Horizontal Definition and 960 Threads

[b]1. The problem statement, all variables and given/known da A ball is shot from the ground into the air. At a height of 9.7 m, the velocity is observed to be v = (7.4)i + (5.1)j in meters per second (i horizontal, j upward). Homework Equations What will be the total horizontal distance...

Homework Statement a mountain climber plans to jump from A to B over a crevasse. Determine the smallest value of the climbers initial velocity Vo and the corresponding value of the angle alpha so he lands at B Homework Equations A to B is 1.8m horizontal distance and B is lower than A...

Zero Launch Angle Lab We used a spring loaded gun and shot a ball out of it. Here's the data: three trials: 1.78 seconds 1.34 seconds 1.39 seconds the distance traveled was the same for each trial: 2.98 meters the height is 1.04 m FIND: 1. percent error on time. 2...

Find the x-coordinate of all points on the curve y = sin(2x) + 2 sin(x) at which the tangent line is horizontal. Consider the domain x = [0,2π). f'(x)=2cos2x+2cosx

Question: Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x))2 at which the tangent line is horizontal. Consider the domain x = [0,2π). f'(x)=2cos x+2sinxcosx...i think No idea where to go after this...

Homework Statement Plane X=0 has a uniform charge density, \rhos while plane X=a has -\rhos. Determine the electric field intensity in region X<0. Homework Equations E=\frac{Q}{4\Pi\epsilon0R2}aR The Attempt at a Solution I already know the answer to this question. What I'm...

Homework Statement A 5.86 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F = 10.00 N at an angle = 35.0° above the horizontal (x-axis). What is the speed of the block 3.70 seconds after it starts moving? Homework Equations Fcos() - ma = 0...

Homework Statement A ball is thrown vertically up from y=0 at time t=0 with vinitial=v0j. Show that the time it takes for the ball to reach the ground is twice the time it takes to reach its maximum height. Homework Equations h=(vi2sinthetai)/2g R=(vi2sin2thetai)/g The Attempt at...

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Homework Statement An 80kg person is preparing to dive into a pool. The diving board is a uniform horizontal beam that is hinged to the ground at point A and supported by a frictionless roller at D. B is the point directly under the center of gravity of the person. The distance between A to B...

i am now reading the PRL paper by simon on berry phase under adiabatic approximation, the wave function evolves as \langle \psi | d/dt | \psi \rangle=0. how to relate this equation to the connection on a fiber bundle? how to understand that the wave function is parallel transported?

suppose we have a principle fiber bundle P at a point p \in P we have the decomposition T_pP=V_pP + H_pP it is said that the vertical subspace V_pP is uniquely defined while H_pP is not i cannot understand this point the complement to a unique subspace is surely unique, i think. it is a...

1.A superhero flies 340 m from the top of a tall building at an angle of 22 ◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Answer in units of m. What is the vertical component of the super- hero’s displacement? Answer in units of m. 2...

Hello, I have been trying to set up a free body diagram for a power screw in a horizontal application. Every example I find they are using a power screw to lift or lower a load not move it left to right. I have attached the example from the textbook, along with my work so far...

Suppose a mass m suspended from a string of length l is undergoing uniform circular motion in a horizontal plane, with angular velocity ω. Calculate the centripetal acceleration a. If T is the tension in the string, and θ the angle the string makes with the vertical, then the vertical and...

A block of mass 4.0kg rests on a horizontal surface. What horizontal force is required to accelerate the block at 5.0m/s2 if the coefficient of kinetic friction is 0.25?

Homework Statement Let's say I had this object that someone was dragging at an angle across a horizontal plane. I am only given the angle to the horizontal, the mass of the object, and the coefficient of kinetic friction between the object and the surface. How do I find the applied force...

Homework Statement Find the horizontal asymptote(if there is one) using the rule for determining the horizontal asymptote of a rational function for (x^2+x-12)/ (x^2 -4)Homework Equations The Attempt at a Solution the degree of the numerator and denominator are both 2. Y=(An)/(Bn) Y=1/1 Y=1...

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I am doing an investigation on circular motion and have chosen to study the relationship between mass and its circular horizontal velocity Can anyone tell me what the actual relationship between the 2 variables is so that i have a good reference point. Other websites do not seem to offer a...

Homework Statement If a mass of 0.3 kg is attached to a horizontal spring system with a spring constant of 32 N/m^2 is stretched 0.2 m from its relaxed length, what is the maximum speed the mass will attain when released from this position? The Attempt at a Solution i thought all...

Homework Statement Consider a 2.5kg mass oscillating at the end of a spring, with the frequency of 1.0Hz. The motion of the mass extends through 0.04m. Homework Equations Determine the spring constant- The Attempt at a Solution I can't find the right equation to set up this...

I need to figure out how far an object has traveled at a given time. For example purposes the object will be thrown with a velocity of 30 m/s and at an angle of 30 degrees. I've figured out the distance/peak height/peak time/time of flight but I don't quite understand how to figure out the...

Homework Statement I am having trouble with calculating the required pump pressure in a horizontal water pipe, 3Km long. i know that the flowrate is 600Kg/s, average velocity 5.6m/s, cross-sectional area of pipe is 0.107143m^2 and losses due to friction average 0.002 per meter Homework...

Homework Statement Water (η = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0121 m3/s. As the figure below shows, there are two vertical tubes that project from the pipe. Assume that H = 0.0424 m and L = 0.679 m. Homework Equations No idea how to...

Hello All, Again, a funny question is raised: From the following site, I can determine the spring constant K for a compression spring at vertical axis. http://www.roymech.co.uk/Useful_Tables/Springs/Springs_helical.html However, I wonder is there any equation to find the spring constant...

Homework Statement Write an equation of each horizontal tangent line to the curve. Homework Equations y = 2y^3 + 6x^2y - 12x + 6y = 1 y' = (4x - 2xy) / x^2 + y^2 + 1) The Attempt at a Solution Well, horizontal tangent line means the derivative equals zero. Thus, 4x - 2xy = 0...

Find which value of x...horizontal Tangent Line Homework Statement What is given is F(x)= -4/(x-3)(x+4) and the problem asks for to find the value of x where f(x) has a horizontal tangent line.Homework Equations I read somewhere else on these forms that using the quotient rule is the key, and...

Homework Statement A 5kg sphere is connected to a thin massless but rigid rod of length L=1.3 m to form a simple pendulum. The rod is connected to a nearby vertical wall by a spring with a spring constant k= 75N/m, connected to it at a distance h=1.1 m below the pivot point of the pendulum...

A rock is thrown off a 100.0m cliff upward at an angle of 20o to the horizontal. It has an initial velocity of 15ms-1 and strikes the rocks below. Find how far away the rock is from the base of the cliff. I calculated total time of flight (projectile parabola + 100m vertical descent)...

When the power of the leading coefficient of the numerator of a rational function is a lot greater than the power of the leading coefficient of the denominator , ie f(x)=\frac{x^3+1}{x-1} The horizontal asymtote is y=x^2 according to the book . Is that true ? Is there any proof for this ...

Homework Statement A projectile is fired horzontally from a height of 1.5 m with a velocity of 100 m/s [E]. Ignoring any effects of friction... a) How much time will elapse between the projectile being fired and hitting the ground? b) What will be the horizontal distance from the point...

Homework Statement Find the points on the lemniscate: 2( x^2 + y^2 )^2 = 25( x^2 - y^2 ) where the tangent is horizontal Homework Equations Horizontal tangent: y' = 0 The Attempt at a Solution I got the correct gradient of y' = [ 50x - 8x^3 - 8y^2 ] / [ (8x^2)y + 50y + 8y^3 ]...

Homework Statement A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.80 m/s at an angle of 15.0° below the horizontal. It strikes the ground 6.00 s later. (a) How far horizontally from the base of the building does the ball strike the...

I have just studied a problem regarding a yoyo being pulled along a horzontal plane and where the task is to find which way the frictionforce from the ground on the yoyo is acting. I have seen the solution to it, but I find it confusing and would therefore like to ask some questions about it...

Homework Statement A Physics student wishes to measure the maximum horizontal acceleration of an aircraft as it accelerates down the runway. To do this the student measures the angle that a weight on a string is deflected from the vertical direction when the plane accelerates (see diagram)...

Homework Statement I have been told to work out the Horizontal Angle when given the Horizontal reading of face left and face right at different sights. For example: Face Left---------Face Right A - 26 12 48--------206 12 59 C - 172 23 08--------352 23 17 I am unsure how to work out the...

Help me understand exactly what is going on here. I'll put up an attempt at my solution: Find the tangent lines at the pole r = sin5o, [0,pi] (note: o represents theta) Equation: dy/dx = [f'(o)sino + f(o)coso]/[f'(o)coso - f(o)sino] f(o) = sin5o f'(o) = 5cos5o plugging everything...

Homework Statement A block is pushed up a frictionless incline by an applied horizontal force as shown. The acceleration of gravity is 9.8 m/s2 . What is the magnitude of the resulting acceleration of the block? Answer in units of m/s^2. Homework Equations...

Homework Statement Consider an object that is coasting horizontally (positive x direction) subject to a drag force f = -bv - cv^2 . Write down Newton's second law for this object and solve for v by separating variables. Sketc the behaviour of v as a function of t. Explain the time dependence...

Homework Statement if a questions states that the angle of 66 degrees is below the horizontal is that the angle I put into the equation Homework Equations The Attempt at a Solution

Homework Statement A rifle is used to fire two bullets. The first shot is at an angle of 60° above the horizontal and the second at an angle of 45° above the horizontal. The speed of EACH bullet as it leaves the rifle is 200ms^1. For EACH bullet calculate the horizontal range and the...

Homework Statement If it takes a horizontal force of 300N to push a stalled automobile along a level road at a constant speed, how much qwork must you do to push this automobile a distance of 5.0m? Homework Equations W = F x \Deltax The Attempt at a Solution I used the...

I'm working on a problem in which a block sits on an inclined plane of angle @ above the horizontal. Assuming there is no friction, the block will slide down the plane with a force of mg*sin(@). The trouble I'm having is figuring out the horizontal and vertical components of that force...

a cannon located 60m from the base of a vertical 25m tall cliff, shoots a 15kg shall at 43 degrees above the horizontal toward the cliff (a) what must the minimum muzzle velocity be for the shell to clear the top of the cliff? (b) the ground at the top of the cliff is level, with a constant...

Homework Statement A 2.7 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 17.3 N. Find the speed of the block after it has moved 4 m. Answer in units of m/s. Homework Equations a=Fnet/mass The Attempt at...

How can we find the horizontal force required to move an object with the coefficient of static friction and the mass?? I just need a formula please, thankyou

I am working on a problem involving heat transfer from a horizontal pipe in air. I am having trouble with it and not getting the solution I expect, and I think it is because of the convection component of the heat transfer. The general formula I am following for convection from a horizontal pipe...

Spaghettification outside of a BH rips apart objects in vertical direction, but compresses them in horizontal. Inside the BH, tidal forces rips objects apart in ALL directions - at least I was thinking so. But recently I read: http://arxiv1.library.cornell.edu/abs/0903.4717 The edge of...

Homework Statement Two very large horizontal sheets are 4.25 cm apart and carry equal but opposite uniform surface charge densities of magnitude \sigma. You want to use these sheets to hold stationary in the region between them an oil droplet of mass 364 \mug that carries an excess of five...