Physics question and answers for September 24, 2023
- Q The potential of a particle is given as V (x) = -Vδ (x), with Vbeing a positive number. Find the wave function and energy of thebounded states of this particle.
- Q A solenoidal coil with 20 turns of wire is wound tightly aroundanother coil with 320 turns. The inner solenoid is 21.0 cm long andhas a diameter of 2.50 cm ....
- Q A continuously operating coherent Binary Phase Shift Keying(BPSK) system is made by an engineer. He claims that it is havingan average error probability of 10-5. The systemproduced 1000 errors in...
- Q Which assumption is true of an ideal gas?a. The gas has volume because the particles take up space.b. The particles experience no inter-molecular attractiveforces.c. The particles undergo inelastic collisions with...
- Q The moon has a mass of about 7.3x1022kg amd a radius of1738km.a)Calculate the escape speed from the surface of the moon.Express the answer in km/sec.b) A spacecraft of mass 250kg...
- Q A swimmer is peacefully floating motionless in a lake. Determinethe fraction of thetotal volume of her body which remains visible above the water,given that the densityof her body is 920...
- Q It seems the universe is full of angular momentum. Planetsrevolve and orbit stars, stars revolve and orbit galactic centreseven sub atomic particles spin.Yet the origin of the universe was the...
- Q 1). Explain the following issues with a short essay (with totalnumber of words less than 300)(a) Gauss law in electrostatics.(b) Ampere’s law in magnetostatics.(c) Faraday’s induction law.(d) Displacement current.
- Q Consider a two-dimensional universe where Maxwell's equationsare valid (their corresponding two-dimensional). Derive a waveequation.
- Q When an object is located very far away from a convex mirror,the image of the object is 12.0 cm behind the mirror. Using a raydiagram drawn to scale, determine where...
- Q An extremely thin sheet of glass is being inspected at thefactory. Illuminated by white light at near-normal incidence, thefilm-like sheet is 0.402 µm thick and has air on both sides....
- Q A radio antenna broadcasts a 1.0 MHz radio wave with 29.0 kW ofpower. Assume that the radiation is emitted uniformly in alldirections.What is the wave's intensity 25.0 km from the...
- Q A 336-kg crate rests on a surface that is inclined above thehorizontal at an angle of 17.2°. A horizontal force (magnitude =405 N and parallel to the ground, not the...
- Q A catapult launches a test rocket vertically upward from a well,giving the rocket an initial speed of 80.8 m/s at ground level. Theengines then fire, and the rocket accelerates upward...
- Q Three 1500 Ω resistors are wired in parallel with a 15 Vbattery. What is the current through each of the resistors?Three 1500 Ω resistors are wired in parallel with a...
- Q When do the centers of gravity and mass coincide? When theydon’t? Explain why is the center of gravity of the Flame Towers(building in Baku, lookup in google) is a bit...
- Q 1-Why doesn't the force of gravity change the speed of asatellite in circular orbit?2-A circularly moving object requires a centripetal force. Whatsupplies this force for satellites that orbit the Earth?3-A...
- Q Question 4(3pts)State the definitions of elastic, inelastic, and completelyinelastic collisions. Give an example of asituation where the final kinetic energy is greater than theinitial value.
- Q An airplane is flying with a velocity of 240 m/s at an angle of30.0° with the horizontal, as the drawing shows. When the altitudeof the plane is 2.4 km, a...
- Q PLEASE PLUG IN YOUR OWN VALUES FOR THE GIVEN PROBLEM ANDSOLVE:A projectile is fired with an upward aim from a cliff and landssomewhere away and below the cliff. You are...
- Q Obtain the equation of motion for a 1.25-g mass, at the end of aperfectly elastic spring which, when stretched 3.75 cm fromequilibrium and then released from rest, undergoes simple harmonicmotion...
- Q Please circle the answer and please make sure that it is trueanswer.1-)A physical pendulum consists of a meter stick that is pivotedat a small hole drilled through the stick a...
- Q The length of asimple pendulum is 0.79 m and the mass of the particle(the
- Q A Gaussian surface in the shape of a right circular cylinderwith end caps has a radius of 10.3 cm and a length of 64.6 cm.Through one end there is an...
- Q Please circle the answers and please make sure that it is trueanswer. Thank you.A particle executes linear SHM with frequency 0.11 Hz about thepoint x = 0. At t =...
- Q Calculate Madelung constant A for a linear chain and for NaClcrystal numerically with a personal computer by using the screenedcoulomb potential U = (+/- e^2/ r)e^-(alphar) discuss whar happenswhen alpha...
- Q Could you explain why elements with atomic numbers higher than50 have higher L-alpha and L-beta X-Ray Fluorescence than K-alphaand K-beta X-Ray Fluorescence?Thank you
- Q A quantity of N molecules of an ideal gas initially occupiesvolume V. The gas then expands to volume 2V. The number ofmicroscopic states of the gas increases in the expansion....
- Q *ratings for typed answers ONLY*Answer the following question: How would your resultsdiffer if you performed the experiment on Mars? with the giveninformation below!Using the slope of yourT2 versus L plot,determine...
- Q Attached to each end of a thin steel rod of length 1.10 m andmass 6.60 kg is a small ball of mass 1.07 kg. The rod isconstrained to rotate in...
- Q (a) List three extragalactic distanceindicators and briefly describe how they work. (b)How are they calibrated? (c) Give a principaladvantage and disadvantage of each.
- Q A long, thin solenoid has 870 turns per meter and radius 2.70 cm. The current in the solenoid is increasing at a uniform rate of64.0 A/sWhat is the magnitude of...
- Q A uniform ladder is 16 m long and weighs 240 N. In the figure,the ladder leans against a vertical, frictionless wall at heighth = 7.0 m above the ground. A...
- Q In a polarized optical microscope, under a crossedpolarized system, a sample of an anisotropic crystal is placed, andthe interference color will be changed if the state is rotated. Atthis time,...
- Q A cylindrical metal can, 0.1 m high and 0.05 m in diameter,contains liquid helium at its normal boiling point of -452.074degrees Fahrenheit. At this temperature Helium's heat ofvaporization is 20.4...
- Q 2 cylinders are connected by a horizontal tube at the bottom ofeach cylinder. Cylinder A has an internal diameter of 0.50m, while Cylinder B has a diameter of 1.50 m....
- Q A cylindrical metal can, 0.1 m high and 0.05 m in diameter,contains liquid helium at its normal boiling point of -452.074degrees Fahrenheit. At this temperature Helium's heat ofvaporization is 20.4...
- Q When calculating Work of a ball rolling down a ramp, you could useW=Fd and W=changein\"K\"to find the work done on that ball. Howeverwhat if you are not given given a...
- Q Two stationary positive point charges, charge 1 of magnitude3.55 nC and charge 2 of magnitude 2.00 nC , are separated by adistance of 53.0 cm . An electron is released...
- Q A 1.80 x 10-3 kg coin is on the outer-mostedge of a spinning turntable, which has a radius,r, of 0.250 m.μs for the coin-turntable interface is0.690.1) The speed at the...
- Q A musician in a concert hall is tuning her wind instrument. Whenshe plays a short note she hears the echo of the note return fromthe opposite side of the 50.0...
- Q A musician in a concert hall is tuning her wind instrument. Whenshe plays a short note she hears the echo of the note return fromthe opposite side of the 50.0...
- Q if fusion power were harnesed today, the abundant energy thatresults would probably sustain and even further encourage ourpresent appetite for continued growth and in a relatively fewdoubling times produce an...
- Q 1. A wheel that initially spins at 2 revolutions/sec is brakeduniformly to a stop in ½ second. How many revolutions does thewheel make while coming to a stop?2. If a...
- Q 700nm light strikes a 12,000 lines / cm diffraction grating a)determine the angular separation of the second maximum from thecenter. Explain what happens to the second one in this case.
- Q 1) A food server is holding a 2 kg food tray as shown. Estimatethe torque with respect to an axis through his shoulder exerted bythe force of the tray on...
- Q Suppose you take and hold a deep breath on a chilly day,inhaling 2.5 L of air at 0 ∘C and 1 atm.1.How much heat must your body supply to warm...
- Q A ball is thrown upward with initial velocity v0 = 15.0 m/s atan angle of 30° with the horizontal. The thrower stands near thetop of a Jong hill which slopes...
- Q 2) Operating a steady-state, a well insulated mixing chamberreceives two input liquid streams of the same substance but withtemperatures T1 and T2 and mass flow rates m ̇ 1 and...
- Q A 2290 kg car traveling at 11.7 m/s collides with a 2620 kg carthat is initially at rest at the stoplight. The cars stick togetherand move 3.30 m before friction...
- Q When you shine a laser with unknown wavelength through adiffraction grating with 1000 slits/mm, you observe the m = 1bright fringe on the screen with an angle of 26 degrees...
- Q 1-Historya-In 2-3 sentences, describe the contributions of Emilie duChatelet to physics.b-What did Robert Hooke contribute to physics?c-Who is your favorite physics person of history, and what did theydo?d-Compare and contrast...
- Q Why is the cosmic star formation history peaking at redshiftaround 2? Hint: think of which processes are more (or less) activebefore (or after).
- Q An atom in a 3d state emits a photon of wavelength 475.082 nmwhen it decays to a 2p state. (a) What is the energy (in electronvolts) of the photon emitted...
- Q what do the shubnikov-de hass oscillations describe? draw themagnetoresistance
- Q (a) Explain the Meissner effect of flux expulsion in along superconducting wire arranged with its axis parallel to amagnetic field using the differential form of Faraday law ofelectromagnetie induetion. (b)...
- Q Describe a non-deterministic two-tape TM for testing whetehr thestring on the first tape is a substring of the string in the seconda tape. choose your own test cases
- Q An object is placed in front of a lens with focal lengthf1, a second lens is placed at a distance of d from thefirst lens and has focal length f2....
- Q Given the angle of incidence and the angle of refraction, in amaterial of index of refraction n, find the speed of light in thematerial.
- Q A particular HeNe laser operating at 632.8 nm has a tube that is40 cm long. The operating gas temperature is about 130 ï‚°C.Calculate the frequency separation and the wavelengthseparation of...
- Q 1.A subway train starts from rest at a station and accelerates at arate of 2.50 m/s ^ 2 for 15.90 seconds. It then runs at a constantspeed for 35 seconds...
- Q In 2008, S. Stephen-Wales from Canada set the world record forhis age group (15-19) for climbing the 320 m vertical height empirestate building stairs. Suppose that he climbed the first...
- Q Sam, whose mass is 70kg , takes off across level snow on hisjet-powered skis. The skis have a thrust of 280N and a coefficientof kinetic friction on snow of 0.15....
- Q Daylight gets reflected from a freestanding soap film andappears reddish (wavelength = 660 nm) when observed from adirection perpendicular to the film surface. Assume a refractiveindex of n = 1.33.(a)...
- Q what is the difference between oil,mercury and redwater on barometer?
- Q Moon effect. Some people believe that the Moon controls theiractivities. If the Moon moves from being directly on the oppositeside of Earth from you to being directly overhead, by whatpercentage...
- Q Problem 3Police car is chasing a speed limit violator car with aDoppler radar installed on the roof. Suppose the speed of sound is300 m/s. When the police car has a...
- Q An inertial reference system S' moves in the x-direction atspeed υ relative to reference system S. The axis x’ slides alongthe x axis. Considering a uniform electric field in the...
- Q An electron (q=-1.602x10^(-19)C and m=9.11x10^(-31)kg) is placeat the center of an infinite uniformly charged cylinder(Ï=-0.15µC/m^(3)and radius of 5cm) with a speed of 3.2Mm/s radiallyoutward. What is the speed of the...
- Q I am taking physics lab and I can not understand the differenceof the sources of errors below:Random error in measurementRandom intrinsic errorSystematic error in measurementSystematic intrinsic errorSo, can you explain...
- Q Suppose heat is transferred at a rate of 500 W into 1 L ofwater. The water starts at 20ËšC.a) How much heat is required to raise the water temperature to100...
- Q A 2.20-m radius playground merry-go-round has a mass of 101.5 kgand is rotating with an angular velocity of 0.91 rev/s. What is itsangular velocity after a 38.4-kg child gets onto...
- Q A series of whole-body counts indicated that a worker had a bodyburden of 18 microCi of Na-24 which was cleared from his body witheffective half-life of 12 hours. Calculate: a....
- Q a) What is the greatest possible geocentric latitude of Venus,i.e., how far from the Sun can the planet be at the inferiorconjunction? Assume the orbits are circular. b) When is...
- Q Assume all temperatures to be exact, and neglect significantfigures for small changes in dimension.A diver releases an air bubble of volume 4.0 cm3 from a depthof 17 m below the...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!