Physics question and answers for August 20, 2023
- Q A tiny charged pellet of mass m is suspended at rest between two horizontal, charged metallic plates. The lower plate has a positive charge and the upper plate has a...
- Q Can someone please explain how to use ladder operators for theaddition of angular momentum, it can be found in chapter 4 ofGriffiths intro to quantum mechanics. Please provide some examplesof...
- Q Light attempts to move from cubic zirconia (n=1.61) to air. In anearby experiment, light is attempting to move from cubic zirconiato water. Finally, in a third trial, light is attempting...
- Q A circular wire loop of radius 1.4 cm is placed in a magneticfield of magnitude 2.3 T. If the magnetic field goes to zero in atime of 5 s, what...
- Q Photosynthesis relies on assemblies of molecules that work intandem to produce energy from water and light. One set of moleculesabsorbs light primarily in the red and another absorbs lightprimarily in...
- Q Prove the product of a compact space and a countably paracompactspace is countably paracompact.
- Q A racing bus rounds a corner on a banked bus-racing track. Theradius of curvature of the turn is R and the curve is banked with agrade G. If the coefficient...
- Q Two objects with masses of 3.20 kg and 8.00 kg are connected bya light string that passes over a frictionless pulley, as in thefigure below. (a) Determine the tension in...
- Q Discuss the reduced zone-scheme for representing electron energyband structures and show how the periodic zone scheme and thereduced zone-schemes are equivalent.
- Q Suppose that you have obtained spectra of several galaxies andhave measured the observed wavelength of the H-alpha line (restwavelength = 656.3nm) to be:Galaxy 1: 659 nm. Galaxy 2: 666.5 nm....
- Q Photolithograph or e-beam lithography is known as a top-downapproach to nanostructures while chemical synthesis is known as abottom-up approach to nanostructures. Compare the advantages anddisadvantages of these two different approaches...
- Q a) Consider 1.3 moles of an ideal gas at an initial temperatureof 400 K and in a 1.2 m3 closed container. If the gasgoes through an isochoric process to twice...
- Q Summarize the Source-Filter Theory. Be sure toincorporate glottal spectrum, resonance, bandpass filter, variableresonator, and the three functions.
- Q Estimate how often stars collide in the Milky Way (using themodel of a cylinder with radius = disc scale length and height = 2*disc scale height)
- Q Estimate how often galaxies collide in a galaxy cluster, i.e.,the stellar component of one galaxy passing through another.(Modelthe average galaxy as a sphere with a radius of 10 kpc).
- Q A 200 g hockey puck is launched up a metal ramp that is inclinedat a 30° angle. The coefï¬cientsof static and kinetic friction between the hockey puck and themetal ramp...
- Q As a physics demonstration, you want a special bowling ball madeto demonstrate exactly 1 kg·m2, so that your students can rotatethe ball about its center of mass to get a...
- Q questions 1) : How to control the polarization of light andintensity and phase of light ????questions 2) : How to control the polarization, intensity, phaseof liquid crystal ???
- Q 3. List some types of optimization algorithmsfor photons and for protons planning.Compare the dose distribution of Photon IMRt with the protonIMPT.How are the organs at risk protected in photon therapy...
- Q 63. Use Max Planck’s quantum theory to explain the followingbehaviour of photoelectrons.a) Low-intensity light does not release any photoelectrons. Whatwill happen if the lightis made brighter? Explain your reasoning. b)...
- Q Could you put the helium nucleus (also known as an \"alphaparticle\") somewhere on a line between the proton and electronwhere it wouldn't feel a net force? Why or why not?
- Q Two events are observed by inertial observer Stampy to occur aspatial distance of 15 c·s apart with the spatial coordinate of thesecond larger than the spatial coordinate of the first....
- Q In a student experiment, a constant-volume gas thermometer iscalibrated in dry ice (−78.5°C) and in boiling ethyl alcohol(78°C). The separate pressures are 0.896 atm and 1.629 atm. Hint:Use the linear...
- Q A tortoise and hare start from rest and have a race. As the racebegins, both accelerate forward. The hare accelerates uniformly ata rate of 1.2 m/s2 for 4.4 seconds. It...
- Q Please answer the following questions clearly.1) If two quantum states differ only by a phase factor, are theyconsidered the same ? if so in what sense ?2) Explain entaglement quickly?3)...
- Q Two spheres have the same diameter and mass, but one is solidand the other one is hollow. Assuming homogeneous densities andputting the origin at the center, calculate the inertia tensor...
- Q What are the steps that you need to take when solving a problemusing Ampere's Law?
- Q (a) (i) What particles inside of an atom make the biggestcontribution to its magnetic moment? (ii) What are the two types ofangular momentum that are involved?(b) You are given a...
- Q In the simulation, for the Rutherford model, which of thefollowing possible observations is correct when you use greaterenergies?The incoming particles can reach closer to the nuclei.Their trajectories bend more.   The particles...
- Q 1. What ROTATIONAL concepts are the HARDEST for you tounderstand and WHY? You can make an answer from your ownexperience, 150+ words needed
- Q A target in a shooting gallery consists of a vertical squarewooden board, 0.230 m on a side and with mass 0.700 kg , thatpivots on a horizontal axis along its...
- Q show that the relaxation time for a heavily damped rlc circuitis RC
- Q Assume that a star’s luminosity is given by L ∠M^3.5 for allmasses. After a burst of star formation, does most of the stellarluminosity come from low-mass stars or high-mass...
- Q Laboratory of Physics - Study of Movement (Pleaseee Ineed this laboratorio answers)PROCEDURE:PART A.Follow the instructions below:1 Develop a procedure to determine how fast you walk.In that procedure, you should clearly...
- Q Taking a gas to be ideal and confined to a rigid metal box, findan expression for how quickly the mean free path of said gaschanges if the temperature is dropping...
- Q Draw a free body diagram for a satellite in an elliptical orbitshowing why its speed increases as it approaches its parent bodyand decreases as it moves away
- Q Post a two paragraph summary about an object or a systeminvolving the movement of a fluid (gas, liquid or plasma). Pleaseexplain this
- Q Driving in your car with a constant speed of 12 m/s, youencounter a bump in the road that has a circular cross section, asindicated in the figure. If the radius...
- Q You are an industrial engineer with a shipping company. As partof the package-handling system, a small box with mass 1.70 kg isplaced against a light spring that is compressed 0.280...
- Q In an XRD pattern using Cu Kα radiation, a certain cubic crystalshows peaks at 2θ values (in degrees) of 44.3, 64.4, 81.6, 98.0. Itis known that the size of the...
- Q Using the difference between FD statistics for electrons and BEstatistics for Cooper pairs, explain superconductivity.
- Q Explain white dwarfs, neutron stars, and black holes usingstatistical mechanics.
- Q Draw a picture for what it means for a crystal lattice to be fcc,bcc, or hcp. Which is spatially least efficient; i.e. which pactsthe least atoms per volume of the...
- Q Explain what happens to liquid helium at standard pressure and 2.2K using BE statistical mechanics.
- Q Find the energy spectrum of a particle in the infinite squarewell, with potential U(x) → ∞ for |x| > L and U(x) = αδ(x) for|x| < L. Demonstrate that in...
- Q Explain the process of binning as it relates to use of a CCDdetector. What are the possible advantages and disadvantages ofusing binning? Include a useful diagram.
- Q Answer True or False for each question. For the threequestions indicated also provide a full explanation; this is likelyto take at least two sentences.1) Production of particle-antiparticle pairs ended because...
- Q 1) A rock with a mass of 550 g in air is found to have anapparent mass of 327 g when submerged in water.a) What mass, in grams, of water...
- Q A 0.870 m long brass pendulum experiences a 21.0°C temperatureincrease. (a) Calculate the original period (in s). s (b) What isthe change (in s) in the period? s (c) Find...
- Q You are planning to create an ohmic contact for your newsemiconductor device. Unfortunately, in your first attempt thecontact shows a diode-like current-voltage characteristic, whichindicates that the electrons must overcome a...
- Q 8 mins persuasive speech on SELF-DRIVING CARS SHOULD BEILLEGAL!Outline
- Q Consider a photon produced in the center of the sun. (A) Howlong thisWould it take photon to cross the sun and reach the surface ifthere was no absorption? (B)Suppose the...
- Q Select simply supported timber beams (S4S) for the followinguniformly distributed line loads and spans. deflection is not toexceed span/240. douglas fir, 200 lb/ft., 24ft span.
- Q 1) Define the Triboelectric Series and based on your datadetermine it for the White, Blue and Al charge producers/proofplane.2) How does this experiment verify Gauss's Law3) Who is the mathematician...
- Q Explain why the classical theory of light as an electromagneticwave (or of electrons as particles) is unable to explain thefollowing phenomena whereas quantum mechanics is successful.(1) The turn-on voltage of...
- Q Write about thefollowing:Texture(preferred orientation)of polycrystalline material, grain size, effect of temperature on xrayintensity, structure factor.?
- Q Your kid brother gets a noise emitting toy for Christmas. Thistoy emits sound at a constant frequency. He attaches the toy to arope and starts to swing it back and...
- Q Show that momentum conservation follows fromtranslational invariance.
- Q 79. Describe the event types in annihilation coincidencedetection and how we correct for non-true coincidence.
- Q I.4. Hartree–Fock approximation. The Hartree–Fock approximationis a simple yetimportant model for understanding electron–electron interaction incrystals.(a) Derive the Hartree–Fock self-consistent field equations fromthe variational principleusing a Slater determinant of single-particle orbitals...
- Q Considering the following data for fluorescent and incandescentbulbs to answer the following questions:Fluorescent bulbIncandescent bulbLight output (lumens)9851000Life (hours)10,0003,000Energy Use Rate (watt)13100Purchase cost ($/bulb)3.751.55Energy costs ($/kW-h)0.120.12Disposal/Recycle cost ($/bulb)0.980.05Data from several source:...
- Q A space station is approximately a ring of radius,R, and mass m,which rotates about its symmetry axis with angularvelocity,~ω=ω0ˆe3. A meteor is traveling with momentum,~p, that isparallel to the original...
- Q a. Give the derivation for the condition for two-slitinterference. Make sure you usewords and a diagram to communicate the derivation.b. Based on previous measurements, the lines are at 589.592 nmand...
- Q (a) How much work is required to compress 4.92 mol of air at 19.9
- Q A potential difference of 4.50 kV is established betweenparallel plates in air.If the air becomes ionized (and hence electricallyconducting) when the electric field exceeds 3.05×106 V/m, what is the minimum...
- Q What is the difference between Rayleigh and Stokes (anti-Strokesscattering)?
- Q Briefly explain the two postulates of relativity, howthey differed from classical physics, andwhy Einstein was led to propose them. List at least 2implications of the postulates.
- Q What is light? You can start by describing the differenthistoric models for light and explain their individual strength andshortcomings in explaining observable phenomena. Then, try tosummarize our current quantum mechanic...
- Q How to find the central pressure of Jupiter? Assuming we knowthe mass of the Jupiter.
- Q Problem 1 Two friends are planning to go on a 480 mile-long bikeride over the summer. One is planning to ride a mountain bike with26-in. tires, the other has a...
- Q Materials Science: Composites (Chapter 16)How do we predict the stiffness and strength of the varioustypes of composites?
- Q Wi-Fi RF Linearization can youexplain this topic in a simple way to make me understand it ?
- Q Density of modes. The essentials of calculating the number ofmodes of vibration of waves conï¬ned to a cavity may be understoodby considering a one-dimensional example. (a) Calculate the numberof modes...
- Q Include an original free body diagram and an original extendedfree body diagram representing the ideal disposition of the fourmain forces acting on an aeroplane during the five different stagesof flight....
- Q What is compton scattering and why is it important? How can comptonscattering be applied to an innovation in the future?
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!