projectile motion?

    y= y_0 + v_(y0)t - 1/2gt^2 why is it -1/2 gt^2? what if somebody was to throw ball downward? is that still negative velocity? wait, does negative in velocity mean direction?? or slowing down kind of confused while writing this question if it is direction why is it negative for...
  14. B

    How to calculate if a vertical beam is stable under a particular load?

    What all the parameters to be calculated to find a vertical standing beam subjected to axial loading stands without buckling or stands stable? My HW problem has a theoretical question, a vertical beam is fixed on both ends. Loaded on the top with axial load. Show that with an example...
  15. D

    Basic limits of rational functions: behavior near vertical asymptotes

    Homework Statement We are required to sketch a (reasonably accurate) picture of a rational function f(x) = P(x)/Q(x) with P, Q polynomials in x and Q nonzero. We know that the roots of Q(x) are, say, x1, x2, etc. and so f(x) is (typically) asymptotic to the vertical lines x = xk for each k...
  16. U

    Question about vertical oscillations and energy

    I have a few questions regarding vertical oscillations (not damped). Let's say you have a spring hanging from a ceiling with a mass attached to it. So, for example, if I had a mass attached to a spring and I pulled it down by 10 meters, if mg/k = 5 meters then the amplitude would be 5 meters...
  17. J

    Vertical motion and qudaratic equation questions

    [b]1. a cricket ball is thrown at 20 metres per second . how high will it be after 1 second? I will subtitute the values in -4.9x1^2 - 20-1 [b]2. any way the formula is -4.9t^2 - ut [b]3. I think the answer is -4.9-21 :confused: Sorry for hurry, it is due tomorrow
  18. K

    Bead on a vertical ring centripetal acceleration

    Homework Statement There is a vertical ring with a bead strung on it. The vertical ring spins at 4 revolutions per second, and the the bead moves up the ring at what angle from the bottom of the ring will the bead be at equilibrium? Is it possible for the bead to make it all the way up to the...
  19. B

    What speed must a car travel over a hill to exert no force on the road?

    Homework Statement A 915kg car goes over a hill. If the radius of this curve is 43m, how fast must the car travel so that it exerts no force on the road at the crest. Homework Equations Fc = mv^2/r Fg = mg The Attempt at a Solution Fc = Fn+Fg Fn=Fg Fg=mg =(915)(9.81)...
  20. M

    Why does this expression not have a vertical asymptote?

    Homework Statement Find the vertical asymptote, if there is one, of this rational function. \frac{\sqrt{16x^2 + 3x + 6} -5}{x-1} Homework Equations The Attempt at a Solution This was actually a Calculus problem, I had to find the limit at infinity. I was able to do that easily; an extra...
  21. E

    What is the time and velocity of a falling helicopter wheel?

    i got an assignment for physics and my class hasn't done a lot of vertical motion yet, it sounds like a pretty traight forward question but I am battling. A helicopter is rising vertically with a velocity of 14.7m/s when its wheel drops off at a height of 49m i) calculate the time for the...
  22. S

    Mass Dropped on Vertical Spring

    Homework Statement A mass, m, is dropped from a height, h, on an initially uncompressed spring of length L. (a) Determine the amount by which the spring is compressed before the mass comes to rest. (b) Determine the mass's maximum speed. Homework Equations U(e)=.5k*x^2, U(g)=mgh, KE=.5mv^2...
  23. G

    Sketch graphs showing vertical & horizontal asymptotes and relative extrema

    Homework Statement Sketch the graphs of the following function showing vertical and horizontal asymptotes and relative extrema: f(x) = (x2-1)/(x2-4) Homework Equations Limits, zeroes, derivatives The Attempt at a Solution I know that I have the majority of the answers right, the...
  24. J

    A method to improve the vertical accuracy of an oscilloscope?

    Hello we have a number of oscilloscopes with 1.5% vertical accuracy (DPO-4032) we would like to improve (reduce) this number, to improve the quality of our tests. someone has proposed using a DMM (Fluke 45) to "calibrate" the oscilloscope and impart the DMM's much better accuracy of...
  25. G

    Graphing Rational Functions with Vertical Asymptotes

    Homework Statement Sketch the graphs of f(x) = (x^3)/(x^2-1) showing vertical and horizontal asymptotes and relative extrema Homework Equations Zeroes, limits The Attempt at a Solution I've actually figured out the question; No horizontal asymptote, max at (-sqrt(3)...
  26. G

    Vertical Asymptotes and squaring

    Homework Statement Find the vertical asymptotes of: f(x) = (x^2-1)/(x^2-4) Homework Equations Limits, zeroes The Attempt at a Solution Sorry about the mess...not too sure how to type some of this ): lim (2^2-1)/(2^2-4) = 0+ x->2+ lim x->2- (2^2-1)/(2(-)^2-4) = 0+...
  27. R

    Closed orbits in hydrogen when exposed to vertical electric field

    Hi. I am trying to find the classical turning points in semi-parabolic coordinates for the hydrogen atom when an electric field is being applied to it in the y-axis. I am reading an article for those who are interested called Classical, semiclassical, and quantum dynamics in the lithium Stark...
  28. G

    Final vertical velocity? (kinematic formulas)

    Here is the problem. It consists of a. b. and c. As you can see I found A and B, but C is giving me trouble. My work is also attached. I am assuming that when the question says "with what speed do the supplies land in the latter case." that i am finding final velocity. and I have already...
  29. S

    Load on a journal bearing in a vertical shaft

    i have to design a journal bearing for a vertical motor shaft. what loads act on these bearings? since the shaft is axial, are they any loads that act on the bearing. here i am talking about journal/plain bearing, not the thrust bearing which supports the vertical load. what type of failure we...
  30. dkotschessaa

    Vertical Asymptote: Is f Defined at x=1?

    Homework Statement True False If the line x=1 is a vertical asymptote of y = f(x), then f is not defined at 1.Homework Equations none The Attempt at a Solution I originally believed this was true, but on finding it was false it sought a counter example: if for example f(x) = 1/x if x !=...
  31. M

    Contraction of the canonical symplectic form by vertical vectors

    The canonical symplectic form on T^*M is the exterior derivative of the tautological 1-form: \omega=d\alpha where \alpha_p(X):=p(d\pi(X)) is the tautological 1-form. Let Y \in T_pT^*M a vertical vector, that is d\pi(Y)=0. It's trivial to prove using canonical coordinates that for...
  32. C

    Why the plane of the rings is vertical to the rotation axis of Saturn?

    Why the plane of the rings is vertical to the rotation axis of Saturn? I don't think this is a coincidence, because the orbits of the 8 planets in our Solar System is roughly in a plane, and some galaxies are like a plate, so does the accretion plane of the black hole. But as we know...
  33. J

    Fluid Flow: Water Pipe with Vertical Pipes

    Homework Statement Consider a water pipe that tapers down from a diameter dA= 5.0 cm at end A to a diameter dB = 2.5 cm at end B. At each end a vertical pipe that is open to the air at the top is attached to the pipe as shown in the Figure. (Not to scale, the pipes are much taller than shown.)...
  34. M

    Simple Harmonic Motion - Vertical Spring

    Homework Statement A block with mass m =7 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.23 m. While at this equilibrium position, the mass is then given an initial push downward at v = 4.7 m/s. The block oscillates on the spring without...
  35. J

    Steady state Vertical diffusion equation

    Hallo everyone, I am trying to find the way to solve the vertical diffusion equation for a spicies X in the atmosphere for steady state conditions (dc/dt=0). The equation has the form, dJ/dz -P+S=0 where J =(vs*C(z)) + rho*kz*d/dz(C(z)/rho(z)) is the flux of spicies X at height z...
  36. S

    Solving Vertical Circular Motion Homework Problems

    Homework Statement 1. A ball is tied to a string then moved so that its trajectory is vertical circle. If the mass of the ball is 500 g, the speed is 2 m/s, and the length of string is 50 cm, find the tension when it is at the top of the trajectory 2. A mass m is tied to a string and moved so...
  37. A

    Vertical intercept of an Acceleration Force Graph

    Homework Statement What is the vertical intercept of an acceleration force graph mean? Homework Equations The Attempt at a Solution The mass of an object with no force applied? That's my guess. Any advice and tips appreciated.
  38. J

    Vertical Spring Oscillation Frequency

    Homework Statement A spring is standing upright on a table with its bottom end fastened to the table. A block is dropped from a height 2.8 cm above the top of the spring. The block sticks to the top end of the spring and then oscillates with an amplitude of 12 cm. What is the oscillation...
  39. R

    Solve Vertical Circles: Force, Velocity, Acceleration, Mass, Reaction

    Homework Statement F=Force, v=Velocity, a=acceleration m=mass (0.01kg) R=Normal Reaction to surface Hi, can anyone help, I keep getting the wrong answer on this question and it is really annoying me. Here is a picture of the diagram: "A Marble of mass 0.01kg is on top of a smooth...
  40. C

    A conducting rod slides down between two frictionless vertical copper tracks

    Homework Statement A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of 4.5 m/s perpendicular to a 0.56-T magnetic field. The resistance of the rod and tracks is negligible. The rod maintains electrical contact with the tracks at all times and...
  41. W

    Vertical displacement of electron

    Homework Statement An electron with a speed of 1.9 × 107 m/s moves horizontally into a region where a constant vertical force of 4.3 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the time it has moved 34 mm...
  42. I

    How Is Work Calculated When a Block Is Pushed Up a Wall?

    1. A 2.79 kg block is pushed 1.48 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of 60.8 with the horizontal. The acceleration of gravity is 9.8 m/s2 .If the coefficient of kinetic friction between the block and wall is 0.581, find the work...
  43. A

    Vertical SHM and Change in Mass

    Homework Statement A uniform beam is suspended horizontally by two identical vertical springs that are attached between the ceiling and each end of the beam. The beam has mass 225 kg, and a 175-kg sack of gravel sits on the middle of it. The beam is oscillating in SHM, with an amplitude of 40.0...
  44. I

    Power needed to push an object vertical at constant velocity

    Homework Statement Stuntman's Freefall, a ride at Six Flags Great Adventure in NewJersey, stands 39.6 meters high. Ignoring the force of friction, what is the minimum power rating of the motor that raises the 1.20×105kg ride from the ground to the top in 10.0 seconds at a constant velocity...
  45. D

    Shadow of vertical circle on wall?

    A ball is spun in a vertical circle on a string. A light is shining from the side of the circle so that a shadow of the balls motion is shown on a wall behind it. The shadow is simply a circle moving up and down in a straight line (I can't attach the image). The amplitude of the shadow is 0.5m...
  46. F

    Calculating Frequency of Vertical Oscillation for a Spring-Mass System

    Homework Statement A spring is suspended from a ceiling and has a block attached to its lower end. The block is held a distance y1 from the ceiling (at this point the spring is at its rest length) and released. The block oscillates up and down with its lowest point being 0.091 m below y1. Find...
  47. P

    Deflection and stress in a frame's vertical member

    Please refer to the diagram attached. I am trying to work out the peak stress and deflection of a vertical member in a simple steel frame. I know that the vertical member will be subjected to a buckling stress, but I'm unsure as to whether the moment about O caused by the cantilevered...
  48. R

    Type 1 Projectile with an initial vertical velocity

    A rude tourist throws a peach pit horizontally with a 7.0 m/s velocity out of an elevator cage. The ground is 17 m below. How long will it take for the pit to land if the elevator is moving upward at a constant 8.5 m/s velocity? d=Vot + 1/2at2 My attempt that continuously doesn't...
  49. R

    A mass attached to two horizontal springs, vertical motion

    Homework Statement A mass is connected between two identical springs with the same spring constant, k. The equilibrium length of each spring is L, but they are stretched to 2L when the mass is in equilibrium. Ignoring gravity, find the equations of motion and then angular frequency of...
  50. S

    Vertical circular motion in uniform circular motion

    Homework Statement A pilot flies an airplane in a vertical circular loop with a radius of R = 1200 m. The plane is gaining speed as the pilot makes a dive, and its speed is measured to be 150 m/s when the plane reaches the bottom of the circle. If the total acceleration of the plane at the...
Back
Top