Vertical Definition and 1000 Threads

Hello all, This is (I think) one of the more popular introductory physics questions. Someone ties a bucket to a rope, puts some water in it and swings it around in a vertical circle with relatively constant speed. When the bucket is directly above the person's head, the water stays in the...

a mass is attached to a spring and released. it then oscillates in simple harmonic motion. what is the transformation of energy? i understand how it works horizontally (max Ee at the 2 ends, max Ek at the equilibrium position), but how does it work vertically now that Eg is also present...

An object falling from some point in the air (near the surface) with air friction, R = kv. So, m\frac{dv}{dt} = mg - kv Seperate variables for \int \frac{m}{mg - kv} \cdot dv = \int dt and for the LHS I use integration by parts, so, (m)(mgv - \frac{1}{2}kv^2) - \int mgv - \frac{1}{2}kv^2...

hmm.. I have a question. If a ball is whirled in a vertical circle inclined from the horizontal axis at angle \theta. what is the total acceleration of the ball?

In its final trip upstream to its spawning territory, a salmon jumps to the top of a waterfall 1.9m high. What is the minimum vertical velocity needed by the salmon to reach the top of the waterfall? There seems to be some piece of information missing. I know that: a = 9.8 m/s^2 dy = 1.9m...

Okay, I am messing something up here. I think it's my logic. Given k=2.5 * 10^3 N/m Find how much mass would have to be suspended from the vertical spring to move it 6.0 cm I get W=1/2kx^2=.5(2500)*(.06m)^2=4.5J I think that's right. Then I do W=F*d=m*a*d or...

hi Everyone, I have a couple of books on heat transfer (Heat Transfer, A Practical Approach by Cengel and another one) but none of them contain any information on Nu number for vertical rectangular enclosures. I am trying to find convection coefficient (for free convection) and need Nu to...

7 A body of mass 0.40 kg is whirled in a vertical circle on the end of a cord of length 0.40 m. If the tension in the cord is 0.80 N when the body is at its highest point, find: b the acceleration and the speed of the mass at the lowest point c the tension in the cord at the lowest...

Q. Given f(x)=2(x^2)-4 , determine the new equation g(x) after a vertical compression by a factor of 1/2. The answer provided by the book is g(X) = (x^2)-2, but shouldn't it be g(x) = (x^2)-4 ? Help will be much appreciated. Regards, Adam

Question: Find the Vertical Asymptote if any f(x)=[tex}\frac{2x}{\sin2x}[\tex] Im somewhat lost, I cross multi and get 1/2 although my friends tell me this just equals 1. Any ideas? err...cant get the cool math symbol things to work...

We usually go over stuff after getting the assignments, so I have no clue how to start this question. Figure 23N-14 shows the deflection-plate system of a conventional TV tube. The length of the plates is 3.2 cm and the electric field between the two plates is 10^6 N/C (vertically up). If the...

Find the vertical asymptotes of the graph of F(x) = (3 - x) / (x^2 - 16) ok if i factor the denominator.. i find the vertical asymptotes to be x = 4, x = -4. The 2nd part of the problem asks: Describe the behavior of f(x) to the left and right of each vertical asymptote.. I'm not sure...

A stone dropped from the roof of a building hits the ground traveling at speed 19.4 m s-1 . How tall is the building, in m? is the final velocity 0? or what do you calculate first? to get s thanks in advance

Here is my problem. A vertical cylinder of cross-sectional area .04m^2 if fitted with a frictionless piston with a mass of 13kg. Assume acceleration of gravity is 9.8 m/s^2. If there is 1 mol of an ideal gas in the cylinder at 315 K, find the pressure in the cylinder. Assume the system is...

I received a homework problem that I need guidance on where to start. What is the longest vertical soda straw you could possibly drink from? I do not know where to start on this problem. A small push in the right direction would be greatly appreciated.

a rock whirls in a vertical circle of radius 8m. acceleration of gravity 9.8m/s^2 what must the speed be to have tangential=radial acceleration when the string makes a 37 angle with respect to the vertical? is it Wsinangel=ma v=Wsinangle*r/m)^1/2 ?

An above-ground backyard swimming pool is shaped like a large hockey puck, with a circular bottom and a vertical wall forming its perimeter. The diameter of the pool is 4.9 m and its depth is 1.3 m. Find the total outward force exerted on the vertical wall of the pool. so P= F / A and i used...

Hi, first post. I'm a math/physics, uh, underachiever and I'm looking for more resources on Centrifuges. I apologize in advance for the inaccuracy of my use of physics terminology. I'm interested in finding a formula that calculates both the amount of force and angle of force of tangential...

what will be the logarithmic function with a vertical asymtote at X = -6 that has the intercept Y = 5 I know the denominator will be x+6 to get vertical asymtote, but don't know how to get Log Function ??

hi, If we throw a ball vertical upward, we can easily find the maximum height if ignore the friction.. So if we switch on the friction, how can we find the max height ?

A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.350. Find the smallest value for the angle , such that the lower end of the board does not...

This is my question A fighter pilot dives her fighter plane toward the ground at maximum supersonic speed of 2170 km/hr. She pulls out of the dive on a vertical circle. What is the maximum radius of the circle, so that her apparent weight is never more than six times her weight? I have no...

hi For car to be able to drive trough banked curve on the road with no friction, the vertical component of a normal force must be equal in size but opposite in direction to the force of gravity. Horizontal component F[h] F[h] = m * g * tan(alpha) = m * v^2 / r So there is only one...

Ok :smile: , I had to test my maximum vertical jump. I did three trials and here's what I got: -Maximum standing height (ie without jumping reaching with one hand) = 221.5 cm -Maximum jumping height with one hand (best of three) = 270 cm -Net Height 270-221.5 cm = 48.5 cm, 0.485m My...

What formula do i apply to the following/theories? (1) a 0.30 kg mass attached to the end of a string swings in a vertical circle (R=1.6m). At an instant when theta=50 degrees, the tension in the string is 8.0N. what is the magnitude of the resultant force on the mass at this instant? (2)...

This 5.0 kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of theta = 30 degrees with the horizontal. mu kenetic = .30 between wall and block. I need to a). determine the work done by F, b) the force of gravity and c) the...

hi i have a question: if you have 2 blocks on a vertical inclined plane... ( with angle teta = pi/2) what would m1 be equal to for a1 and a2 to be = 0 (the answer should be in terms of some or all of the variables of m2 and g) thanks

the best rebounders in basketball have a vertical leap (that is, the vertical movement of a fixed point on their body) of 120cm. a) what is their initial "launch" speed off the ground? b) how long are they in the air? i don't want you guys to give me an answer. Can you guys point me...

I am having problems with the following questions. Any help would be greatly appreciated! 19) Automobile travels at constant speed of 60 km/hr (16.7m/s), 800 m along a straight highway that is inclined 5 degrees to the horizontal. An observer notes only the vertical motion of hte car. What is...

Thanks everyone for helping with my last question. Here's another one...(I'm actually in a Physics class, not just asking for "s and g." My TA for the class doesn't have a clue what she's talking about.) A rock is thrown off the edge of a sea cliff. 3.2 seconds later you hear the sound of...

Thanx! Appreciate that!

in vertical 3D http://flash.li.ru/wrestle/3103/game/curveball.swf

Two rollers have a belt that goes between them, like a conveyerbelt. The assembly stands vertical. The lowest of the rolls have a force that acts on its center, and downwards. My book says that this force F can be written as F=S_1-S_2 where S are the forces that the belt produces as a...

1.)Given a cylinder of vertical height, H and radius R. h = H/R So what does this equation means? what is h? 2.)Given L is the length from the cylinder base to an element at ground level, s = L/R. So what does s stand for?

The independance of horizontal and vertical motion... Obviously it is possible to prove the independance of horizontal and vertical motion empirically - we only need look at projectile motion following a parabolic path. However, I have never found a convincing algebraic proof the for the...

if a vertical spring is being compressed down, is the Elastic potential energy the only energy? Ee = .5kx^2 is gravity included in that? or does it not play a role? and how could I tell how far an object would fly up in the air once the spring is released? thanks

"In a lift accelerated upwards at a certain rate, a spring balance indicates a weight to have a mass of 10kg. When the lift is accelerated downwards at twice the upward rate, the mass appears to be 7kg. Find the actual mass and the upward acceleration of the lift." In short, I am stuck. I...

16x^2+9y^2+192y-36y+468=0 Was the original conic i had to conver this into standard form and got \frac {(x+6)^2} {9} + \frac {(y-2)^2} {16} =1 Im not sure if this is a horizontal or vertical ellipse

A rope of mass m and length L is suspended vertically. Show that a transverse wave pulse will travel the length of the tope in a time t = 2(L/g)^1/2. stuck... i tried: v = (T/u)^1/2 ; where T = m(X/L)g and u = m/L the X is the distance from the bottom of the string... so i got v=...

Is there a way to mathematically or physically prove that horizontal motion and vertical motion are effectively independant? ie - is it possible to derive this fact from, say, vectors? I know that is is true - the parabola shape of projectiles wouldn't make sense otherwise, but is there a...

Determine the restrictions on the constants A, C and E such that the following equation is a parabola with a vertical axis of symmetry. Ax^2+Cy^2+x+Ey=0 a) A=0, C cannot=0, E cannot=0 b) A=0, C cannot=0, E=0 c) A cannot=0, C=0, E=0 d) A cannot=0, C=0, E cannot=0 i know that A cannot=0...

y=logx4 state domain and range, x-intercept, vertical asymptote. I have never seen a question like this before. Please help me!

determine the minimum height of a vertical flat mirror in which a person 5'0'' in height can see his or her full image. I have absolutely no idea how to solve this type of problem... Since we don't know the distance between the object and the mirror, how in the world can we calculate the...

Okay, here's the deal: Basketball player Darrell Griffith is on record as attaining a standing vertical jump of 1.2 m (4 ft). (This means that he moved upward by 1.2 m after his feet left the floor.) Griffith weighed 890 N (200 lb). (B) If the time of the part of the jump before his feet...

Ok here is the question.. In a carnival you win a stuffed giraffe if you toss a quarter in a small dish. Dish is 2.1 m away from your hand in a shelve above the point where the coin leaves your hand (y). Initial velocity must be 6.4 m/s. a) find y and b) what is the vertical component of...

:frown: 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 player...

There is a maximum height of a uniform vertical column made of any material that can support itself without buckling, and it is independent of the cross sectional area (why?). Calculate this height for a) steel (density 7.8x10^3) b) Granite (density 2.7x10^3) I'm just really confused on how...

A particle m is moving in a vertical circle of radius R inside a track. There is no friction. When m is at its lowest position, its speed is v0. Suppose v0 is 0.775 vmin [ vmin = root(5gR) ]. The particle will move up the track to some point at P at which it will lose contact with the track and...

Show that the conservation of energy holds also for the vertical spring where x is measured from the vertical equilibrium position (x_0 = mg/k) for a mass m. This is what I did so far. Where do I go from here? f = mg - kx_0 = 0 kx_0 = mg E = KE + PE_grav + PE_spring = ([mv^2]/2) - mg(x...

Determining maximum vertical height A block slides down a curved frictionless track and then up an inclined plane. The mass of the block is the point mass m. The coefficient of friction between the block and the incline is μk = 0.30 Use energy methods to find the maximum vertical height up the...