Horizontal Definition and 960 Threads

[SOLVED] Horizontal ProjectileMotion Homework Statement Divers jump off a cliff, at a height of 35m above sealevel. To land safely, they aim for 5m from the base of the cliff. What push off speed is neccesary? Sy= -35m Sx= 5 ay= -9.8m/s/s Vi = ? Homework Equations Not sure how to...

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 Use completing the square method to rewrite the equation of the parabola y^2 – 4y – 44 = 16x in the form (y-y0)^2 = 4A(x-x0) Hence find: a) the coordinates of the vertex b) the coordinates of the focus c) the equation of the line that passes through the focus...

A Major league pitcher can throw a ball in excess of 41.3m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0m away from the point of release? So Ay=-9.8 X=17m t=? Vox=0 V=41.3 y=(Vy^2-Voy^2)2g I thoguht i would use this...

Homework Statement "Match functions and their horizontal asymptotes." Homework Equations lim f(x) x-> + infinity lim f(x) x-> - infinity The Attempt at a Solution http://img198.imageshack.us/img198/7678/45328107.jpg im just stuck at this... I am sure that everything is...

Homework Statement the question says, find the Horizontal Asymptotes of the fallowing: f(x) = (cot^-1) (x^2 - x^4) f(x) = (cot^-1)(x) The Attempt at a Solution do i convert cot to it's components? i have no idea, please help me. i appreciate your time.

My question is if I actually did the said problem correctly and if there is perhaps an easier way of coming across an answer. Thanks! Homework Statement There are two blocks present (A and B) A is connected to B via a rope and the applied force is affecting B (to the right). Find the...

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...

a stealth bomber on a training mission drops one of its bombs from a height of 3500m during level flight. The bomb travels a horizontal distance of 1.25 km. What was the plane's horizontal speed? a brick is thrown upward from the top of a building at an angle of 25 degrees to the...

Homework Statement Romeo is chucking pebbles as gently as he can up to Juliet's window. That is, he wants the pebbles to hit the wendow with the least possible speed. He is standing at the edge of a rose garden at Dv = 7.90 m below her window and at Dh = 8.50 m from the base of the wall...

A 500m high volcano eject rocks at a speed 30 m/s.What is max horizontal distance reached by the rock?

Ok, so in the red box it says that the tension is obtained from the horizontal dimension. This seems very wrong to me. Could someone explain this to me? Isn't there tension in the vertical dimension? Homework Statement http://img27.imageshack.us/img27/9276/inclineplanesolution.jpg

Okay, so we did an experiment in physics class where we launched a projectile from Point A (on the floor). The projectile obviously traveled in a parabolic motion and ended at Point B (on the floor again, so no difference in launching and landing heights). We measured the distance from Point...

Homework Statement Two blocks connected by a rope of negligible mass are being dragged by a horizontal force (Fig. P5.43). Suppose F = 68.0 N, m1 = 12.0 kg, m2 = 18.0 kg, and the coefficient of kinetic friction between each block and the surface is 0.100. (a) Draw a free-body diagram for...

Homework Statement Could anyone help me with these vector problems? 1. At the top of its flight, an arrow has a horizontal velocity of 35ms-1. Two seconds later its velocity is 40ms-1 at an angle of 29 degrees below the horizontal. After a further 2 seconds, it is moving at 53ms-1 at 49...

Homework Statement Find the horizontal asymptote to the graph: f(x) = 2x2/(x4-81)1/2 Homework Equations How do I factor the bottom? Because for, the HA, I compare the coefficients.

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.

Homework Statement I am asked to add two horizontal vectors graphically. The result being the Cvector: Cvector= Avector + 2*Bvector Homework Equations Avector has a length of 4 in the east direction. Bvector length 1 in the west director. 2*Bvector= length 2 The Attempt at a...

Homework Statement A couch cushion of mass m is released from rest at the top of a building having height h. A wind blowing along the side of the building exerts a constant horizontal force of magnitude F on the cushion as it drops as shown in the figure. The air exerts no vertical force...

Hi, 20m straight length horizontal pipe (60 mm internal diameter), steam flows at rate 0.5 kg/s, at midpoint there is a valve in the line. inlet pressure to this section of line is 5 bar (gauge), pressure at end of line is 3 bar (gauge). mass quality of steam is 0.8 and 2 phase flow occurs in...

Homework Statement A ball is thrown eastward across level ground. A wind blows horizontally to the east, and assume that the effect of the wind is to provide a constant force to the east, equal in magnitude to the weight of the ball. At what angle theta (to the horizxontal) should the...

Homework Statement A 104 g stone is whirled in a horizontal circle on the end of an 83 cm long string. The stone takes 1.2 s to make each complete revolution. Determine the angle that the string makes with the horizontal. Homework Equations f=ma v=(2*pi*r)/T Centripetal acceleration=V^2/rThe...

Homework Statement If a projectile is fired from the origin of the coordinate system with an initial velocity v_0 and in a direction making an angle \alpha with the horizontal, calculate the time required for the projectile to cross a line passing through the origin and making an angle...

Homework Statement a mass (m1) on a smooth horizontal surface, connected by a thin cord that passes over a pulley to a second block (m2), which hangs vertically. If the acceleration is .098 m/s^2 and m1 is 1.0 kg how much must m1 must be to keep it at this acceleration Homework...

Homework Statement Two blocks of masses 2kg (a) and 3kg (b) rest on a smooth horizontal surface and are connected by a taut string of negligible mass. A force of 10 N is applied to the 3kg mass as shown in figure (below). Calculate the tension in the string between them. The answer is 4N...

I'm trying to solve the following problem using a MATLAB script but I keep getting an error: Show on the same axes the maximum height and horizontal distance traveled for an object thrown at a speed of 10ms-1 at an angle ranging from 0 to π/2. Equation for distance & height are: D= v2/g...

For the life of me I cannot figure out this problem: give an example of a function that has two horizontal asymptotes and three vertical asymptotes. Any help on this topic would be greatly appreciated.

I'm a calc newb, and I am a little stumped here. Thanks for your help. How do you do this? http://www.webassign.net/www29/symImages/0/8/103b04681b693242466ef17cefccc1.gif

Homework Statement A mass Z is suspended by a vertical rope attached to the roof, and a second rope attached horizontally to a wall. what is the tension in each rope if Z is hanging straight down? What are the rope tensions? Suppose Z has a mass of 800kg. what is the tension in the pair of...

Homework Statement An airplane flies through a horizontal curve at a speed of 250km/h (69.44m/s). Radius=0.7km or 700m Find the load of the pilot on the seat if her mass is 67kg. Homework Equations centripetal acceleration=v^2/r and then the solution times the mass of the pilot, but...

Homework Statement A shopper pushes a 7.5 kg shopping cart up a 13 degree incline. Find the magnitude of the horizontal force needed to give the cart an acceleation of 1.41 m/s^2. Homework Equations F = m * a The Attempt at a Solution I am not sure how to set up the F(x) and...

Homework Statement A 50 gram mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.2*sin( 3.1415*t ) where y is measured in meters and t in seconds (a) What is the spring constant in N/m ? (b) What is the total Mechanical Energy in...

The equation describing the horizontal range of a projectile is R = \frac{v_0^2}{g} \sin{2\theta} The previous equation states that the projectile wouldn't travel any distance if launched at 0 degrees. Further, the range of a projectile decreases from 45 to 0 degrees, but it seems...

Homework Statement A block of mass M_1 rests on a block of mass M_2 which lies on a frictionless table. The coefficient of friction between the blocks is \mu . What is the maximum horizontal force which can be applied to the lower ( M_2 ) block for the blocks to accelerate without...

Homework Statement The thin uniform rod in the figure below has length 2.5 m and can pivot about a horizontal, frictionless pin through one end. It is released from rest at angle θ = 40° above the horizontal. Use the principle of conservation of energy to determine the angular speed of the rod...

Homework Statement A railroad hopper car has a mass of 30000 kg when empty and contains 50000 kg of coal. As it coasts along the track at 5 m/s the hopper opens and steadily releases all the coal onto a platform below the rails over a period of 4 s. What is the horizontal impulse delivered to...

Homework Statement A soccer player kicks a rock horizontally off a cliff 40m high into a pool of water. If the player hears the sound 3 seconds later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s. Homework Equations g=9.8 The Attempt at...

Homework Statement A ball at the end of a string of length 0.75 m rotates at a constant speed in a horizontal circle. It make 3 rev/s. What is the period of the ball's motion? What is the ball's angular velocity? Homework Equations w = delta theta/delta t theta = 2*pi*r/r =...

Homework Statement Interactive Solution 4.11 offers help in modeling this problem. Two forces, vector F 1 and vector F 2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 30.5 N and F2 = 47.5 N. What is the horizontal acceleration (magnitude and direction)...

Homework Statement The figure shows two objects of masses m(1) and m(2). The horizontal surface allows for frictionless motion. The string ties to the two objects is massless and passes over a massless pulley that rotates without friction. If m(1)=5.63 kg and m(2)=1.57 kg, what is the...

Is there such thing? I know that PE = (1/2)kx^2. Does PE work in horizontal plane. I don't get the concept So like a person is spinning the mass.

Homework Statement In the figure below d = 2.6 cm. What is the electric field at the position indicated by the dot in the figure? Homework Equations E = charge/4*pi*epsilon_0*distance^2 The figure is on the attachment. The Attempt at a Solution I decided to first find only the...

Homework Statement The problem states: A 0.140 kg block on a frictionless table is firmly attached to one end of a spring with k = 25 N/m. The other end of the spring is anchored to the wall. A 0.023 kg ball is thrown horizontally toward the block with a speed of 5.2 m/s. What is the ball's...

Hi I am trying to calculate the height of liquid in a cylinder. I know the dimensions of a cylinder and the volume of liquid. I know how to calculate the volume for a given height, but i can't flip the equation to get the height. volume = area * length; area = r2(θ - Sin[θ])/2...

Homework Statement Consider the function f(x)=(2+4e^x)/(2+e^x). a) Show that f(x) is increasing for all x. b) Find the horizontal asymptote on the left and right side. Homework Equations Use of the lim x->oo to find HA's The Attempt at a Solution Seems like an easy question...

Homework Statement I have a homework that i couldn't do :( can you explain it to me please ? the problem is : find all values of x=c so that the tangent line to the graph of f(x) af (c , f(c)) will be horizontal http://img13.imageshack.us/img13/4222/scan0002izs.jpg The Attempt...

Homework Statement A horizontal eavestrough 3m long has a triangular cross section 10 cm across the top and 10 cm deep. During a rainstorm the water in the trough is rising at the rate of 1 cm/min when the depth is 5 cm. a) How fast is the volume of water in the trough increasing? b) After...

Homework Statement When a mass "m" is hung from the centre of a horizontal wire, length "L". How far will the centre of the wire stretch downwards, in terms of m, L, E (youngs modulus) and A (cross sectional area of wire) Homework Equations mg = Tcosθ When m is the mass hung from...