Physics question and answers for July 12, 2023
- Q a. Represent atoms by small circles that can be charged,neutral, or have a permanent dipole moment represented by an arrowwithin the circle. Show in a sketch how two such atoms...
- Q The length of nylon rope from which a mountain climber issuspended has a force constant of 1.1 × 10^4 N/m.Part (a) What is the frequency, in Hz, at which he...
- Q We'velanded on the moon, Mars and Venus. Mankind has spent months evenyears in space. Pick a mission to a terrestrial planet and shareyour favorite factoid.we just have to Pick a...
- Q A 58 kg skier is skiing down a 25 degree hill which offersnegligible friction. Near the top of the hill (x =0), her speed isrelatively small and equal to 3.6...
- Q Acube of mass m1 glides through from rest along a frictionlessquarter ramp from height 5 m and then crashes with stationary cubeof mass m2 (m2=3m1). After the impact (INELASTIC collision),...
- Q Part AHow fast must an object travel for its total energy to be 6 %%more than its rest energy?Express your answer using two significant figures.Part BHow fast must an object...
- Q An insulating sphere of mass M and radius R is wrapped with Ncoils of wire around its equator. The sphere is placed on anincline at an angle θ in a...
- Q Three long wires are connected to a meterstick and hang downfreely. Wire 1 hangs from the 50-cm mark at the center of themeterstick and carries 1.50 A of current upward....
- Q 21) The two-slit experiment illustrated several fundamentalconcepts in quantum mechanics. Explain what each of these is andhow they are demonstrated in the experiments:Intrinsic RandomnessMeasurements Affect RealitySuperpositionHeisenberg’s Uncertainty Principle
- Q Youare the chief scientist of a crew tasked with travelling to arecently found habitable planet and setting up a colony there forsustained human life. This journey starts on a rocket...
- Q An expandable cube, initially 17 cm on each side contains 3.9 gof helium at 20∘C. 1400 J of heat energy are transferred to thisgas.a. What is the final pressure if...
- Q metal of silver has Refractive index ( 0.05 ) at wavelength 587nm. and it's attenuation coefficient are 3.9 .Find the reflectivity in case of verticalincidence and phase angle difference for...
- Q I am writing a lab report about (Simple Pendulum) and I dideverything except( the Review of Literature and themethods)Please type it if not make sure on a clear hand writingI...
- Q A particle of mass m orbits around the origin (0,0) in acircular path of radius r.(a) Write the classical Hamiltonian (energy) of this system interms of angular momentum of the...
- Q what are the major postulates of the einstein's theoryof special relativity? why is it important?
- Q In the ground state of atomic hydrogen the electron can bepictured as existing some- where within a distance ∆x from theposition of the nucleus with ∆x interpreted as the uncertainty...
- Q An XRD experiment was performed Cu Ka radiation ofwavelength 0.154 nm on an FCC crystal with lattice constant = 3.61Ã…. What are the Miller indices of the planes with lowest...
- Q Find the total volume, total surface area and the longest linefor the following limits:0 ≤ r ≤ 5, 0 ≤ θ ≤ π, 90° ≤ ϕ ≤ 200°0 ≤ r...
- Q how can you determine experimentally the absolute zero
- Q describe an experiment to find the pressure coefficient of a gasat constant volume and that it is the same for all gases
- Q (Include full solutions)You and your friendPaul want to have a bet on how fast it can take to reach anotherfriend Peter who is near the star Sirius B. Knowing that...
- Q A heat engine operating between energy reserviors of 100.69 oCand 502.4oC has 22.12% of the maximum possible efficiency. How muchenergy must this engine extract from the hot reservior to do2,274.09J...
- Q Consider an RLC circuit with resistance 20Ω20Ω  ,inductance 0.05H0.05H , capacitance 2500μF2500μF , and an impressedvoltage, provided by an alternating current generator, withV=50V,120HzV=50V,120Hz. At t=0t=0V=0V,Q=2C,I=1AV=0V,Q=2C,I=1A.a. Complete the ODE below in terms...
- Q a circuit that has a resistor, capacitor, and inductorin series with a 5V AC voltage sourceR = 5 Ω; L = 1 mH; C = 447a) Find ω0 and f0b)...
- Q Suppose that two speakers are connected to a single nail withtwo strings to form a triangular shape. One string has a 3rdharmonic wave of 300 Hz and weighs 3 g/m....
- Q A playground is on the flat roof of a city school, 4.9 m abovethe street below (see figure). The vertical wall of the building ish = 6.40 m high, to...
- Q What are the methods for calculating the free energy differencebetween two states? What are the roles of MD/MC simulations forcalculating the free energy?Name one of the enhanced sampling methods that...
- Q What are the perihelion and aphelion speeds of Mercury?What are the perihelion and aphelion distances of this planet?Compute the product vr(speed times distance) at each of these two points and...
- Q Discuss the different types of managed care plans.Compare and contrast HMO versus PPO. What are their pros andcons?
- Q An photon with a wavelength in the X-ray region of 0.69 nmundergoes Compton scattering by colliding with a free electron. 1)Assume the photon just barely grases the electron, so that...
- Q A spaceship of mass ? is on a circular orbit around a planet ofmass ?, and is moving with constant speed ?0.(a) What is the radius of the orbit of...
- Q (8%) Problem 9: A constant-volume thermometer consists of arigid bulb and a pressure gauge. To obtain accurate results, thisthermometer must be calibrated at a known pressure and temperature.Once this is...
- Q In a series oscillating RLC circuit, R = 16.4Ω, C = 30.9 μF, L = 8.80 mH, andE =Emsinωdtwith Em = 44.8 V andωd = 2900 rad/s. For time t...
- Q ) (a) “Briefly†explain the difference between secondary,backscattered and auger (French!) electrons. (b) What is theprimary difference between a secondary electron detector and abackscatter electron detector?
- Q In the figure below, a solid cylinder of radius 18 cm and mass12 kg startsfrom rest and rolls without slipping a distance L = 7.9mdown a roof that is inclined...
- Q The conductivity of aluminum is 4.1×10^7 Ω−1 m−1 at roomtemperature. Calculate the following optical properties at 500 nmaccording to the Drude model. (v1 = 3.82 × 10^15 s-1 .)[1] ε1...
- Q A diverging lens has a focal length of magnitude 16.2 cm.(a) Locate the images for each of the following objectdistances.32.4 cmdistance     cmlocation     ---Select--- in front of the lens behind the lens16.2 cmdistance     cmlocation     ---Select---...
- Q Give a brief introduction and explain importance for physics forGreen Functions and integral equations
- Q Asignal with a wavelength of 15cm goes through a car window that is30cm wide and has an extension of 6m deep. What is linear width ofthe signal's central max at...
- Q 1. A paramagnetic solid with three levels A paramagnetic solidis composed of N dipoles of magnetic moment μ⃗. The dipoles can beoriented at 0 (in alignment), 90 or 180 degree...
- Q The theory of the particle nature of light proposed by IsaacNewton and in order to support his theory, Newton had to explainthe many behaviours of light using his theory. Discuss...
- Q A thin rod (mass 8.28 kg, length 8.04 m) is sitting on ahorizontal, frictionless table. There is a 0.626 kg frog sitting onthe very end of the rod; you can...
- Q Elastic unequal mass collision: We have a similar situation asin the previous question but now truck A has mass mA and initialvelocity uA. Truck B has mass mB and is...
- Q Two thin converging lenses of focal lengths f1 = 11.0cm and f2 =20.0cm are separated by 25.0cm. An object is placed 33.0cm to theleft of lens 1. Find the position...
- Q 4. A mysterious document had been discovered in F¨uhrerbunker inBerlin and Robert Langdon was urgently called to investigate. Aspart of his top secret mission, at midnight he goes into aconcealed...
- Q The Simple harmonic oscillator: A particle of mass m constrainedto move in the x-direction only is subject to a force F(x) = −kx,where k is a constant. Show that the...
- Q Consider electric field of electromagnetic waves that areparallel to plane of incidencefinda) Â Â fractional ratio of reflected and refractedfields relative to incident fieldb) critical angle at which reflected wave vanishes
- Q You have been hired as an expert witness in a court caseinvolving an automobile accident. The accident involved a car ofmass 1870 kg (car A) which approached a stationary car...
- Q At a wild-west show, a marksman fires a bullet at a 12 g cointhat's thrown straight up into the air. The marksman points hisrifle at a 45 ∘ angle above...
- Q sphere with radius \"a\" which is made of paramagnetic material(with permeability μ) is placed in uniform magnetic field B.Find:a) magnetic scalar potential inside and outsideof  sphere.b) magnetization densityc) surface curent density...
- Q What is the benefits of using cfd?
- Q A spherical shell with radius R and superficial chargedensity,It rotates around the z-axis through its center with a constantangular frequency.The magnetic field formed in the center as a result of...
- Q A cylindrical conductive shell with radius a and height hTotal i0 flow passes counterclockwise from the surface.The stream is homogeneously distributed over the lateral surface ofthe cylinder. Cylinderformed on the...
- Q Did you know that diesel engines don’t have spark plugs? Thecycle that diesel engines undergo involves adiabaticallycompressing the air in the cylinder, then injecting some fuel. Whenthe fuel is injected...
- Q Apower supply produces voltage described as V= 100sin(60t). what isthe average value of this voltage and what is the average voltagesquared?The average voltage is supposed to be 0V and then...
- Q How much ice is needed to make ice tea at a temperature of50 C from 140 grams of hot tea at 650 Ccontained in a glass container of 50 gm...
- Q A 2 kg ball moving W at 5 m/s collides head on with a 1.5 kgball moving E at 8 m/s. Ifthe collision is elastic, compute thevelocity of each ball...
- Q Show the Biot Savart law for current density satisfiesmagnetostatic equation
- Q When you examine the calculated power outputs, how does theLewis equation compare with the Johnson average and the Harmanaverage power equations? With the Johnson and Harman peak powerequations? The Sayers...
- Q Q.7 MRI machine uses magnetic field to create detailedimages of human soft organs. Can youelaborate the basic concept of working of MRI scanner? How thestrong magnetic field isproduced in MRI...
- Q Two optical fibers have an attenuation of 10 dB and 15dB. Provethat the attenuation will be 25dB if they joined end-to-end.
- Q Give your recommendation about the concept of specificheat capacity and latent heat canbe utilized in ice- cream industry to cool the ice creams and incooking food in the kitchen. In...
- Q Consider a filter where the output current was considerable (mostof the Iin becomes Iout). Would a low pass RL or RC circuit wastemore power in the pass band? Would your...
- Q Two lab partners, Mary and Paul are both farsighted. Mary has anear point of 6.7 cm from her eyes and Paul has a near point of 130cm from his eyes....
- Q A mass of 20 grams stretches a spring 5cm. Suppose that the massis also attached to a damper with constant coefficient 0.4 N·s/m.Initially the mass is pulled down an additional...
- Q Q4. A science project exhibit, a capacitor isconnected in series with a bulb connected to an acsource. If its voltage amplitude is held constant, choose thecorrect option for the light...
- Q You are pushing a set of blocks along a frictionless horizontalsurface. The blocks are arranged in order by the 1kg block, thenthe 2kg block, and then the 3kg block; you...
- Q when subjected to a force of compression, the lengthof a bone (compression Youngs modulus 9.3×10^9N/m2, tensile Youngsmodulus 4.4x10^10N/m2) decreases by 1.9×10^-5m. when the same homeis subjected to a tensile force...
- Q List at least three surface imaging techniques, and describeadvantage and disadvantage of each one.
- Q Ionization Chamber region is used to detect high energetic ? and? paricles while Proportinal region is suitable to detect ? and ?particles with low energy. Why?
- Q Compton Scattering.A photon of wavelength λcollides elasticallywith a free electron (initially at rest) of mass m. If the photonscatters at an angle φfrom its original direction of travel, useconservation of...
- Q Briefly explain how intrinsic germanium can be turned into ann-type germanium and a p-typegermanium by doping of selected impurity atoms. Sketch separate 2Ddiagrams to help illustratethe bonding/structures of extrinsic Ge...
- Q 1a) Marty McFly needs to go 88 mph (39.3 m/s) to jump back tothe future. He is riding his hoverboard holding onto the side of avery very short train, which...
- Q Create a diagram and explain the right-hand rule for the motorprinciple.Draw a diagram of a single loop DC motor and label all theparts. Write a few sentences explaining how the...
- Q An aircraft we will call the \"receiver\" is approaching a secondaircraft in mid-air, which we will call the \"tanker\", forrefueling. The receiver is following the same path as that of...
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