Physics question and answers for July 14, 2023
- Q Shrinking Loop. A circular loop of flexibleiron wire has an initial circumference of 167 cm , but itscircumference is decreasing at a constant rate of 14.0 cm/s due toa tangential...
- Q A projectile is launched from ground level at angle θand speed v_0 into a headwind that causes a constanthorizontal acceleration of magnitude a opposite thedirection of motion.Find an expression in...
- Q A ball of mass 2.00 kg, resting on a horizontal frictionlesssurface, gets hit by another ball of mass 1.50 kg moving in the+x-direction with a speed 4.00 m/s. After the...
- Q Discuss the following topics:1. Rotational Dynamics : Angular displacement, Angular velocity,angular acceleration.2. Rigid Body and Moment of Inertia3. Angular Momentum, conservation of Angular Momentum and Torquewith some examples of applications.4....
- Q 1. With the aid of a simple diagram: (i) illustrate howinterference is observed with Llyod's mirror apparatus. Describeexpressions to locate the minima and maxima in the interferencepattern.With the aid of...
- Q One of the most important recent discoveries in astronomy hasbeen our finding thousands of exoplanets, planets that orbit otherstars besides the Sun. When a massive planet orbits a star, it...
- Q write two pages presentation about accelerator physics.
- Q Explain hydrolysis, i.e, what types of molecules undergohydrolysis (be specific) and show equations for reactions of acid,base, and salt hydrolysis not used as examples in the introductionto this experiment.
- Q can you please describe how SHM is different from generaloscillation?
- Q 1.Cite and discuss one example of temperature dependence ofequilibrium constant in daily life.2. Cite one example of Le Chatelier principle in dailylife.
- Q At a tensile strength of 1000 MPa, the material with the lowestembodied energy istitanium alloyshigh carbon steelnickel-based superalloystungsten alloys
- Q Why are stars visible from the northern cities different fromthe stars that are visible in southern cities?
- Q Four identical masses of mass 700 kg each are placed at thecorners of a square whose side lengths are 15.0 cm.Part A) What is the magnitude of the net gravitational...
- Q As a 16,000 kg jet plane lands on an aircraft carrier, it’s tailhook snags a cable to slow it down. The cable is attached to aspring with spring constant 6.0...
- Q Free Fall on Different Worlds Objects in freefall on the earth have acceleration ay=−9.8m/s2ay=−9.8m/s2. On themoon, free fall acceleration is approximately 1/61/6 of theacceleration on earth. This changes the scale...
- Q A rescue helicopter lifts a 81.9-kg person straight up by meansof a cable. The person has an upward acceleration of 0.646 m/s2 andis lifted from rest through a distance of...
- Q 3. The angle that a wheel rotates as a function oftime \"t\" is given by θ (t) = 8.5–15.0t ^ 2 + 1.6t ^ 4 where θ is inradians and...
- Q A proton follows the path shown in figure P21.74. Its initialspeed is??=1.9∗106??.Vo=1.9∗10^6m/s.what is the protons speed as it passes through point P?
- Q The displacement of a block of mass 1.280 kg attached to aspring whose spring constant is 50 N/m is given by x = A cos ωt,where A = 12 cm....
- Q Please explain the process, test, and design of semiconductorchips.
- Q The model of a suspension from a rover, including gravity is:  my'' + cy' + ky = −gmm is the mass of the rover, c is the daming coefficient of thesuspension,...
- Q Please solve this advanced physics questionQ. What does it mean when we say that the topological structureof phase space of a two-dimensional simple harmonic oscillatorcorresponds to a \"torus\"?
- Q Two trains (on separate tracks) travel toward each other, thefirst at 60.0 km/s and the second at 40.0 km/s. Both turn on theirwhistle, the first one emitting a frequency of...
- Q What are the dominant frequencies?why dominant frequencies are present in the powerspectra(FFT)?
- Q A small block with mass0.0475kgslides in a vertical circle of radius0.0770mon the inside of a circular track. There is nofriction between the track and the block. At the bottom of...
- Q 1. Why do historical archaeology if we already havehistorical/written records? Be familiar with an example of howhistorical archaeology has either changed what we thought of thepast or added information to...
- Q In a given CRT, electrons are accelerated horizontally by 9.0 kV. They then pass through a uniform electric field E for a distanceof 3.3 cm , which deflects them upward...
- Q Please solve this non-linear physics questionQ. Choas can occur both in conservative and non-conservativesystems. Explain what the difference between them is in the aspectof choas.
- Q Exercise 5: Let's Build a Moon BasePrompt: One day in the future we will decide toestablish a colony on the Moon. Where should we put it?Analysis Directions: Make a list...
- Q What is gravitational force ...
- Q this remote sensing course.1. List the steps of image processing?2. If we are able to see beyond the visible spectrum and towardsthe infrared side of spectrum, what would we see...
- Q (c) [3] The meteoroid that created the crater was spherical andmade of rock, and it had an impact velocity of5 km/s. Assuming that energy was conserved in the collision,what was...
- Q 1. Two source, S1 and S2, are vibrating in phase andproduce waves with a wavelength of 2.5 m. The two waves overlap ata nodal point. Calculate the smallest corresponding difference...
- Q Two long, straight, parallel wires are separated by 0.50 m andlie in the X-Y plane. Wire “A†has a current of 1.4 A traveling inthe -Y direction and wire “Bâ€...
- Q A rigid tank contains 3 kg of subcooled liquid H2O at 50°C. Anelectric element in the tank is turned on until the temperaturerises to 95°C, where the H2O is now...
- Q A -4.00 nC point charge is at the origin, and a second -5.00 nCpoint charge is on the x-axis at x = 0.800 mm.a. Find the net electric force that...
- Q How long would it take from the time you feel an earthquake forit to reach another city 92.0 km away, if it shakes you with afrequency of 10 Hz and...
- Q Design a line following robot by using AT89C51microcontroller, DC motors and line sensors. Use Photo transistorsand LEDS to design a line sensor. Use DC motos and attach DC motorstoMicrocontroller by...
- Q Please solve this graduate classical mechanics question.Q. What is the physical meaning of the so-called \"generator\" ofinfinitesimal canonical transformation? (You may consider rotationor translation.)
- Q A partially filled (plastic) kettle is used to boil water.The kettle contains tap (temperature) water before it isswitched on.If the thermostat to switch off the kettle when it boils isfaulty:Q2d:...
- Q 1 A) Sketch a typical graph of friction force acting on anobject versus the applied force, which starts to move the objectfrom rest, and indicate the static and the kinetic...
- Q In the absence of friction do we expect the final velocity ofthe cart to be affected by adding mass to it? Support your answerusing energy conservation.
- Q (For the case of the hexagonal boron nitride and tungstendiselenide, show your physics reasoning on why there is a shift inthe phonon mode as the thickness of the materials reduces?)If...
- Q Give three examples of how Linux is used in distinctly differentapplications to illustrate its proliferation in a diverse range ofmodern application domains?
- Q Describe, using equations, if appropriate, the compromises youwill make when you change the aperture half angle in an SEM. Youshould discuss the signal intensity, the depth of field,aberrations and the...
- Q A curve of radius 69 mm is banked for a design speed of 76km/hkm/h .Part AIf the coefficient of static friction is 0.28 (wet pavement), atwhat range of speeds can...
- Q Many techniques exist to measure the surface energy between aliquid and a liquid or a liquid and a gas (see e.g. the wikipage).Methods to measure the surface energy between a...
- Q A rotating wheel obeys the equation theta(t)=8.9t-14.0t^2+1.84t^4 where theta is in radians and t is inseconds.What is ω at t = 4.0 s? Use 'rad/s' for your units.What is α...
- Q WHERE THE FOLLOWING COORDINATES ARE LOCATED(60 ° W, 15 ° N)(120â° W, 45â° N)(30â° E, 30â° N)(90â°E, 30â° N)(90â° W, 30â° N)(120â° W, 45â° S)-Which are on the same meridianWhich...
- Q Plot the 3-Dimensional Radiation Pattern, Plot of Azimuth andElevation radiation pattern of the Horn antenna. Simulate it forthe 100 MHz? What is the Directivity of the antennas. What is theBeam-width...
- Q Rotate the stage slightly such that the incident angle is justbelow the critical angle. Which color appears first. Why is this?How does the index of refraction depend on the wavelength...
- Q A flat surface of dimensions 2 m by 2 m that is given a totalcharge of 400 μC uniformly distributed over the surface, and wherea point charge +4 μC is...
- Q The coordinates of two spacetime events are given by (ct1, x1) =(2, 5) and (ct2, x2) = (3, 3) in an inertial reference frame K.a) Calculate the squared spacetime interval...
- Q Conducting research within 500 words on one of the followingtopicsmechanicselectricityphysics and applications of lightheat and properties of matter
- Q What is the difference between a magnetic dipole and a magneticmoment?
- Q Consider a system of ? point particles obeying quantum mechanicsconstrained to move in a two-dimensional plane (1 2-D ideal quantumgas) in a microcanonical ensemble. Find a formula for the entropy...
- Q Observations of a galaxy located 20 Mpc away give us the totalflux and the radial velocity of stars within circles on the skythat correspond to radii of 100 and 1000...
- Q -After observing all energy demonstrations listed below,write a preliminary working definition ofenergy.The energy demonstrations are:1. beaker of water brought to boil over a hot plate orstove.2. viscous heat pack (you...
- Q A mass m=4 is attached to both a spring with spring constantk=145 and a dash-pot with damping constant c=4.The ball is started in motion with initial position x0=1and initial velocity...
- Q 3. An 8 kg stone rests on a vertical spring of forceconstant 785 N / m. The stone is pushed down about 30 cm andreleased. (a) Obtain the elastic potential...
- Q A high tech company operates a satellite which can measure thesize of features on the surface of the earth. They use thistechnology to measure a particular rectangular field and find...
- Q Abrief summary about:Newton’s lawsFriction and circular movementWork-energy(kinetic and potential)-power-and conservation ofenergyFluid( pascal’s law,buyoant force,Archimedes principle, fluidflow and viscosity and bernoulli’s equation)
- Q A rock is thrown at a window that is located at a heighth = 36.33 m above the ground. The rock is thrown at anangle of θ above horizontal. The...
- Q What is drift velocity?
- Q 1-why the mobility of electron is higher than hole?2-why effective mass of hole is greater than electron?3-why are holes heavier than electrons?
- Q i am doing an internship in the physics department iwas lucky enough to actually get this internship as ive justfinished my first year. the problem is i have a very...
- Q could you take pictures of a good presentation inpower point that illustrates how you present data and do analysisfor this data especially if it was graphs?
- Q (Figure 1) shows an acceleration-versus-force graph for threeobjects pulled by rubber bands. The mass of object 2 is 0.30 kg .The graph reads: object 1 a=5 and force of 2...
- Q Prove the Hamilton-Rodrigues theorem using the finite rotationformula.
- Q When measuring signal from a radio source, we receive signalsfrom many electrons emitting arbitrary sine waves. Why do wereceive the signal from lots of electrons and why do they emitsignals...
- Q A spring with spring constant 14 N/m hangs from the ceiling. Aball is attached to the spring and allowed to come to rest. It isthen pulled down 7.0 cm and...
- Q If we recreated the scene from Fast & Furious 7 anddropped a Challenger SRT® Hellcat Redeye Widebody from a C-130aircraft at 5,280 ft, how much horsepower would it take to...
- Q A lightning bolt strikes one end of a steel lightning rod,producing a 14700-A current burst that lasts for 63 μs.The rod is 2.2 mm long and 2.3 cm in diameter,...
- Q Unpolarized light is incident on a waveguide made of a denseglass (index of refraction n2 ) that is coated with alayer of quartz (index of refraction n3). The waveguideis immersed...
- Q How to solve this question?Write down the steady flow energy equation for an open systemcontrol volume. Stating any assumptions you have made, apply thisequation toA steam boilerA nozzle                                                                                 Carbon dioxide enters...
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