Physics question and answers for July 30, 2023
- Q The normalized wave function of an electron in a linearaccelerator is ψ = (cosχ)eikx + (sinχ)e–ikx, where χ(chi) is a parameter. (a) What is the probability that the electronwill be...
- Q Bart and Nelson challenged each other to a bumper car game.Bart, whose car had a mass of 120 kg (with him in it), traveledwest at a velocity of 9 m/s....
- Q Show how the wave function of the even states of a particle inan infinite well extending from x=-L/2 to x=L/2 evolve in time.Details!
- Q 5) A solenoid passes through the x-y plane. A charge of +5Coulombs with a mass of 5 x 10-7 kg moving at 5 m/s (in the x-yplane) is placed in...
- Q 1.Answer the following questionsA) Describe how the molecules in a gas produce an emissionspectrum. How is this useful in astronomy if we assume that thelaws of physics are the same...
- Q A rocket has an initial mass of 28500 kg, of which 20% is thepayload (i.e., the mass of the rocket minus the fuel). It burnsfuel at a rate of 195...
- Q Ammeter: Explain how to setup a DMM to measure current in thecircuit. Will it matter if the ammeter (DMM used to measurecurrent) is before or after the resistor (on the...
- Q After they completely run out of fuel, all stars leave behindone of three objects, which do not usually do any more nuclearfusion. What are these three objects? Give the name...
- Q A flywheel in a motor is spinning at 540.0 rpm when a powerfailure suddenly occurs. The flywheel has mass 40.0 kg and diameter75.0 cm. The power is off for 36.0...
- Q Hello to anyone reading this!I will start taking physics 6 (general physics at my college)my upcoming semester and I would like to start studying a bit onthe subject before summer...
- Q 5a) A 5-kg object travels at a constant velocity of 25 m/s easton a smooth, frictionless surface. An 8-kg object travels at aconstant velocity of 55 m/s west on the...
- Q A thin stick of length 80.0 cm and mass 120.0 g has two smallspherical masses attachedto its opposite ends (treat them as point masses). One mass is20.0 g and the...
- Q Biologists have studied the running ability of the northernquoll, a marsupial indigenous to Australia. In one set ofexperiments, they studied the maximum speed that quolls could runaround a curved path...
- Q A box rests on top of a flat bed truck. The box has a mass of m= 16 kg. The coefficient of static friction between the box andtruck is μs...
- Q Suggest 6 ways to increase the brightness of the lamp when AC isused?
- Q A cylinder with a piston contains 0.160 mol of nitrogen at1.80×105 Pa and 310 K . The nitrogen may be treated as an idealgas. The gas is first compressed isobarically...
- Q Three-cylinder capacitorA capacitor consists of three concentric cylindrical shells withradii R, 2R, and 3R. The inner and outershells are connected by a conducting wire, so they are at the samepotential....
- Q Consider the system of capacitors shown in the figure below(C1 = 7.00
- Q I have a pinhole 50 microns in size illuminated by a coherentlaser beam. Now, I have a lens (75mm focal length) 1 focal lengthfrom this pinhole, what size will the...
- Q What are the shapes of the followingcompounds?                                                      (10pts)                                  (i)       H2O                                              (ii)CO2                                              (iii) CH4
- Q A spring mass system with a natural frequency fn = 12 Hz isattached to a vibration table. The table is set to vibrate at 16Hz, 0.5 g maximum acceleration:a. What...
- Q benift of small-scale solar photovoltaic power withbattery storage ?
- Q A cat leaps from the ground onto a table that is 1.50 m high.The cat leaves the ground at 8.00 m/s at an angle of 60o from thehorizontal.1. How much...
- Q For a ballistic pendulum lab;Describe in words how you used conservation of momentum in thislab. You must also explain why you were able to use conservation ofmomentum for this part...
- Q 1. find (a)electric field and (b)magnetic field of TEwaves in a rectangular waveguide.2. find (a)electric field and (b)magnetic field ofcoaxial transmission line.
- Q In figure, a wheel of radius 0.30 m is mounted on a frictionlesshorizontal axle. A massless cord is wrapped around the wheel andattached to a 3.0 kg box that slides...
- Q You wish to identify an unknown clear substance . You haveaccess to an optics laboratory with light ray boxes and accurateangle measurement. Design an experiment to identify thematerial?
- Q a) How does the magnetic flux throughthe loop changes as the magnet rotates. Is the flux maximal whenthe magnet is horizontal or vertical on the screen?Why?b) How does changing the...
- Q When an AC source is connected across a 11.5-? resistor, the rmscurrent in the resistor is 8.66 A.(a) Find the rms voltage across the resistor.V(b) Find the peak voltage of...
- Q A tank initially contains 300 gallons of a salt solution made bydissolving 30 pounds of salt in water. A solution containing 0.6pounds of salt per gallon enters the tank at...
- Q from glass membrane electrode , Identify all of the potentialsassociated with your cell, and indicate the potential value whichis not constant.
- Q A girl throws a rock horizontally, with a velocity of 10 m/s,from a bridge. It falls 20 m to the water below. a) How long doesit take for the rock...
- Q For a capacitor of area 100 mm ´100 mm operated at T =300K, with FM = 5.2 eV, xox = 3 nm,andND = 1017 cm-3a) Calculate the flat band capacitance...
- Q If somebody could assist me with the following questions, thatwould be greatly appreciated! Thank you!1. How can fluorescence be used to determine the concentrationof a molecule?2. Fluorescence and absorbance comparison...
- Q Why is there uneven spacing in the P and R branches of avibration rotation spectra?
- Q What is the sequence of movements of the standing bow pullingpose?
- Q An ideal gas that goes through a cyclical process on a PVdiagram and returns to the location on the PV diagram where itbegan. analyze changes in temperature and thermal energy...
- Q Two protons are brought from very far apart to a distance of1×10−15 m and kept there. Then, an electron is brought to point A,equidistant from both protons and forming an...
- Q a one-dimensional box of length 2.7 nm(1) Calculate the wavelength of electromagnetic radiationemitted when the photon makes a transition from n = 2 to n = 1.Answer in units of...
- Q A 700-kg elevator starts from rest. It moves upward for 4.50 swith constant acceleration until it reaches its cruising speed of1.75 m/s. (a) What is the average power of the...
- Q There are two identical, positively charged conducting spheresfixed in space. The spheres are 38.2 cm38.2 cm apart (center tocenter) and repel each other with an electrostatic force of?1=0.0705 NF1=0.0705 N...
- Q A dielectric-filled capacitor consists of two parallel plates,each with an area  A = 15.0 cm2 , seperated by a distanceof d = 10.0 mm and dielectric constant k = 4.00. A...
- Q James has just jumped out of an airplane. After he opens hisparachute he experiences 2 forces: the constant force of gravity,and a wind drag that is proportional to his velocity....
- Q Over and over I'm getting into the same trouble, so I'd like toask for some help.I need to solve some basic electrodynamics problem, involvingmagnetic fields, moving charges or currents.But I...
- Q make technology papers related to scattering
- Q t2 (d2r/dt2) - 9t (dr/dt) + 16r= 4 is an example of a \"Cauchy-Euler equation.\" Such equationsappear in a number of physics and engineering applications.a) Write the complementary homogeneous equation.b)...
- Q make technology papers related to potentialvariations
- Q An automobile tire is inflated with air originally at 10.0°C andnormal atmospheric pressure. During the process, the air iscompressed to 24.0% of its original volume and the temperature isincreased to...
- Q Which is larger, an increment of 1°C, or of 1°F? Explain, usingan example if needed.
- Q A mass m = 16 kg is pulled along a horizontal floor with NOfriction for a distance d =8.4 m. Then the mass is pulled up anincline that makes an...
- Q PLEASE TYPE THE ANSWERAs simply as you can but with complete and comprehensive detail,state and explain each of Newtons Three Fundamental Laws ofMotion. After you have explained all Three Laws...
- Q 1. When a glass rod is rubbed with silk, it(a) gains electrons from silk.(b) gives electrons to silk.(c) gains protons from silk.(d) gives protons to silk.2. In general, metallic ropes...
- Q A blue ball is thrown upward with an initial speed of 22.2 m/s,from a height of 0.5 meters above the ground. 2.7 seconds after theblue ball is thrown, a red...
- Q What happens when a spinning ice skater draws in heroutstretched arms? (a) her angular momentum decreases (b) herangular momentum increases (c) her rotational speed decreases (d)her rotational speed increases
- Q A high-speed lifting mechanism supports a 710 kg object with asteel cable 20.0 m long and 4.00 cm2 in cross-sectionalarea.(a) Determine the elongation of the cable._____ mm(b) By what additional...
- Q Problem 2 – The plates of a parallel-plate capacitor areseparated by a distance d = 0.2 m. There is vacuum between theplates. The voltage difference between the plates is 150...
- Q Using only the spring gun with the catcher removed, fire thesteel ball, making sure the launch velocity is horizontal. Usingcarbon paper (and something to catch the ball after impact with...
- Q Plaque builds up on the walls of an artery decreasing itsdiameter from 1.16 cm to 0.66 cm. If the flow speed is 12.5 cm/sbefore reaching the region of plaque buildup,...
- Q For the some unknown Hamiltonian, we will use a trial wavefunction ?? = ??1??1 +??2??2 . Where ??1 ?????? ??2 are knownfunctionsa. What are the variational parameters of this trial...
- Q Find the expression for the electric field due to a finite sizeof a line charge in a certain distance. Then derive an expressionfor the electric field due to an infinite...
- Q Two resistors of exactly the same resistance are hooked inseries to a power supply and the total current:Itot(series) is measured. The same two resistors arethen connected to the same power...
- Q 2. a)A 0.20 kg hockey puck on a frictionless surface is hit with astick. The force of the stick on the puck, during the 0.4 secondswhile they are in contact,...
- Q QUESTION 4: [20 marks] Multichannel Analyser 160 (a) [10marks] Describe the expected detector spectrum ofAnalyser.Co given by a MultiChannel(b) [5 marks] Calculate the energy difference between thephotopeak and the Compton...
- Q ECG, VRA, BPA, GRIDCO, PURC and NEDCO are all bodies associatedwith the production, distribution and pricing of electrical power in Ghana.Provide their full names and explain their individual functions andthe...
- Q The position of a particle moving along an x axis is given by x= 12.0t2 - 4.00t3, where x is in meters and t is in seconds.Determine (a) the position,...
- Q From atomic mass and density, estimate the lattice constants ofSi, Ge, GaAs, InAs, and InSb. (I'm having trouble with the GaAs,InAs and InSb).
- Q Suppose that 132 moles of amonatomic ideal gas is initially contained in a piston with avolume of 0.94 m3at a temperature of 348 K. The piston isconnected to a hot...
- Q -Discuss three real-life quantities that arenaturally described by complexnumbers. Show that by mathematical equations.-In A.C. circuit what does real part of the circuit present? And,what does the imaginary part present?_Through explaining different forms...
- Q (a) Explain briefly what is meant by atmospheric pressure, andwhy it decreases with altitude.(b) Explain the role of the Earth’s magnetosphere in protectingthe atmosphere from solar wind, and in creating...
- Q A) A 46.1 kg girl is standing on a 169 kg plank. The plank,originally at rest, is free to slide on a frozen lake, which is aflat, frictionless surface. The...
- Q Do the rays reflected from the plane mirror obey the Law ofReflection? Explain.
- Q Write an example \"background\" information for exponential decayusing beer froth experiment:
- Q Humans have little or no sensitivity to polarized light, and nosensitivity at all to ultraviolet light while many invertebratessuch as insects do. In what way do you think this would...
- Q In words, but making use of equations where appropriate, explainhow the Principal of Conservation of Linear Momentum is ademonstration of Newton’s third law of motion. In particular,consider a simple collision...
- Q In words, but making use of equations where appropriate, explainhow the Principal of Conservation of Linear Momentum is ademonstration of Newton’s third law of motion. In particular,consider a simple collision...
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