Tube Definition and 886 Threads

I made a video for you tube. When I type in the tags it doesn't show up under the searches. Please help me fix this.

Hey I was just wanting to know, for something like a guitar amplifyer what is the inputted signal connected to on the valve (cathode, anode, filament or grid) and also what the outputed signal is connected to. thanx

Homework Statement A U shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 10 cm deep. How far upward from its intitial position does the mercury in the right arm rise? Homework Equations The Attempt at a...

Homework Statement A long tube contains air at a pressure of 1.00 atm and a temperature of 77.0 degrees celsius. The tube is open at one end and closed at the other by a movable piston. A tuning fork near the open end is vibrating with a frequency of 500 Hz. Resonance is produced when the...

Hi...can anyone help out explain the relationship of diameter to velocity of air flow thru a tube for the following science experiment. A photo is attached. The question they are trying to answer thru the attached experiment is: Does the diameter of the tube affect how high a ping pong ball...

Homework Statement A positively charged particle of mass 7.2 * 10^-8kg is traveling east with speed of 85 m/s. The particle enters a 0.31 T uniform magnetic field, and 2.2 * 10^-3 secounds later leaves the field one-quarter south with speed of 85 m/s. What is the charge of the particle and...

[b]1. Dan is practicing on his church organ and he finds that the next two harmonics of the 370 Hz Pipe are 1110 Hz and 1850 Hz. Is the pipe closed at one end, or open at both ends? Show all work. [b]2. i don't know where to go :( [b]3. none

[b]1. A child blows on a 20cm high soda bottle, and it creates a sound of 455Hz, how much liquid is inside the bottle? [b]2. not nsure about the equations [b]3. i attempted a solution, but all came out to something along the lines of 0.018 i don't think that's right

I'm considering dissecting an old, color cathode ray tube television. Do cathode ray tube televisions have capicitors in them that could shock me?

Homework Statement One end of a long glass rod is ground to a convex hemispherical shape. This glass has an index of refraction of 1.53. When a small leaf is placed 20.3 cm in front of the center of the hemisphere along the optic axis, an image is formed inside the glass 9.08 cm from the...

[SOLVED] Beam Deflection in a Television Tube Homework Statement Each of the electrons in the beam of a television tube has a kinetic energy of 10.8 keV. The tube is oriented so that the electrons move horizontally from geomagnetic south to geomagnetic north. The vertical component of Earth's...

Homework Statement A uniform chain of length L and mass M is constrained to move in a frictionless tube. Initially a fraction (1-f0) of the chain rests in a horizontal section of the tube. The remaining fraction f rests in a section of the tube that is inclined downward from the horizontal at...

Ozone Generation (Help required) I am working on the project of "Ozone generation". Generation of ozone is done using discharge tube working at around 6KV. But the source from where I got the details of the project doesn't provided the information on the construction part of it. Please...

I am currently part of a group (University) working on a project that is focused on designing a linac to find the Higgs Boson. I have a question about the the limiting factor for the tube/tunnel. Currently we have two considerations: 1) The thickness of the walls required to maintain the...

Homework Statement An electron in a cathode ray tube is accelerated through a potential difference of ΔV = 11 kV, then passes through the d = 4 cm wide region of uniform magnetic field. What field strength (in mT) will deflect the electron by 10(degrees)? (Hint: is it a reasonable...

Homework Statement A 10g steel marble is spun so that it rolls at 150rpm around the inside of a vertically oriented steel tube. The tube is 12 cm in diameter. Assume that the rolling friction is small enough for the marble to maintain 150 rpm for several seconds. During this time, will the...

In a lecture today our lecturer illustrated the idea of wave particle duality and gave some experiments that show evidence for the particle side of things. Namely photoelectric and x-ray tube. If I get this right the basic idea is that free electrons are accelerated through a potential...

Air flows through this tube at a rate of 1200 cm^3/sec. Assume that air is an ideal fluid. What is the height h of mercury (in cm) in the right side of the U-tube? In case the picture doesn't show up, the tube is a Venturi tube. Wide end has diameter of 2cm, narrow diameter is 4 mm, and...

Homework Statement Using a microscope, smoke particles can be seen moving inside a glass tube. They appear as tiny spots of light that move in various directions. The air molecules inside the glass tube cannot be seen with the aid of the microscope. a) State why a microscope is needed to...

Homework Statement A tuning fork is set into vibration above a vertical open tube filled with water, as seen in the figure below. http://capaserv.physics.mun.ca/giancoli-calc/Graphics/Graph16/dgian1686.gif The water level is allowed to drop slowly. As it does so, the air in the tube above...

Homework Statement A 12,000 N car is raised using a hydraulic lift, which consist of a U - tube with arm of unequal areas, filled with oil with a density of 800 kg/m^3 and capped at both ends with tight-fitting pistons. The wider arm of the U tube had a radius of 18. cm and the narrower arm...

Homework Statement One way to produce a (muon-) neutrino beam is to produce a beam of pions and direct them down an evacuated pipe letting the pions decay to a neutrino (i.e., Muon + neutrino) Assume the neutrino is massless, what is the expression for the energy of the neutrino as a function...

Hey, On Monday I am doing an experiment to determine the half-life of protactinium (Pa), using a Geiger-Müller tube. The experiment itself is very straight forward and simple, but I have 70 minutes to do it in, which is a lot of time. I was wondering if there was anything else I could do...

Can somebody please explain what actually happens in cathode ray tube? Is there any current passing through the tube? How does the anode (positive electrode) lost electrons? Is it before the effect of cathode rays? How does the cathode (negative electrode) have bigger amount of electrons? Is it...

Homework Statement This question starts by stating.. "a U-shaped tube filled with water is closed on one end. Tube is about 1m tall. When water is removed from the open end, the water level in the closed end doesn't change.." Then a series of questions.. My question is, why doesn't the...

hey guys i was wondering if anyone could help me with this question, kinda got stuck Homework Statement Figure 24-31 shows a section of a long, thin-walled metal tube of radius R = 5.56 cm, with a charge per unit length λ = 7.34 x 10-8 C/m. What is the magnitude E of the electric field at...

Homework Statement A tube of radius 6.000 cm is connected to tube of radius 1.000 cm as shown above. (see attachment).. Water is forced through the tube at a rate of 20.97 liters/min. The pressure in the 6 cm tube is 1.015×105 Pa. The density of water is 1000 kg/m3. Assume that the water...

Homework Statement I'm have a little problem with understanding the workings of a cathode ray tube. I understand that a filament is heated and that in turn heats the cathode which, due to thermionic emission emits electrons. OK so here is my problem. A positively charged anode is used to...

I notice consistently in the aftermarket exhaust world that in the majority of cases, when a longtube is placed on an engine the low to mid-range power picks up. This is also with the same size diameter primaries but different lengths. So I am comparing: Long tube: 30" primary tubes...

http://www.telegraph.co.uk/earth/main.jhtml;jsessionid=C2UZGR11YEFENQFIQMGSFFWAVCBQWIV0?view=DETAILS&grid=&xml=/earth/2007/12/23/scicosmos123.xml "Inside the tube an isotope of helium (called helium three) forms a "superfluid", an ordered liquid where all the atoms are in the same state...

I want to send the sheets that are on finale over the internet to you tube users so they can post videos of them playing it. I have encountered a problem. How do I upload or save the finale document in a way so that they don't have need to have the finale program to view the document by...

Hiya ! Got a problem about gas flow ... I understand that gas flow speed through an orifice is choked to the local speed of sound once the upstream to downstream pressure ratio crosses a certain number. Any increase of pressure beyond that point does not speed up the flow anymore (though the...

Hi all! OK, hopefully this will be a very quick question. Basically, I want to know how to model a vacuum tube (both triode and pentode) in terms of creating a dynamic system model. For example, if were to look at the voltage in an inductor as a function of time, I would employ the relation...

1. Homework Statement where: l = the length of the tube in cm r = the radius of the tube in cm p = the difference in pressure of the two ends of the tube in dynes per cm2 c = the coefficient of Viscosity in poises (dyne-seconds per cm2) v = volume in cm3 per second pi =...

Can anyone explain me the mechanism of vacuum diode.Specifically how the electronts which are 'boiled' of the cathode behave

Sound waves move from the left(R) to right(L) from a tube. In the tube, the sound waves are split into 2 w/ radius R (half circled shaped) a) if sound emitted has a freq of 444Hz, what is the min value of R that will lead to max L? b) what is the smallest R leads to min sound at L...

I am working on the development of an instrument which can be simply thought of as a cantilever tube. This tube is instrumented with strain gauges to measure the X/Y strains and two sets of rosettes, each consisting of two strain gauges at 45 degree. Note that the X/Y are 3-wire half bridge and...

A long tube charge with charged with uniform spatial density \rho. The inner radius of the tube is: a The outer radius of the tube is: b Need to find the electric field in: a<r<b My approach is Gauss: E*S=4 \pi kq The S is the Gaussean Surface it should be 2 \pi r^2 ?? and q should be...

hello! i am designing a firetube boiler for my design project. could u suggest me some website where i could get interesting and relevant literature review on fire tube boiler. Thanking u in advance

Hi guys, I've been on a few message boards looking for a solution to my problem, but no one has really been able to help me yet. Here is the problem: Question=================== Hi all, this is my first post/thread, just starting out as a second year chemical engineer and I seem to...

Homework Statement When a beam of monochromatic x-rays is incident on a particular NaCl crystal, Bragg reflection in the first order (ie w/ m=1) occurs at theta=20 degrees. The value of d = .28nm. What is the minimum voltage at which the x-ray tube can be operating? Homework Equations...

If the motion of an electron creats a magnetic field around it then why is an electron beam in a cathode ray tube deflected at right angles and not towards the magnetic field? Also, what would be the effect of a magnetic field on a stationary (relative to the field)electron?

A siphon has been started, fluid is now flowing through it. What is the velocity at the top of the tube in relation to the velocity of the exiting fluid: (a) The velocity is greater at the top (b) The velocity is less (but not zero) at the top (c) The velocity is zero at the top (d) The...

What determines the velocity of a fluid, in a normal tube?

Homework Statement A narrow column of air is found to have standing waves at frequencies of 390 Hz, 520 Hz, and 650 Hz and at no frequencies in between these. The behavior of the tube at frequencies less than 390 Hz or greater than 650 Hz is not known. How long is the tube? Homework...

Homework Statement A 50-cm-long wire with a mass of 1.0 g and a tension of 440 N passes across the open end of an open-closed tube of air. The wire, which is fixed at both ends, is bowed at the center so as to vibrate at its fundamental frequency and generate a sound wave. Then the tube...

Homework Statement A U shaped container containing Hg at rest. 11.2 cm of water is added to the right side of container. How much does the Hg rise? Homework Equations p = p + \rhogh The Attempt at a Solution

1. Homework Statement Air at 20 degrees celsius and 100kpa is drawn into a wind tunnel. If the deflection h of a water manometer that is connected to a hole in the wall of the test section to measure the gauge pressure in the flow is 98mm. Calculate air speed in test section in m/s ignore...

Homework Statement Air at 20 degrees celsius and 100kpa is drawn into a wind tunnel. If the deflection h of a water manometer that is connected to a hole in the wall of the test section to measure the gauge pressure in the flow is 98mm. Calculate air speed in test section in m/s ignore fluid...

Can X rays be produced by a television picture tube? My attempt It is possible that X-rays can be produced by a television picture tube or a Cathode Ray tube because by altering the CRT X- rays may be produced. I have no idea if that is true but i think so.