Physics question and answers for July 09, 2023
- Q What will power the cars of tomorrow (in about 10 years, ~2030)?Choose and describe one energy source. 1 point Explain the reasonsfor your choice and identify the advantages and disadvantages...
- Q A highway is to be built between two towns, one of which lies33.5 km south and 70.8 km west of the other. (a) What is theshortest length of highway that...
- Q Which of the following describes the change in current from theprimary circuit to the secondary circuit of a step-up transformer?a. The current in the secondary circuit is less than the...
- Q Solve the differential equation y'''-3y''+4y=e2xusing variation of parameters and wronskians. Please provide stepsespecially after finding the wronskians.
- Q -Derive the law of the conservation of momentum using LagrangeFormalism.-Derive also the conservation of the angular momentum
- Q An Uncontrolled Full-Wave full-bridge rectifier withRL-Source load and Discontinuous loadcurrent is to be designed based on the following assumptions andconstraints. Design the circuitand calculate the parameters of the rectifier based...
- Q A plunger cylinder device contains 50 L of liquid water at 50 oC and 180 kPa. Heat is transferred to the water until 40% of the liquid evaporates. Determine the...
- Q Discuss nuclear gas cycle in detail. Please make a diagram ofnuclear gas cycle integrated with Multi-effect distillation withdetailed explanation.
- Q 1)Regarding the UTB(ultra-thin-body) MOSFET, why dothey use the raised source/drain technique ?2)In the FinFET having the Fin height,Hfin, and Fin width, Wfin, , What is thechannel width of MOSFET, W?3)Compare...
- Q This is for a lab report so a good explantion in that formatwould be great, thank youIn class we learned that magnetic field lines form closed loops,and that magneticmonopoles (“chargesâ€)...
- Q Write about how light is affected by gravity? in 2-3 pages paperin APA format
- Q An L-R-C circuit has an inductance of0.430H , a capacitance of 3.00
- Q Estimate all radiation risks for astronauts after travel fromthe Earth to the Mars and back. Duration of the travel is 1.5years. Total absorbed dose will be around 6Gy. Discuss validity...
- Q There is a __________ between two identical objects that havebeen charged in the same way. Choose one from below and explain. a)short range repulsive force b) short range attractive force...
- Q As part of previous adventures, formerly conjoined identicaltwin, Sue, is now 13.4 years younger than her identical twin Lou.(The anniversaries of their birth are no longer the same day.) Itis...
- Q Vector  has a magnitude of 7.00 units and makes anangle of 39.5° with the positive x-axis.Vector  also has a magnitude of 8.00 units and isdirected along the negative x-axis. Using graphicalmethods find...
- Q Comparehow much electrical energy can be produced from one gram ofnatural uranium using the nuclear technology (assuming 0.7% contentof U235 isotope in natural uranium and a conventional nuclearreactor of thermal...
- Q The Earth has an angular speed of 7.272·10-5 rad/s in itsrotation. Find the new angular speed if an asteroid (m = 4.87·1022kg) hits the Earth while traveling at a speed...
- Q 1. A wave completes 20 cycles in 8 seconds. The frequency of thewave is .a) 2.5 Hzb) 160 Hzc) 0.4 Hz2. The electric face between two charged particles is F...
- Q What is the physical meaning of the following withrelations and diagrams.1-Zero point energy   2- Thermal expansion  3- The dispersion relation4-Hall Effect       5- The density of states    6- Debye T^(3 ) Law
- Q Suppose our Sun eventually collapses into a white dwarf, in theprocess losing about three-fourths of its mass and winding up witha radius 3.0 percent of its existing radius. What would...
- Q Does the unconnected conductor affect the E-field and theequipotential pattern? why?
- Q Decide for each one of the following decays whether it ispossible or not. If not, point out which law of conservation isviolated.Ξ- -> Λo + π- + νΞ- -> Ω-...
- Q A bomber flies Northwards at height H above the ground, at ahorizontal speed of V_0. The bomber is located at geographiclatitude λ in the Northern hemisphere and flies exactly along...
- Q A VLCC (very large crude carrier) is a large oil tanker that,when fully loaded, has a mass of 300,000 metric tons. (One metricton is 1000 kg.) While several miles from...
- Q You are designing magnetic motors. A colleague1 insists thatlike magnetic poles attract— north poles attract north poles andsouth poles attract south poles. You feel the need to remove thisidea from...
- Q Find the equation of the plane tangent to the function f(x, y) =(x^2)(y^2) cos(xy) at x = y = π / √ 2 . Using this linearization toapproximate f, how...
- Q A small plane that moves along a 1.4 kmkm long runway duringtake-off accelerates from rest to a speed of 10.4 m/s in 4.49minutes . If the mass of the plane...
- Q For the following situations given the system described, whichof the quantities listed should be zero? For those that are notzero, provide its sign. (External work, change in kinetic energy,change in...
- Q When a car is traveling under uniformly accelerated motion, itslinear momentum isconserved2. For a car turning in a sharp turn with a constant speed of 60mph, its total accelerationis equal...
- Q Sally has 100 g each of iodine-131 andradon-222.  How much of each of these will remain after 32days?   What will I-131 decay to and Rn-222 decay to?
- Q 1)DistanceOrbital PeriodMercury0.39 AU88 daysVenus0.72 AU225 daysEarth1.00 AU365 daysMars1.52 AU687 days(i) How would you calculate the average distance between planetsthat have different orbital periods. If so, calculate the averagedistance of Mercury,...
- Q _____1.An electroscope is charged by induction. If the charge onthe electroscope is now negative, which statement is true?Electrons left the charged object used in the induction processand entered the electroscopeElectrons...
- Q A person is wearing a thin bracelet on a wrist that has adiameter of the bracelet, 6.2cm, and the diameter of the wire is2.0mm. The person moves the position of...
- Q Describe Density Waves in trafficImagine you are driving one such car. Describe what happensbefore you encounter the truck, as you wait behind it, and afteryou pass it. Address your speed,...
- Q Question 1:A sample containing 30% ZrSiO4 , 30% FeTiO3, 30% TiO2 And 10% Monazite with the chemicalformula (Ce,La,Nd,Th)(PO4,SiO4) weights 10kilograms. Calculate the radioactivity of the sample given thethorium content present....
- Q A 2.08  10-9 C charge has coordinatesx = 0, y = −2.00; a3.30  10-9 C charge has coordinates x= 3.00, y = 0; and a -5.10  10-9 Ccharge has coordinates x = 3.00,...
- Q A 2.00 mol sample of an ideal gas with a molar specific heat ofCV =52Ralways starts at pressure 1.00 ✕105Pa and temperature 350 K. For each of the followingprocesses, determine...
- Q hydrogen atoms are in state 4f. express the operatorthe total angular momentum in the x-axis in the matrix notation, ifj is of minimum value
- Q Superman throws a golf ball horizontally so hard that after awhile it hits him in the back! He concludes correctly that the ballmust have flown once around the Earth! Calculate...
- Q Incomparing traditional low-speed chairlifts with high-speedchairlifts, assumptions have been made (efficiency) by the twochairlifts is the same if they travel same distance.a)Does high-speed chairlift experience more frictoon than low speedchairlift...
- Q The ancient Greeks thought that everything arranged itself bygravity. What did they use for evidence and what did they thinkabout the solar system because of this?
- Q T/F....A positive joule-thomson coefficient implies thedominance if attractive interactions among the elementary gasconstituents.
- Q From Radiochemistry and Nuclear Methods of Analysis, by WilliamD. Ehmann and Diane E. Vance:Ch. 12 # 5Based on the analogy to Rb-Sr dating, write the workingequations and explain the methodology...
- Q You are on an interstellar mission from the Earth to the 8.7light-years distant star Sirius. Your spaceship can travel with 70%the speed of light and has a cylindrical shape with...
- Q Hot hydrogen gas, like that found in star formation regions,emits light only at very specific wavelengths in the visible partof the spectrum: λα = 656.3nm (red), λβ = 486.1nm (teal),...
- Q Two sea ports are on the same parallel of latitude 42â—¦ 27 N.Their difference in longitude is 137â—¦ 35 . Ship A and ship B sailat 20 knots from one...
- Q I have a circuit with a known battery voltage and a knownprimary current through the circuit, but the circuit is complexwith multiple IDENTICAL resistors (3 or 4 in this case),...
- Q What are the disadvantages of using diode chamber for measuringradiationa. Angular dependentb. SSD dependentc. Energy dependentd. Temperature dependente. Combination of Angular & Energy
- Q Electrons in a cathode ray tube start from rest and areaccelerated through a potential difference of 13.8 kV. They aremoving in the +x-direction when they enter the space between theplates...
- Q A solid sphere 10 cm in radius carries a uniform 40-?Ccharge distribution throughout its volume. It is surrounded by aconcentric shell 20 cm in radius, also uniformly charged with 40?C....
- Q (3)a. Briefly explain the main application of positive feedbacksystem(b) Voltage gain of an amplifier without feedback is 60dB. Itdecreases to 40dB with feedback. Calculate the feedback factor.(c) What is the...
- Q Howdo you train yourself to derive physical equations on your own? isthere any harm to researching online on how they are derived?
- Q 1. Why does the formula \"weight in air divided by the apparentloss of weight in water\" give the specific gravity?2. If an object floats on water, its specific gravity must...
- Q A block with mass 2 kg is attached to an ideal massless springand undergoes simple harmonic oscillations with a period of 0.50 s.The surface is frictionless. The amplitude of the...
- Q A simple pendulum consists of a 3.0kg mass attached to a 5.0mlong light rope. The upper end of the rope is fixed on the ceilingof the lecture theatre. At time...
- Q qt9.5A vessel at rest at the origin of an xy coordinatesystem explodes into three pieces. Just after the explosion, onepiece, of mass m, moves with velocity (-22 m/s) î and...
- Q a plane electromagnetic wave travels in a losslessenvironment with physical properties ε = ε0, μ = 4μ0. The electricfield component of this wave is 50 sin (--t - 5x) ay...
- Q Type or paste question here3Objectives•To determine the relationship between kinetic,potential, and total mechanical energy for a cart on an incline.•Todetermine the work done by friction on a sliding cart.•To show...
- Q A proton is traveling horizontally to the right at5.00×106 m/sPart A, B:Find (a)the magnitude and (b) direction of the weakest electricfield that can bring the proton uniformly to rest over...
- Q A plasma of uniform charge density po= iscontained within a cylindrical shape, of infinite length and radiusro. With what speed must a particle of mass m and chargeq perpendicularly strike...
- Q Asteel hemispherical shell forms a dome over a silo the radius R is3.0 cm a hollow sphere with inner radius r1 is 20.0 cm outer radiusr2 is 40.0 cm and...
- Q Consider a mathematical pendulum with a support pointmoving both in vertical (ξ(t)) and horizontal (η(t))direction.(a) Write the Lagrangian and determine the equation of motion.Hint: Consider two dimensions.(b) Consider small angle...
- Q Accelerated electron beams are often used to study features ofatoms on the surfaces of materials. If you wanted to alter thedesign of an electron accelerator to produce an electron beamappropriate...
- Q A.what are the advantages of cathodic stimulation compared toanodic stimulationb. what is the advantage of biphasic simulation compared withcathodic stimulationC.Why constant-current simulation is prefered rather thanconstant voltage stimulation
- Q A 5 kg block starting with an initial velocity of 7.69 m/stravels a distance of x m along a rough surface that has acoefficient of kinetic friction of μ=0.15. It...
- Q A mass-spring system with 0.200 kg undergoes simple harmonicmotion with period 0.55 seconds. When an additional mass Δm isadded, the period increases by 20 % . FIND Δmshow work
- Q A π0 particle hits a stationary neutron and as aresult resonance Δ0(1232) is created, with mass 1232MeV/c2.Choose the right sentence:a) Δ0 will have a momentum of 299 MeV/cb) Δ0 will...
- Q Describe some of the similarities between the permanent magnets andelectromagnets
- Q Given two lines in space, either they are parallel, theyintersect, or they are skew (lie in parallel planes). Determinewhether the lines below, taken two at a time, are parallel,intersect or...
- Q Thomas young showed that light passing through two parallelnarrow slits produce a pattern of light and dark fringes. Did yousupport or contradict Newton's corpuscular theory of light?
- Q Thedevice used for generating very high voltage is call a(n)Â Â Note: in own word
- Q Rotational motion:(a) Show that [?Ì‚?,?Ì‚?]=?â„?Ì‚?,[?Ì‚?,?Ì‚?]=?â„?Ì‚?,[?Ì‚?,?Ì‚?]=?â„?Ì‚?.(b) Show that [?Ì‚2,?Ì‚?]=0, and then, withoutfurther calculations, justify the remark that[?Ì‚2,?Ì‚?]=0 for all ?=?,?,and ?. What doesthis mean in terms of uncertainty principles?
- Q 8) Explain how a solar panel work. What is the inverse of asolar panel?
- Q Find where the object would be to produce an image whichsatisfies each of the following conditions:An inverted image smaller than the object.A magnified and erect image.A magnified image which is...
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