Physics question and answers for August 06, 2023
- Q Algunos espejos nos dan imágenes reales, virtuales, más grandes,más pequeñas, dependiendo de donde se ubiquen los objetos y de lascaracterÃsticas del espejo. La amplificación de cierto espejo es2.5 para algún...
- Q 2a. Confirm that the position andmomentum, p=-℠∂/∂x, operatorsdo not commute.2b. Show how the statement abovelimits the ability for a state that to be both an eigenstate ofposition and momentum...
- Q Calculate how far apart an electron and a proton would have tobe for their electric force to be equal in magnitude to theirgravitational force in a hydrogen atom (a distance...
- Q It is given that M = 185 kg and R = 1.65 m.What if an inner solid cylinder is cut out from it, with a radiusof (1/2)R?a) What is the...
- Q Using the wave functionsψ0(x) =A'eik0x+B'e−ik0x    x < 0ψ1(x) =C'eik1x+D'e−ik1x    x > 0for the potential energy step, apply the boundary conditions ofψ anddψ/dxto find B' and C' in terms of A', forthe potential...
- Q A -3.00 nC point charge is at the origin, and a second -5.50 nCpoint charge is on the x-axis at x = 0.800 m.Q1: Find the net electric force that...
- Q Two charges, +9 µC and +15 µC, are fixed 1 m apart, with thesecond one to the right. Find the magnitude and direction of thenet force (in N) on a...
- Q A 1.20 kg iron cube at 343 K is placed in contact with olive oilat 283 K in a thermally insulated container. The specific heat ofiron and oil is 450...
- Q A solid S occupies the region of space located outside thesphere x2 + y2 + z2 = 8 and insidethe sphere x2 + y2 + (z - 2)2 = 4.The...
- Q A thin-walled capillary tube (diameter=5mm, length=1m) carriessteam at 100degreesC The capillary is covered by a later ofinsulation (thermal conductivity=0.10W/mK) and thickness delta.Assume that the heat transfer coefficient in the outside...
- Q how to solve the curvilinear motion in rocket
- Q Compute the relative probability of finding an electron at thebottom of the conduction band relative to the probability offinding an electron at the top of the valence band in a...
- Q Explain why gravitational lensing is not a great way to discoverlarge numbers of extrasolar planets given our current resources andtechnology. Also explain how, if you were determined and had accessto...
- Q explain how a ray of light can guide inside of a graded-index fiberoptic, and compare and contrast this with how a light ray is guidedinside of a step-index fiber
- Q Suppose a sinusoidal wave on a string, having amplitude A andtravelling in the −xˆ direction, is partially reflected at thepoint x = 0, so that the reflected wave is in...
- Q A)A mass weighing 16 pounds stretches a spring 8/3 feet. The massis initially released from rest from a point 4 feet below theequilibrium position, and the subsequent motion takes place...
- Q I need rapport about Waves and (difine ,types,equation ,conditions )of the waves and explain what's the differentbetween wave phase velocity and group velocity...use goodhandwritten ...report not less than 3 pages..
- Q A tennis ball is it at ground level. The ball reaches itsmaximum height above the ground level 1 sec. after being hit. Then0.9 seconds after reaching its maximum height, the...
- Q 2/ when we say that the eight official IAU planets have orderlymotions, what do we mean?A/ we mean that they all orbit the Sun in the same big circle,all in...
- Q How would you know define one to one correspondence when talkingwith the parents?
- Q A) List two reasons (other than the expected errors in thedimension meaurements) why your measured value for the density ofsteel may differ from the accepted valueB) List two reasons that...
- Q A car driver has rear ended a truck but claims he was drivingthe speed limit before hitting the brakes. The driver left a 50mlong streak of tire rubber when he...
- Q Prove that (cos x + isin x) n = cos nx + isin nx. (Hint: UseEuler’s formula).
- Q A student working in the physics laboratory connects aparallel-plate capacitor to a battery, so that the potentialdifference between the plates is 225 V. Assume a plate separationof d = 1.27...
- Q [13 marks total](a) [1] Suppose on the Moon, a meteoroid creates a crater in theshape of a hemisphere with a radius of 1 km.Calculate the mass of material excavated, assuming...
- Q EfficiencyAn ideal diatomic gas is used in a reversible heat cycle. Thegas begins in state A with pressure 100 kPa, temperature300 K, andvolume 0.50 L. It first undergoes an isochoric...
- Q A block with a mass M is attached to a horizontal spring with aspring constant k. Then attached to this block is a pendulum with avery light string holding a...
- Q Show by direct computation that the impulse momentum theorem andthe work-energy theorem are invariant under the Galileitransformation.
- Q Three point charges, q, 2q, and 3q, are at the vertices of anequilateral triangle of sides a. If q= 15.8 nC and a= 11.1 cm, whatis the magnitude of the...
- Q A 2000-kg car is traveling at 20 m/s on a horizontal road andthe engine suddenly is broken down. The brakes immediately areapplied and the car skids to a stop in...
- Q in200 words or more (please no less), What are the effects on thematter when gamma rays are interacted with matters by pairproduction process?
- Q Why was it unnecessary to connect the ground alligator clip inthe Oscilloscope experiment
- Q A projectile is shot directly away from Earth's surface. Neglectthe rotation of the Earth. What multiple of Earth's radius RE givesthe radial distance (from the Earth's center) the projectilereaches if...
- Q Pump A has HA= -2.15E-4×GPM2+0.015 ×GPM + 250, and pump B has Hb=-2.95E-4×GPM2+0.020×GPM + 210. These two pumps are combined inparallel. What is the head produced by these pumps in...
- Q Consider a finite square well, with V = 1.2 eV outside.It holds several energy states, but we are only interested intwo:E1 = 1.15 eVE2 = 1.1 eV1) For E =...
- Q please answe these 2 topicTopic 1: Electromagnetic WavesElectromagnetic waves differ from mechanical waves in thatthey do not require a medium to propagate. This means thatelectromagnetic waves can travel not only...
- Q two manned satellites approaching one another at a relativespeed of 0.100 m/s intend to dock. the first has a mass of 3.50x10^3 kg, and the second a mass of 7.50...
- Q Question 2: You want to determine if there are any Kuiper Beltobjects larger than Eris.Part a: Describe the observational methods and analysis youwould apply to search for them.Part b: How...
- Q A roller coaster reaches the top of the steepest hill with aspeed of 6.8 km/h . It then descends the hill, which is at anaverage angle of 35 ∘ and...
- Q A wheeled cart (frictionless), a solid cylinder of radius r, asolid sphere of radius r, and a hollow cylinder of radius r are allallowed to roll down an incline. Derive...
- Q A projectile is shot from the edge of a cliff 115 mm aboveground level with an initial speed of v0v0 = 65 m/sm/s at an angleof 35.0∘∘ with the horizontal,...
- Q Resistors connected in series generally alwaysselect all that apply1dissipate more power than when hooked up in parallel2offer the biggest effective resistance compared to any other wayof connecting them3dissipate the same...
- Q Choose one type of electromagnetic radiations, specify the rangeof wavelengths for this type and give one application in oureveryday lives and explain it (Minimum five lines) ØŸ
- Q Question 4: Alpha Centauri is a binary star system (the twoindividual stars are called Alpha Centauri A and B) that is part ofa triple star system (the third star is...
- Q Sketch and describe how a Pole Figure is constructed. Whichreference frames are related in a Pole Figure
- Q Classical Mechanics problem:Derive the expression for the total energy E(t) of anunderdamped oscillator as a function of time.
- Q can someone explain how weight training can be modeledin a graph?,
- Q The figure represents an insect caught at the midpoint of aspider-web thread. The thread breaks under a stress of 9.2 × 108N/m2 and a strain of 2.00. Initially, it was...
- Q An elevator (1500 kg mass, with passengers) is attached to a1000 kg counterweight by a cable that is wrapped over a pulley. Itis also attached (by a second cable) to...
- Q A measuring cylinder made of glass has a volume of 200 mL whenmeasured at 20°C. Mercury, also at 20°C, is added to the measuringcylinder until the mercury level reads 197...
- Q An insulating sphere with radius R1 and density by uniformcharge Ï1 is placed in the center of a thin shell spherical withradius R2 and surface charge density uniform σ2. Here...
- Q in200 words or more (please no less), Discuss interaction of gammarays with matter by pair production process ?
- Q A sturdy, sealed container contains 0.2 moles of helium gas. Itis initially sitting in a room at 20 °C, and the pressure of thegas is observed to be 200 kPa....
- Q In class we showed that hot air at atmospheric pressure is lessdense than cooler air at the same pressure.Because of this difference hot-air balloons can stay aloft.Assume that you have...
- Q Derive the Beats using trigonometric identity , and explainabout the envelope and \"carrier\"Draw a diagram of waves going in and out of the phase
- Q Masses coupled through springs is a model for the behavior ofatoms in a crystal. Consider a one-dimensional crystal, what if wehave a crystal made of two kinds of atoms with...
- Q Neutrons are born out of fission at a high energy and must beslowed down to the low energy region, called the “thermal energyâ€region, to cause another fission. A material called...
- Q The plates of an isolated parallel plate capacitor with acapacitance C carry a charge Q. The plate separationis d. Initially, the space between the plates contains onlyair. Then, an isolated...
- Q A bullet is fired through a board 10.0cm thick in such a waythat the bullet’s line of motion is perpendicular to the face ofthe board. If the initial speed of...
- Q Aperson walks into a room that has, on opposite walls, two planemirrors producing multiple images. Find the distances from theperson to the first three images seen in the left-hand mirror,...
- Q A neutron in a nuclear reactor makes an elastic, head-oncollision with the nucleus of a carbon atom initially at rest. (a)What fraction of the neutron's kinetic energy is transferred to...
- Q Question 1:(a) A gymnast jumps from a platform at vertical positionsy = 1.0m above a trampoline at sy = 0 m. Thegymnast’s vertical velocity atthe moment when she leaves the...
- Q Consider if you were to vary thenumber of washers suspended on the end of the string, how wouldthis affect the centripetal force? How would increasing the numberof washers at the...
- Q (a) What is the magnitude of the tangential acceleration of abug on the rim of a 12.0-in.-diameter disk if the disk acceleratesuniformly from rest to an angular speed of 77.0...
- Q A heavy sled is being pulled by two people as shown in thefigure. The coefficient of static friction between the sled and theground is μs = 0.571, and the kinetic...
- Q An airplane is heading due south at a speed of 680 km/h .A. If a wind begins blowing from the southwest at a speed of 90km/h (average), calculate the velocity...
- Q A charge q1 = 5.00 nC is placed at the origin of anxy-coordinate system, and a charge q2 = -4.50 nC is placedon the positive x axis at x= 4.00...
- Q A rod AB with A at the origin rotates suchthat the angle between the rod and the x?axis is theta = pi (8t
- Q Let’s talk about spinning plates! A juggler wants to perform a trick where he will spin three platesas long as possible. Suppose that a plate of type k starts the...
- Q - Acharge of 22 nC is uniformly distributed along a straight rod oflength 13 m that is bent into a circular arc with a radius of 5.6m. What is the...
- Q Solar energy is an alternative to fossil fuels for providingelectrical power for both homes and businesses. It may be locallyproduced and used at the same location as the panels, which...
- Q You have been employed by the local circus to plan their humancannonball performance. For this act, a spring-loaded cannon willshoot a human projectile, the Great Flyinski, across the big top...
- Q A disc with radius 0.060 m and rotational inertia 0.061 kg.m^2has a rope wrapped around its parameter. The other end of the ropeis holding a 0.20 kg mass. The mass...
- Q A girl swings back and forth on a swing with ropes that are4.00m long. The maximum height she reaches is 2.10m above theground. At the lowest point of the swing,...
- Q A girl of mass mG is standing on a plank of mass mP. Both areoriginally at rest on a frozen lake that constitutes africtionless, flat surface. The girl begins to...
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