Physics question and answers for August 08, 2023
- Q A cue ball traveling at 4.0 m/s makes a glancing, elasticcollision with a target ball of equal mass that is initially atrest. The cue ball is deflected so that it...
- Q a) Calculate the x- and y-components of the following two forcevectors:F1 = 200 Newtons @ 30°, F2 = 100 Newtons @ 135°b) What is the magnitude & direction of the...
- Q A group is considering installing a solar power station and hasasked you for your recommendation for a photovoltaic system or asolar thermal system. At this stage you are asked not...
- Q A solenoid having an inductance of 3.3 ? is connectedin series with a 4.7 Ω resistor. If a10.0 ? battery is connected across the pairPlease Answer these 3 following questions.(a)...
- Q A projectile is launched with an initial velocity vo at an angletheta above the horizontal.In terms of vo, theta and acceleration due to gravity g, determinefor the projectilei) the time...
- Q The wave function for a harmonic wave on a string isy(x, t) = (0.0010 m) sin((69.8m-1)x + (309 s-1)t).(a) In what direction does this wave travel?+x-x    What is its speed?m/s(b) Find...
- Q Suppose that you live in a flat-land, i,e a 2d flat universe,produce a derivation for the form of the translation partitionfunction, and comment on the equations with clear explanation?
- Q As shown below, a 840 kg car traveling east collideswith a 1730 kg pickup truck that is traveling north. The twovehicles stick together as a result of the collision. After...
- Q Consider an ideal gas turbine cycle with two stages ofcompression and two stages of expansion.  The pressureratio across each compressor stage and each turbine stage is 5 to1. The pressure at...
- Q A mystery planet and its moon are found revolving around anearby star. The star is a K3 Main Sequence star with a mass ofapproximately 0.8 M☉ and a radius of...
- Q A plane mirror rotates about a vertical axis in its plane at 35revs s^-1 and reflects a narrow beam of light to a stationarymirror 200 m away. This mirror reflects...
- Q I worked out the ï¬elds radiated by an electric dipole in class,and they are also in 11.1.2 of the text. These ï¬elds carry energyaway and we know the radiated power....
- Q What is the qualitative mouvement for an electric dipole sittingin situation a) horizontally below a charge q and b) verticallybelow a charge q? Explain whether one has a translation, which...
- Q In Chapter 10, we are working on simple harmonic motion.What similarities do you see in the motion of the skater in thesimulation to the simple harmonic motion described in Chapter...
- Q Light of wavelength 650 nm is incident on a long, narrow slit.Find the angle of the first diffraction minimum for each of thefollowing widths of the slit(a) 1 mm............rad(b) 0.1...
- Q 1. In your own words, explain why a single interaction betweentwo particles may be represented with more than one possibleFeynman diagram
- Q A solid, homogeneous sphere with a mass of m0, aradius of r0 and a density of Ï0 is placed ina container of water. Initially the sphere floats and the waterlevel...
- Q You are asked to define 10 different \" The right hand rule\".Here you first define the application and explain how theright hand rule is applied to find the direction ofphysical...
- Q I need 3 & 4... free free to answer 1 & 2 if youwant!Lenses may be simple ones with two spherical curved surfaces ona piece of transparent material like glass...
- Q For good battery performance and economics, eachcomponent in battery has several requirements. Write therequirements of cathode, anode and electrolyte of Li-ionbattery.
- Q (Show All the Calculations /Wherever Necessary DrawDiagrams)Q 1. An electromagnetic wave with its electric field parallelto the plane of incidenceis incident from vacuum onto the surface of a perfectconductor at...
- Q Plotting rotational variablesContinuing on with using the human body as a physics apparatus,it’s time to try an experiment with your leg!  First,find a comfortable place where you can sit and swing...
- Q Four displacement vectors, A,B, C, and D, areshown in the diagram below. Their magnitudesare:Â Â A = 16.2 m, B = 11.0 m,C = 12.0 m, and D =Â Â 24.0 mWhat is the...
- Q .Consider an electromagnetic wave to be incident normally atthe interface betweena dielectric and a conductor. Derive the expressions for thefollowing Reflection & Transmission from interface of aconductor and surface Impedance.(...
- Q Consider an electromagnetic wave to be incident normally atthe interface betweena dielectric and a conductor. Derive the expressions for thefollowing Reflection & Transmission from interface of aconductor and surface Impedance
- Q From Chapter 2 (MotionAlong A Straight Line) select and explain in your own words two ofthe following 6 learning goals. Then find someone else postdiscussing a different learning goal than...
- Q Why are satellites normally sent into orbit by firing them in aneasterly direction? Based on this, explain why the InternationalSpace Station (ISS) orbits the Earth at about 17,500 miles per...
- Q With necessary equations and diagrams, explain the propagation ofElectromagnetic Waves in a Conducting Medium
- Q Consider an X-ray beam of wavelength 0.1 nm and a gamma ray beamof wavelength 0.00188 nm. if each is scattered by an angle of 90degrees by a free electron, what...
- Q A pendulum has a length 1 m and a mass 1 kg. Assume Earth freefall acceleration equal to 10 m/s^2. When the pendulum oscillates,the maximal deflection angle is +/-1 degree.1.Suppose...
- Q 23. Consider a 2D spacetime whose metric is: ds^2 = −dt^2 +[f(q)]^2 dq^2 (3) where f(q) is any function of the spatialcoordinate q. a) Show that the t component of...
- Q Compare series circuits and parallel circuits. What are threedifferences between series circuits and parallel circuits? What aresome advantages of using parallel circuits instead of seriescircuits? Answer in 1-2 paragraphs.
- Q Provide some background information of the \"Physics on frothDecay\" and briefly explain 2 experiments to showcase it.
- Q How is the sound different when both tuning forks C AND C primeas opposed to a signal tuning are ringing?Why the measured beat minimum amplitude is not zero tryto create...
- Q 10. It has a mass m attached to a spring of elastic constant kand that suffers a damping bproportional to the speed, being b = k / 2. If the...
- Q Study the energy diagram of â¶â°Co deacay. whatradiation is produced in addition to the two gamma rays?thanx in advance
- Q 1. The magnitude of the electric field due to a small chargedobject is 12N/C at a distance of 6m from the charge. What is thefield 3m away from the charge?2....
- Q How would you identify the anode of an unmarked diode?What is the significance, if any, of the reverse-to-forwardresistance ratio of a diode?How do you identify a germanium from a silicon...
- Q a) What is the magnitude of the tangential acceleration of a bugon the rim of a 10.5-in.-diameter disk if the disk acceleratesuniformly from rest to an angular speed of 76.0...
- Q A 100 g ball moving to the right at 4.1 m/s catches up andcollides with a 450 g ball that is moving to the right at 1.0m/s.A. If the collision...
- Q What is reaction rate and calculate the reaction rate for thefusion of proton and deuteron
- Q This is a question about Gamma Gamma correlationlab.What is the difference between a true and a chancecoincidence?what is the minimum radiation dose in mrem whichcauses rapid human death?thanx in advance
- Q A power station delivers 730 kWkW of power at 12,000 VV to afactory through wires with total resistance 2.6 ΩΩ .How much less power is wasted if the electricity is...
- Q A point charge of -4 micro C is located atx = 1 m, y = -2m. A second point charge of 12 micro C is locatedat x = 1 m,...
- Q A point charge of -6 mu or micro CC is located at x = 4 m, y =-2 m. A second point charge of 12 mu or micro CC is...
- Q Halley's comet orbits the Sun with a period of 75.3 yr. a) Findthe semimajor axis of the orbit of Halley's comet in astronomicalunits (1 AU is equal to the semimajor...
- Q From Chapter 2 (MotionAlong A Straight Line) select and explain in your own words two ofthe following 6 learning goals. Then find someone else postdiscussing a different learning goal than...
- Q Collimated atomic beam, saturated absorption and two-photonspectroscopy are three methods of Doppler-free laserspectroscopy.(i) In each case summarize briefly the principle of how theDoppler width is reduced or eliminated ,(ii) Which...
- Q #2 For each of the following cases, write down the fourcomponents of the 4-momentum in the form [Pt, Px, Py, Pz]. Assumeeach particle has mass m. (a) A particle moves...
- Q Aluminum oxide (Al2O3) has an elastic modulus of 400 GPa and aKIc of 4 MPa•m1/2 . A specimen is tested in tension and is found todeform elastically up to the...
- Q A ball is thrown toward a cliff of height h with a speed of 30m/s and an angle of 60° above horizontal. It lands on the edge ofthe cliff 4.0...
- Q Show that 'general Lorentz transformations' form a group.
- Q You want to push a 9.5 kg box up a 3.6o ramp. Thecoefficient of kinetic friction between the ramp and the box is0.5.With what magnitude force parallel to the ramp...
- Q 2) Imagine an infinitely long hollow metal pipe with arectangular cross section. The four sides are placed at x = −a andx = a, and at y = −b and...
- Q The atomic weights of Al28, Fe56 and Cd112 (those are Aluminum,Iron and Cadmium) are 27.982, 55.935 and 111.903 atomic mass units(amu), respectively. Imagine fusing two of these Al nuclei to...
- Q List everything that Classical Physics can't explain, thatQuantum Physics can explain, and how they can explain it
- Q Calculate the coupled eigenstates that result from the couplingof orbital angular momentum ?=2 with spin angular momentum?=1/2.HINT: You may freely use results from Ch. 7 in N. Zettili’sbook, including results...
- Q An insulated cylinder fitted with a movable piston to maintainconstant pressure initially contains 100 g of ice at -10 C. Heat issupplied to the contents at a constant rate by...
- Q What radiation, alpha, beta, or gamma, has the largestattenuation in matter? What radiation has the smallest attenuationin matter?I think the wording of this question is weird. I thoughtattenuation was similar...
- Q Twoastronauts, Amy and Bill are tethered together by a massless cord ahundred metersapart in deep space. Amy’s mass is 55.0kg and Bill’s mass is74.5kg. Amy and Bill arerotating around each...
- Q a)A car initially traveling at 31.7 m/s undergoes a constantnegative acceleration of magnitude 1.60 m/s2 after itsbrakes are applied.-How many revolutions does each tire make before the car comesto a...
- Q In a few sentences explain how you can perform and experiment tofind out if a circuit element is ohmic or nonohmic. Whatmeasurements do you make and how do you decide,...
- Q A negative charge is moved in the direction of an E⃗E→field line. Which of the following statements are true? The systemis the charge.A negative charge is moved in the direction...
- Q 5. For an object moving in uniform circular motion, does thecentripetal force do work on the object?A.No, because the force is always perpendicular to the object'sdisplacement.B.No, because the displacement of...
- Q The IORE electric locomotives are some of the most powerful inthe world. The locomotives, working in pairs, weigh 180 tons each.They can pull up to 68 iron-ore wagons weighing 120...
- Q Two forces, vector F1 and F2, act at apoint. The magnitude of F1 is 9.50 N, and its directionis an angle 65.0 degrees above the negative direction of x-axis inthe...
- Q Now let’s consider a projectile problem in which the initialvelocity is specified in terms of a magnitude and an angle. Supposea home-run baseball is hit with an initial speed V0=37.0...
- Q A 5.3-cm-thick layer of oil (n=1.46) is sandwiched between a1.1-cm-thick sheet of glass and a 2.0-cm-thick sheet of polystyreneplastic (n=1.59). How long (in ns) does it take light incidentperpendicular to...
- Q G =6.67x10^-11 m^3/kgs^2Neptune has an orbital radius of 4.5 x 10^9 km and orbitalperiod of 164.8 years.Jupiter has a mass of 1.89 x 10^27 kg and an orbital period of11.9...
- Q b. Compare what happens to potential energy, kinetic energy, andtotal energy as the skater moves up and down the track. Whatgeneral statement can you make about the relationship betweenpotential and...
- Q If you look at the US production of crude oil, you can see thatthe data trend for peak oil occurring around 1970. Since then ithas declined with a plateau here...
- Q 6. The Very Long Baseline Array radio interferometer (VLBA) hasa longest baseline of 8000 km and can operate at frequencies ashigh as 44 GHz. The Keck interferometer has a baseline...
- Q One goal of EHRs is to facilitate providers
- Q A cannon tilted up at a 35.0 ∘ angle fires a cannon ball at 82.0m/s from atop a 13.0 m -high fortress wall. What is the ball'simpact speed on the...
- Q Planet X has a moon that has a very elliptical orbit. Itsfurthest point from the planet X is 4 × 10^8 m and its closestpoint is 3 × 10^8 m....
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