Physics question and answers for July 13, 2023
- Q (a) Show that the quantity1ε0 μ0has the dimension of speed, where ε0 is vacuumpermittivity and μ0 is vacuum permeability.(b) Explain how each constant is important for electricity ormagnetism, and what...
- Q Predictive analytics in business is an important application ofmultiple regression analysis. Generally speaking, what is meant bypredictive analytics? As a business owner, how could you useregression analysis and predictive analytics...
- Q explain the three dimensional, time-independent Schrödingerequation.describe the atomic structure of hydrogen atom.explain nuclear binding energy and structure.explain nuclear reactions, nuclear fission and nuclearfusion.PLEASE DO NOT WRITE IT BY HAND.Thanks.
- Q What is the maximum strength of magnet approved for medicalimaging of patients?7T5T3T1.5TWhat does precession mean?The spinning of hydrogen protons around their own axis.The change in orientation of hydrogen molecules when...
- Q Writing Prompt(s)We have seen that making a ``good guess'' can turn the problemof solving a second order linear differential equation into findingthe roots of a quadratic equation; specifically, for constantcoefficient...
- Q A transmitter of power P sits atop a radio tower broadcasting inall directions. A man standing on the ground a radial distance raway from the transmitter measures the intensity of...
- Q Question 1If the theoretical value of a quantity is 3.142, and thecalculated value is 3.146, what is the percent error? (closestvalue)Group of answer choices0.1 %0.2%0.3%Question 2In an experiment to measure...
- Q A vector has components (4,2). When the vector is multiplied bythe scalar 9, how does its magnitude and direction change?
- Q Match each passage with the title of the poem from which it istaken.\"Adored for ever be the God unseen, / Which round the sunrevolves this vast machine\"\"A crown, a mansion,...
- Q The density of sodium is 0.971 g/cm3 and it has an atomic weightof 22.9897 g/mol. Each sodium atom contributes one valence electronto the metal, so the number of electrons per...
- Q Pat, Shannon and Fido (their dog) are on a circular path 100feet around. Fido is very excited. Shannon starts walking aroundthe path maintaining a speed of 1 foot per second,...
- Q Exactly when is the electric power generated that you use inhomes in Canada?What is the underlying reason that the typical voltage of mostbattery cells is in theorder of some Volts...
- Q In a barotropic fluid, why is the change in depth dynamicallyanalogous to a change in the Coriolis parameter (i.e. planetaryvorticity)? HINT: Use the concept of the Conservation of PotentialVorticity to...
- Q 1. A typical α-decay from a parent nucleusAZX may be indicated as :Group of answer choicesAZX → (A−4)(Z − 2) Y+ 42HeAZX → (A+4)(Z+2) Y +22HeAZX → (A−4)Z Y +42HeAZX...
- Q A) An isolated spherical conductor has an excess charge of -9.8μC placed on its surface. Inside the conductor is a cavity, withinwhich is a point charge of 4.10 μC. How...
- Q Clark W. Griswold has been banned by his wife Ellen from anymore home lighting projects during the holidays… but she never saidanything about the car. Clark bought several boxes of...
- Q A star is being observed with an 8 bit CCD has a central pixelvalue of 82 counts when the exposure time is 10 seconds. What wouldthe central pixel value be...
- Q A boat with a mass of 500kg is initially moving at a speed of20m/s east (+). The kinetic friction force between the hull of theboat and the water has a...
- Q a stream of alpha particles moves with a velocity of 0.05m/sthrough a gate where a magnetic field is 1 Tesla (applied intopage)- o a o -- o o -- o...
- Q Post a one paragraph summary about how objects you use in everydaylife use some kind of modulation.Please DO NOT copy from the internet...the answer to my lastquestion was copiedAnd please...
- Q A rocket moves with a speed of 45 m / s. The rocket suddenlybreaks into two parts of equal mass that fly at speeds v1 and v2.Obtain the magnitude of...
- Q What is Brownian motion, and relate how the kinetic theoryapplies to it. Give two real-life examples where the kinetic theoryis used to our advantage or when it might be a...
- Q The most mass of our Milky Way is contained in an inner regionclose to the core with radius R0. Because the mass outside thisinner region is almost constant, the density...
- Q Synchronous communication satellites are placed in a circularorbit that is 1.88 × 108 m above the surface of theearth. What is the magnitude of the acceleration due to gravity atthis...
- Q You place a crate of mass 31.6 kg on a frictionless3.00-meter-long incline. You release the crate from rest, and itbegins to slide down, eventually reaching the bottom 1.34 s afteryou...
- Q Using powder X-ray diffraction to analyse a metal compound, asimple pattern of peaks resulted, where the largest peak existed atan angle of 2θ= 19.8°. However, when a similar sample was...
- Q Suppose you are using a multimeter (one designed to measure arange of voltages, currents, and resistances) to measure current ina circuit and you inadvertently leave it in a voltmeter mode....
- Q 1. Define magnetic north, geographic north, magnetic declinationand magnetic inclina- tion.2. What features of a solenoid change the magnetic field strength?What is the equation for the magnetic field of a...
- Q Question 6 – Audit opinions For each of the followingfour independent scenarios, indicate: • the type of audit opinionyou would express in your audit report; • the reason(s) supportingyour choice...
- Q Considering that galactic evolution requires thinking about timeperiods far beyond human experience, if our species survivesseveral billion years, where might we expect our own evolution totake us?
- Q Interpreted and discuss the difference between the workingprinciple of supercapacitor and lithium-ion battery.
- Q Why does Flame expansion occur for premixed combustion ? UseScience direct to write about this matter. 150-250 words please
- Q Please find an Oversized volumes of objects that are too bigfor the vertical scale differences they represent graph
- Q what is the principle axis of a system of particles?how can it be calculated?
- Q A 5.00 g sample of aluminum (specific heat capacity = 0.89 J°C-1 g-1) and a10.00 g sample of iron (specific heat capacity = 0.45 J °C-1 g-1)are heated to100.0 °C....
- Q What is the importance of knowing the steps involved increating an image? Why can’t the technologist just place thepatient under the collimator light and press the exposurebutton?How many different types...
- Q Discuss propulsion subsystem of a typical satellitestation?                                      A satellite uplink link has a RSL(receive signal level) of-100.57 dBW. The receiver has a 15 MHz bandwidth, and its noisefigure is 6 dB....
- Q Briefly describe an example of a possible scientific experiment,and identify both the independent and the dependent variable.please don't hand write the answer.
- Q In a young's double slit experimenta) There is no diffractionb) Diffraction is so small it is not easily seenc) Diffraction is readily apparent in the interferencepatternd) Diffraction disappears when the...
- Q Briefly discuss: (i) The operational principals and the maincharacteristics of photomultiplier tubes (PM). Why does a PM tubestill have an output signal even in absolutely dark conditions?What is affecting timing...
- Q You have been asked by your supervisors at A&L Engineeringto design a roller coaster for a new theme park. Because thisdesign is in the initial stages, you have been asked...
- Q During a relaxed walking pace, an animal's leg can be thought ofas a physical pendulum of length L that pivots about thehip.(a) What is the relaxed walking frequency for a...
- Q Your little sister wants a ride on her sled.If you are on flatground ,should you push her or pull her ?Specify the reason. Assumethe same angle in each case.
- Q Assume an airplane flew horizontally with a constant velocityand dropped one bale of hay every two seconds to a herd of cattlebelow. If the air resistance can be ignored, (a)...
- Q Fill the spaces1. In the ballistic pendulum, if the ball mass is m1 = 10g andthe block mass is 8.0kg and the height you both reach is 5.0cm, theinitial speed...
- Q 1.(a)What resolution is required to resolve the Na D lines at 589.0and 589.5 nm in first order?(b)A grating contains 1000 lines. Will it resolve two lines of1500.0 and 499.8 nm...
- Q With proper Rheological diagrams and suitableexamples for each, discuss all the different types of non-Newtonianfluids whose viscosity changes with the appliedshear rate only.(Time independent)..... the diagrams shouldbe between viscosity and...
- Q A 5 m3 tank contains superheated steam at 300°C and22500 mmHg. The tank (and the steam inside) is cooled until thepressure inside is reduced to 2 bar. At this point,...
- Q 1. Why were the two Keck 400†telescopes placed atop MaunaKea?2. What are adaptive optics designed to overcome? How is thisdone?3. Explain the basic principle and goals behind the Very...
- Q A spaceship of proper length Lp = 500 mmoves past a transmitting station at a speed of 0.83c.(The transmitting station broadcasts signals that travel at thespeed of light.) A clock...
- Q What does it normally mean if a bell curve is skewed to one sideand how does one counteract such a problem in the experiment? Bedetailed.
- Q A solid spherical shell with a 12.0 cm inner radius and 15.0 cmouter radius is filled with water.A heater inside the water maintains the water at a constanttemperature of 350...
- Q The hobo is on his way back through town on a faster train.Turns out he’s also a competent trombone player.What frequency would he actually be playing if the train isapproaching...
- Q .Construct an engaging3-paragraph paper that ties Waves and Sounds tothe real world. (no more than 500 words please) The paragraphsshould address the following points:Paragraph 1: Outline ageneral definition and description...
- Q A projectile launched from ground level lands 2.44 s later on alevel field 40.0 m away from the launch point. How many degrees isthe projectile above the horizontal?
- Q It is desired to take advantage of the current of a river comingupstream for an electric power generation project. The point wherethe turbine-generator will be installed is 50 meters below...
- Q In the Olympic shotput event, an athlete throws the shot with aninitial speed of 13.0 m/s at a 44.0 ∘angle from the horizontal. Theshot leaves her hand at a height...
- Q 5- how are the resistor currents related to the circuitcurrent?6- How are the resistor currents and resistances related?7- how are the currents in the wires related to the currents inthe...
- Q NASA has launched a mission to a newly discovered object,spherical in shape.A satellite is given a gravitationally driven circular orbitaround the object. The altitude of the satellite in its orbit...
- Q What is the magnitude of the electric field at a point midwaybetween a −7.7μC and a +6.2μC charge 10cm apart? Assume no othercharges are nearby.What is the direction of the...
- Q A very long conducting tube (hollow cylinder) has inner radiusa and outer radius b. It carries charge per unitlength ?? where ? is a positive constant withunits of C/m. A...
- Q Provide a schematic diagram of the main parts of a nuclearspectroscopy set up and describe their functions. What arecharacteristics of the Si detectors which mostly affect the energyresolution of the...
- Q A ball of mass 0.5 kg makes a head-on elastic collision with asecond ball (at rest) and rebounds with a speed equal to 0.450 itsoriginal speed. The mass of the...
- Q Consider a phase maneuver starting at Earth and ending up at theL5 point, using 1 revolution.a) Describe the phasing orbit in termsof semi-major axis, period, and distance from the sun...
- Q A homogeneous three-dimensional solid has a heat capacity atconstant volume CV that depends on temperature T. Neglectingdifferences in the transverse and longitudinal waves in the solid,there are 3N vibrational modes,...
- Q a. If the intensity of sound from a jet engine is 10 W/m 2 at adistance of 30 m, how far away from the jet do you have to be...
- Q A capacitor consists of two concentric spherical shells. Theouter radius of the inner shell is a = 0.1 m and the inner radiusof the outer shell is b = 0.2...
- Q In my physics class, we are going over the Doppler Effect. Wewere given four different equations for two differentscenarios:- When the observer is stationary but the source is moving- When...
- Q Luke Skywalker is flying his X-wing at 840 m/s down the DeathStar trench.Darth Vader is 320 meters behind him, going 740 m/s.Luke's ship is going as fast as it can,...
- Q Calculate and fill in the missing values in the tablebelowMoonDistance from JupiterPeriodIo42 hoursEuropa6.71105kmCallisto17 daysGanymede1.07106km172 hours
- Q Briefly discuss:(i) The principles of detecting thermal neutrons utilizing a Sidetector.(ii) The physics of fast neutron detection.(iii) The principle of operation of strip detectors for chargedparticle detection andtheir application.
- Q How do deep-field images contribute to our understanding of theevolution of the Universe?
- Q Describe the differences in age, color, metallicity, andlocation of Population I and Population II stars. Can you explainwhy we would expect the age, color, and metallicity of stars to beinterrelated?
- Q Create a timeline outlining the discovery (or invention) ofWorld's first solar power station opened in France (1969Energy)Directions:What is the Invention or Discovery about?What category does the Invention fall into? detail(Entertainment,...
- Q A charge of -3.00 nC is placed at the origin of anxy-coordinate system, and a charge of 2.25 nC is placed onthe y axis at y = 3.60 cm .PART...
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