What is produced: Definition and 297 Discussions

This is a list of the most-produced aircraft types whose numbers exceed or exceeded 5,000. Any and all types of aircraft qualify, including airplanes, airships, balloons, gliders (sailplanes), helicopters, etc.

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  1. emilmammadzada

    Particles produced and energies in the target Geant4

    Dear experts.Which example file in Geant4 can I use to find the particles and energies produced in the target?
  2. S

    EMF produced by generator of a car

    First I assumed the question asks about max e.m.f so I just used ratio: output voltage = (2500 / 1100) x 12.7 = 28.9 V, but the answer is wrong. Then I tried to use the ratio of the whole formula: $$\frac{\varepsilon_{1}}{\varepsilon_{2}}=\frac{NBA \omega_{1} \sin(\omega_{1}t)}{NBA \omega_{2}...
  3. S

    EMF produced across one side of a coil

    I want to ask about part c (iii). This is what I did: max e.m.f produced = NBAω = 32 x 0.074 x 4.8 x 10-2 x 2.4 x 10-2 x 2π x 9 = 0.15 V But the answer is 0.077 V so my answer is off by factor of two. Is my mistake related to "emf produced across the side of AC of the coil"? Thanks
  4. BenDover

    Oxygen gas produced by a Solid element + sodium hydroxide solution?

    Hello. I am wondering; which solid at room temperature elements produce oxygen gas when put into a solution of sodium hydroxide? Thanks
  5. Andrea Vironda

    I Can I Calculate the Current and Tension Produced by a Dynamo?

    Hi, I was trying to read about the current produced by a dynamo in my physics books but I can't find any reference. I have a rotor rotating at a certain speed, air flow and with a certain inertia, but how can i find the power produced and related current and tension?
  6. I

    Biology Gel Electrophoresis of DNA fragments produced by apoptosis

    The answer is that there would only be a 250 bp fragment, and it would be brighter. I think that there would just more fragments of all sizes, as more DNA is degraded. I don't understand why there wouldn't be fragments of larger sizes. Thanks!
  7. Caleydos

    Magnetic field produced by linear current in COMSOL

    Hello, I have used an edge current of 10 A through a 0,45 cm (lenght) wire inside an air sphere. The thing is that, according with Ampere law, the magnetic field (B) produced at a 1 mm of distance from the wire shall be 0,002 T, and I am obtaining much higher values in this simulation (around...
  8. E

    How to find the heat energy produced in a resistor?

    i found current to be 2/5 A. then 2/5A multipled by 6s = 2.4C. and since one joule per coulomb is equal to the unit of p.d, i get 2.4J. I don't get 4.8J(supposed answer)
  9. I

    Chemistry Electrolysis Problem -- Half reactions and gasses produced

    The solution for a) is 2H2O+2e- → H2 +2OH-, and the solution for b) is O2, because the half reaction at the anode is 2H2O→O2 +4H+ + 4e-. I don't understand why the electrolysis does not involve Na2SO4 being reduced or oxidized, and only considers water. Thanks.
  10. E

    Waveform produced by a collapsing magnetic field

    A thought experiment: A electron is moving in a straight line at velocity v. It instantly stops dead. It doesn't move another femtometer. Obviously its magnetic field collapses and produces light. What is the waveform of the light produced? Is it something like this...
  11. Adams2020

    What is the recoil energy of a nucleus produced in its first energy level?

    Table: To solve, using the conservation of energy: E0=(m(deutron)+m(16O)-m(17O)-m(p))c^2 so: E0=(2.014+15.994-16.999-1.008)931.5=0.93 MeV. so using the conservation of energy: 14.95+0.93=16.62+0+E' E'=- 0.74 MeV But the energy sign has become negative. I also calculated for the first excited...
  12. S

    How many neutrons are produced in nuclear fission?

    The nuclear fission reaction is: ##U_{92}^{235} + n^{1}_{0} \to Ba_{56}^{141} +Kr_{36}^{92} + 3 ~n^{1}_{0} ## I am not sure about the number of neutrons produced. Is it 2 or 3? 2 is from the number of neutrons on the RHS - number of neutron on LHS 3 is from the number of neutrons on RHS only...
  13. C

    Frequency of EM waves produced by linearly accelerating charges

    I was wondering about EM waves produced by linearly accelerating charges, as opposed to oscillating charges. With oscillating charges, the frequency of the wave depends on the frequency of the oscillation of the charge. But what determines the frequency of the wave produced by a linearly...
  14. angela6884

    Misc. How can I enlarge the light produced by a laser?

    I need to enlarge the light produced by a small laser beam that I have for a science project. I can't buy a larger laser because they're too expensive and not in the right color. Any suggestions? Thanks!
  15. T

    How Is Rice University Creating Low-Cost Graphene from Carbon Materials?

    Researchers at Rice University in Houston, Texas, USA have found a low cost way to produce Graphene from just about any Carbon based material. They flash heat it to around 3 000k by electrical discharge and it cools into single-layer flakes...
  16. chemisthypnos

    How much steam is produced in an electric arc furnace?

    Hello, everyone. Does anyone know how much steam is produced by an electric arc furnace in a set amount of time? I have not been able to find any information on this despite how much water is no doubt used to cool the electric arc furnace. Can anyone help?
  17. bieon

    Finding the Power Produced by a Hydroelectric Generator

    My Attempt So Far: 1. Write down all information: Q=10m³ /min h=75m 2. Change 10m³ /min to m³ /s 10m³ /min × min/60s =1/6 m³ /s 3. Change Volumetric Flow Rate to Mass Flow Rate ṁ=ρQ ṁ=1000kg/m³ × 1/6 m³ /s ṁ=166.67 kg/s 4. Apply Potential Gravitational energy but replacing the Mass with...
  18. CricK0es

    How can I evaluate the power produced by a WEC unit? (wave energy)

    I'm currently researching if I could implement some wave energy into my small scale hypothetical project. I've identified some commercial models, namely Seabased and SINNPower, and I assumed that they would have approximate values of power output given wave period, height (among many other...
  19. JF001

    I How is the viscosity of a plasma produced?

    Summary: I'm interested in knowing more about instabilities within plasma. Is the viscosity of plasma produced by thermal, magnetic, or gravitational effects (or even something else)? I had the opportunity to talk with multiple Ph.D. students during the summer and was especially interested in...
  20. TheBigDig

    Energy of Two Gamma Rays Produced by Pion Decay

    So I worked out the first part and obtained ##E_1 = 478.8MeV##, ##E_2 = 459.4MeV## and ##p = 0.49 MeV/c## but I can't quite wrap my head around the second part. Normally, I'd use the equation for s but I'm confused since I don't know the angle between the gamma rays.
  21. D

    How proportional action is produced in a pneumatic controller

    Homework Statement (a) With the aid of a sketch explain how proportional action is produced in a pneumatic controller whose output is 0.2 to 1.0 bar. Assume that the controller is direct acting. (b) Show, mathematically, that the output is dependent on the difference between the measured and...
  22. O

    Current produced by photolectrons

    Homework Statement In perspective to the photoelectric effect I found following question: Electric current is charge flowing per unit of time. If we increase the kinetic energy of the photoelecrons (by increasing the energy of the incident photons), shouldn’t the current increase, because the...
  23. S

    Tone produced in a partially filled bottle

    Homework Statement A tone will be produced when blowing air to partially filled bottle. What will be the new frequency after drinking some water in the bottle and repeating the same experiment, ? a. Higher than before b. Less than before c. same as before...
  24. R

    Are all EM waves produced by accelerating charges?

    So, a static charge at rest produces an electric field, but no magnetic field. A charge moving with constant velocity produces both electric and magnetic fields. Why is it that accelerating charges are the source of all electromagnetic radiation? How would one go about showing this using...
  25. J

    The direction of induced current and magnetic field produced

    Homework Statement The figure below shows a small circular loop of wire in the plane of a long, straight wire that carries a steady current I upward. If the loop is moved from distance x_2 to distance x_1 from the straight wire, what will be the direction of the induced current in the loop and...
  26. DaTario

    I Chemical Elements produced inside the Sun

    Hi All, I would like to know if the following statement is true or false: The nuclear processes that happen inside the Sun can produce at least one unity of each of the known chemical elements. Best Regards, DaTario
  27. D

    How does sound intensity affect the current produced by a mic?

    I measure sound (dB) from a speaker at 0cm and 100cm using a diaphragm microphone. 0cm-100dB, 100cm-30dB diaphragm microphone cinsists of a diaphram, coil and a permanent magnet. the coil is attached to the diaphragm, when a sound wave hits the diaphragm it causes to move back and forth which...
  28. S

    What gas is produced when copper is added to diluted HCl?

    Copper pennies were placed into HCl which had been diluted with an unknown quantity of water. The pennies look cleaner, ... remain un-corroded (as expected). There is a slight bit of gas being produced , with no smell, but can cause discomfort to eyes. Bubbles formed on the pennies for the...
  29. Hamza Abbasi

    Strain produced in a rod after expansion

    Homework Statement A rod of length ##L_o## is kept on a friction-less surface. The coefficient of linear expansion for the material of the rod is ##\alpha##. The the temperature of the rod is increased by ##\Delta T## the strain developed in the rod will be? Homework Equations $$ \Delta L=...
  30. Ilya Furman

    How Much Heat is Produced by Radioactive Waste?

    To begin, I am not sure whether or not this is the correct location for this post since I am a complete greenhorn to this forum (just joined today!). I ask how much heat is produced by radioactive waste because I was wondering if it was viable to reuse all the tons of stored radioactive waste...
  31. Isaac0427

    How is water produced in photosynthesis?

    I have looked everywhere, but most of the sources say water is not produced (which is not true), and some sources, such as my biology textbook, simply say it is produced. I know for every 6CO2 put into the Calvin cycle, 6 oxygen atoms are put into 2*G3P. Where do the other 6 leave the Calvin...
  32. K

    Sound waves produced by an aircraft

    Suppose that an aircfract somehow is not moving. Then I would expect the sound waves it produces to spread out uniformely in a spherical fashion. Now imagine a airplane traveling at approximately the speed of sound. In this case, if the airplane produces a wave at point A and after a time T the...
  33. N

    How many kg Uranium is needed for 5kW produced?

    Homework Statement Energy released is 5.6MeV, 5kW is produced, Half life = 87.7 years for Uranium Need to find how many kg you need to produced that much power. Homework Equations E = Pt, Q = (mass defect) * 931.5MeV/c^2 The Attempt at a Solution I solved for the energy released to be...
  34. J

    Torque produced by friction when braking in a car

    Hi So I am busy studying rotational motion and there's an example in the book where they explain that when a car brakes the force of friction acts as a torque force which explains why a car lifts up at the back when braking. Because the car does no rotational motion they say the net torque is...
  35. I

    I Width of Spectrum produced by a prism?

    How to calculate the width of spectrum produced by a dispersive prism of a given apex angle and refractive index, of white light of given width incident on first face of prism?
  36. S

    Emergent light produced by two lenses

    Homework Statement Two thin lenses are placed 5 cm apart along the same axis and illuminated with a beam of light parallel to that axis, The first lens in the path of the beam is a converging lens of focal length 10 cm whereas the second is a diverging lens of focal length 5 cm. If the second...
  37. bbbl67

    I What % of the heavy elements are produced by kilonovas vs. supernovas?

    So the recent neutron star merger event showed that most of the heavy elements (gold, platinum, uranium, etc.) are produced in kilonovas. But with neutron star mergers so rare, there can't be that many kilonovas. Prior to this I always used to think they were mostly produced in supernovas. The...
  38. R

    Magnetic field produced at point P

    Homework Statement https://imgur.com/gallery/vCOZq Its question 26, and the figure can be seen at figure 30.26 Derive and expression for the magnetic field produced at point P due to the current carrying wire shown in figure 30.26. The curved parts of the wire are pieces of concentric...
  39. J

    I Gravity changes produced by a compressed and stretched spring

    If I compress a spring beyond its most relaxed point it will have more energy and thus by General Relativity produce a stronger gravitational field than the uncompressed spring will. But suppose instead I pull in the opposite direction and stretch the spring beyond its most relaxed point it is...
  40. G

    How harmonics are produced in a guitar string?

    My question is simply 'are all notes produced in a guitar produced by first harmonics?', but I will clarify what made me ask this question. Now, if you have a wave driver you can make several harmonics in a string by increasing the frequency of the machine. In a guitar string, however, it does...
  41. A

    Are all carbon composites produced from oil?

    As I understand it, carbon composites are some combo of polymers and resins, which are derived from oil(black goo from the ground) as the main raw resource. However, as this is carbon, couldn't such materials be produced also from other sources, like corpses, plants, etc? I mean, carbon is...
  42. C

    Field pattern -- Which can be produced by 2 point charges?

    Homework Statement Homework EquationsThe Attempt at a Solution why not B?
  43. M

    2 body engine, final equilibrium temperate and work produced

    Homework Statement 2 bodies with contant heat capacity C and 2C, are initially at temp T and 2T. if a heat engine executing a reversible carnot cycle operates between the two bodies until their temperatures are equal, what is the final temp of the bodies and how much work is preformed by the...
  44. F

    Electric Field Produced by a Finite Charged Wire

    Homework Statement A charged wire of negligible thickness has length 2L units and has a linear charge density λ. Consider the electric field E⃗ at the point P, a distance d above the midpoint of the wire. What is the magnitude E of the electric field at point P? Throughout this part, express...
  45. J

    Concentration of a salt produced by neutralization reaction

    Homework Statement 10.00 cm3 of 1.00 mol dm–3 sulfuric acid is fully neutralized by 20.00 cm3 of 1.00 mol dm–3 of sodium hydroxide. What is the concentration, in mol dm–3, of sodium sulfate solution produced by the reaction? A 0.33 B 0.50 C 0.67 D 1.00 Correct answer = A Homework Equations...
  46. L

    Are pions produced in pairs?

    I thought only strange particles were produced in pairs via the strong interaction, however in my textbook it states 'kaons, like pions are produced in pairs via the strong interaction'. Can particles that are not strange also be produced in this way?
  47. L

    Force produced by flow in aircraft engine

    Homework Statement Consider an aircraft turbine as in the figure below. In the reference frame of the turbine, air of density ##\rho_0## comes into the turbine with speed ##U_0## through the entrance with cross sectional area ##S_0##. In the combustion zone, air is mixed with the fuel and...
  48. B

    Torque produced in lever setup

    Hi guys, It's been a while since I've done much resolving forces stuff, and I'm struggling to make sure what I'm doing is right. I have a setup like below, and I want to find the torque around point D due to the force acting at point A. I've had a couple attempts but I feel like I'm just...
  49. M

    How Many Regions and Convexity with n Straight Lines on a Plane?

    Homework Statement Suppose n straight lines are drawn on a plane. When these lines are removed, the plane falls apart into several connected components called regions.A region R is is said to be convex if it has the following property: whenever two points are in R, then the entire line segment...