Physics question and answers for October 04, 2023
- Q What would be the acceleration voltage that we have to apply inthe e/m ratio apparatus, when the current in the Helmholtz coils isequal to 2 amp, to achieve a radius...
- Q Reference : Physics for Scientistand Engineers Chapter 21.Two point charges q1 = 2 C and q2 = - 5 C are located in the(x,y) plane at coordinates (2,0) m and...
- Q Proposition.You and your friends are learning to play hockey, and you decideto use physics to get better by analyzing your movements. You areskating directly towards your friend at (5.98, 0)...
- Q You have a wire of length L = 1.7 m for making a square coil ofa dc motor. The current in the coil is I = 0.8 A, and the...
- Q Electrons are initially traveling at 2.40×106 m/s in thehorizontal direction. They enter a region between two chargedplates of length 2.00 cm and experience an acceleration of4.00×1014 m/s2 vertically upward. Find:...
- Q A nozzle with a radius of 0.16 cm is attached to a garden hosewith a radius of 0.88 cm that is pointed straight up. The flow ratethrough hose and nozzle...
- Q 1. What direction does the light polarize when striking anon-metallic surface?2.  When unpolarized light falls on two crossedPolaroids, no light passes through. What happens if a thirdPolaroid, with axis at 45...
- Q Is electric charge a discrete or continuous quantity?Explain.What fundamental particle is the most common “chargecarrier†we run into in everyday life?
- Q While driving fast around a sharp right turn, you find yourselfpressing against the car door.What is happening?What is happening?The door is exerting a rightward force on you.Centrifugal force is pushing...
- Q Question 1: In areas of enhanced heat flow,geothermal heating can be used to supply heating to homes, eitherby using ground water directly or by placing a water reservoir atdepth. In...
- Q A charge of -4 µ C is located at (x, y) = (0, 0) and a secondcharge of 2 µ C is located at x = 1. (a) Find a...
- Q Thetiming device in an automobile’s intermittent wiper system is basedon an RC circuit and utilizes a 0.500 micro-ferade capacitor and avariable resistor. A) what would be the minimum value that...
- Q A simple pendulum suspended in a rocket ship has a period T0.Assume that the rocket ship is near the earth in a uniformgravitational field.If the ship accelerates downward at 9.81...
- Q How is the path length difference calculated in objectivequestion 1 of chapter 18 (Physics for Scientists and Engineers,ninth edition)? Why is it changed by 0.2 m upon sliding the tube...
- Q Subject: Physics + EconomicsLife Cycle Diagram:1) Consider the provision of hot water using an electric waterheater fueled by electricity produced from natural gas in acentralized powerplant. Draw a process flow...
- Q A point charge q2 = -3.9 μC is fixed at the origin ofa co-ordinate system as shown. Another point charge q1 =4.5 μC is is initially located at point P,...
- Q Two 10-cm-diameter charged disks face each other, 23 cm apart.The left disk is charged to - 50 nC and the right disk is chargedto + 50 nC .A)What is the...
- Q List engineering applications of “Scalar Fields†and “VectorFieldsâ€.Explain in which courses you have learned about the applicationsof these fields.(What is a Tensor? and have you heard about Tensor fields?).Explain the...
- Q Two identical conducting spheres, fixed in place, attract eachother with an electrostatic force of 0.154 N when theircenter-to-center separation is 42.2 cm. The spheres are thenconnected by a thin conducting...
- Q Describe the possible sources of error in the experiment. How couldyou improve the experiment?
- Q What are the physics principles involved in making a pair ofpolarized sunglasses?
- Q 1. Explain one way in which the ATR spectrum of octanoic acid isdifferent from the transmission mode spectrum.2. How does ATR gives a more accurate result than TransmissionFTIR?3. Explain why...
- Q Newton's second law states that net force is equal to mass timesacceleration. Provide examples of how this law can be witnessed ineveryday life and explain why this law is important...
- Q An electric vehicle starts from rest and accelerates at a rateof 2.1 m/s2 in a straight line until it reaches a speed of 17 m/s.The vehicle then slows at a...
- Q A rocket is launched at an angle of 53.0° above the horizontalwith an initial speed of 103 m/s. The rocket moves for 3.00 s alongits initial line of motion with...
- Q (a) Have you ever visited an amusement park and taken a ride ona parachute drop ride? These types of rides take thepassengers to a great height, and then drop them...
- Q 5. (IB) An ideal gas at an initial pressure of 4.0 × 105 Pa isexpanded isothermally from a volume of 3.0 m3 to a volume of 5.0m3.a) Calculate the final...
- Q (i)How much negative charge and how much positive charge arethere on the electrons and the protons in a cup of water (0.25 kg)?Note Avogadro’s number is NA = 6.022 ×...
- Q Given an infinite sheet of charge occupying the x-y plane suchthat the charge density is constant and uniform, find the electricfield at any point on the z-axis by:A) Using the...
- Q A proton is traveling horizontally to the right at5.00×106 m/s .Find (a)the magnitude and (b) direction of the weakest electricfield that can bring the proton uniformly to rest over a...
- Q Briefly describe three different sound processing schemes usedto modify received sound signals before they are sent to a cochlearimplant.
- Q Briefly explain the diffraction of a circular aperture. Draw arough sketch showing a circular aperture and the fringes on thescreen. What type of fringes do you expect? Is the central...
- Q A 0.74-m aluminum bar is held with its length parallel to theeast-west direction and dropped from a bridge. Just before the barhits the river below, its speed is 25 m/s,...
- Q compare the intensity of a 100 W light bulb while youare reading a book to the intensity of the sun. what assumptionswere made ?
- Q Aferris wheel is 250 ft in diameter and us boarded from a platform15 ft high. T=0 when the wheel is at uts maximum height. The wheeltakes 5. mins to make...
- Q a.) A particular patch of a vegetable oil (n=1.30) floating inwater (n=1.33) is 530 nm thick. What is the longest wavelengthwhich will undergo constructive interference on reflecting from thesurface?b). For...
- Q examples of the thermodynamics and itslaws.- Where do we use these laws?- The textbook talks about Heat Pumps, Refrigerators,and so on. Can you come up with some of its uses?
- Q An infinite plane slab of thickness 2H has a uniform chargedensity p , where z is defined to be at the center of the slab. Inthe z direction, the slab...
- Q Max travels to the star proxima centauri 4.2ly awayand returns immediately. He claims that the entire trip took just 8years. How fast did he travel ?  ( specialrelativity)
- Q Gayle runs at a speed of 3.95 m/s and dives on a sled, initiallyat rest on the top of a frictionless snow-covered hill. After shehas descended a vertical distance of...
- Q A star has a surface temperature of 10,000 Kelvin and a radius 3times that of the Sun. If the apparent magnitude of the star is11.5, what is the distance to...
- Q Ruthenium-106 (106Ru) is used to treat melanoma in the eye. Thisisotope decays by ?
- Q Create an equation for the velocity of a particle at any time t,stating the initial position, which cannot equal 0. The equationmust include all of:• Rational function• Trigonometric functiona. Determine,...
- Q [Typed answers please]1. Write a paragraph explaining why Seasons occur on theEarth.2. In a short paragraph, explain how Newton’s Law of Gravitydepends on mass and distance. Don’t just write the...
- Q In the late 1960s, John and Leonid raced from the Earth to theMoon at relativistic speeds. According to the judges on the Moon,John finished the race first with a time...
- Q An SUV with a mass of 1.80
- Q The terminal voltage across a single phase of a stepper motorused as a generator is applied across a load resistor of 33 ohms.This terminal voltage has an amplitude of 18.7V...
- Q A line of charge is placed on the x-axis between x = -5 m and x= 5 m . The linear charge density is -10 microcoulomb per cm .Consider a...
- Q (a) An unstable particle with a mass equal to 3.34 ✕10−27 kg is initially at rest. The particle decays intotwo fragments that fly off with velocities of 0.977c and−0.851c, respectively....
- Q Two very large, nonconducting plastic sheets, each 10.0 cmthick, carry uniform charge densities σ1,σ2,σ3and σ4 on theirsurfaces, as shown in the following figure(Figure 1). These surfacecharge densities have the values...
- Q A Gaussian surface in the shape of a right circular cylinderwith end caps has a radius of 15.0 cm and a length of 89.7 cm.Through one end there is an...
- Q 1. The constant force (3 î - 8 ĵ - 11 ƙ ) N is applied over adisplacement (6j - 7ƙ) m. What is the work done by this forceduring...
- Q A mass weighing 12lb stretches a spring 10in. The mass isattached to a viscous damper with damping constant 3lbâ‹…s/ft. Themass is pushed upward, contracting the spring a distance of 2in,and...
- Q what factors do you think may cause the experimental value to bedifferent from the accepted value
- Q The figure shows a 11.8 V battery and four uncharged capacitorsof capacitances C1 = 1.16 μF,C2 = 2.31 μF,C3 = 3.26 μF, and C4 =4.19 μF. If only switch S1...
- Q A 49.6 g marble moving at 3.99 m/s strikes a 13.6 g marble atrest.A) What is the speed of the initially moving marble immediatelyafter the collision?2.2728 m/sB)What is the speed...
- Q INTERPRETING THE REAL LIFE STORY: Diego’s ExperienceMy fitness and wellness class motivated me to try to quitsmoking, again! It wasn’t anything new, because I had tried severaltimes before. I had...
- Q The control panel on a spaceship contains a light that blinksevery 1.81 s as observed by an astronaut in the ship. If thespaceship is moving past Earth with a speed...
- Q A mass m = 85 kg slides on a frictionless track that has a drop,followed by a loop-the-loop with radius R = 18.9 m and finally aflat straight section at...
- Q How would gravitational mass and inertial mass change in anelevator (if at all)? Why is this true?
- Q An atom is in a time independent one-dimensional potential well.The system's spatial wave function at t=0 is Ψ(x,0) = Ax(a-x) for0<x<a and zero for all other x. (a) The system's...
- Q A -10.0 nC point charge and a +20.0nC point charge are 13.5 cmapart on the x-axis.Part AWhat is the electric potential at the point on the x-axis wherethe electric field...
- Q How much thermal energy (in kcal) is required to change a 48 gice cube from a solid at - 14.6 oC to steam at 10.8 oC aboveboiling?
- Q Charges 3 micro coulombs and -6 micro coulombs are placed 5cmfrom each other. Find where the electric field equals 0 and wherethe electric potential is zero
- Q Two narrow slits 60 μm apart are illuminated with light ofwavelength 500nm. The light shines on a screen 1.2 m distant. Howfar is this fringe from the center of the...
- Q A certain super capacitor has a capacitance of 1.0F. The maximumvoltage is 2.7 V. It is contained in a 8.00mm diameter can that is13.00 mm long. It has two leads...
- Q A skier is skiing downhill at constant speed. The slope isinclined at 10o with respect to the horizontal. Theskier’s mass is 65 kg, what is the value of the coefficient...
- Q The Human Eye THE HUMAN EYE: While digital camera form imageswith pixels, the human eye forms images with rods and cones thatlie on the retina. If two point objects close...
- Q How does rotational inertia play a role when a quarterbackthrows a ball so that it spirals in flight? What about a figureskater spinning about her axis of symmetry with her...
- Q Let's return to Interstates 80 and 680 in rural Iowa, courtesyof Google Earth. (Open Google Earth using the same file as in thePre-Lab, Interstate_80_in_Iowa.kmz. (Do it thesame way you did...
- Q 4. In the comics and movies, the Incredible Hulk often travelsgreat distances by making huge leaps. According to Marvel.com, theHulk is capable of leaping a horizontal distance of up to...
- Q E=1/2 CV^2 E= 1/2 (164 microF) (10^-6 F) (119 V)^2 E= 1.168 JHow do you figure out the J from the F V^2 Â Â
- Q A) A common practice for a person with a high fever is to take abath in cool water. Assuming an 80 kg person is really ill andneeds to cool down...
- Q Write down Maxwell's equation in three different unit systems. (SI,Gaussian, Heaviside)
- Q You have two conducting plates with nothing in between them.Using a voltmeter, you measure the voltage difference between theplates to be 465 V. You release an alpha particle with mass...
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