Physics question and answers for October 03, 2023
- Q Two 10-cm-diameter charged rings face each other, 20.0 cmapart.Both rings are charged to + 10.0 nC . What is the electric fieldstrengthA.)at the midpoint between the two rings?B.)at the center...
- Q How does fluoroscopy work? (to answer this properly you willneed to draw a diagram and explain how it works; brief answerswon't be acceptable). Be sure to explain in detail how...
- Q 1. Before working this problem, review Conceptual Example 14. Apellet gun is fired straight downward from the edge of a cliff thatis 12 m above the ground. The pellet strikes...
- Q Derive all the velocity components in relativistic transform,starting with the Lorentz transformations.
- Q An unmarked police car traveling a constant 85 km/h is passed bya speeder traveling 139 km/h . Precisely 1.00 s after the speederpasses, the police officer steps on the accelerator;...
- Q The New York Wheel is the world's largest Ferris wheel. It's 183meters in diameter and rotates once every 37.3 min.1.Find the magnitude of the average velocity at the wheel's rim,over...
- Q 11)Two books are stacked on a table and are at rest.Hitchhiker’s Guide to the Galaxy lies on top of War and Peace whichsits on the table. War and Peace is...
- Q You are given a vector in the xy plane that has a magnitude of89.0 units and a y component of -64.0 units.A) Assuming the x component is known to be...
- Q SpeciesOutside (mM)Inside (mM)Permeability (m/s)Na+440502x10-10K+204002x10-8Cl-560504x10-8The giant squid axon has a diameter of 100μm, a membranethickness of 7.5nm, and a specific membrane capacity of 1μF/cm2.Draw a schematic of the axon, local charge...
- Q Two systems are in oscillation: a simple pendulum swinging backand forth through a very small angle and a block oscillating on aspring. The block-spring system takes twice as much time...
- Q A rock is thrown off a cliff at an angle of 46° above thehorizontal. The cliff is 120 m high. The initial speed of the rockis 21 m/s. (Assume the...
- Q Two circular disks spaced 0.005 m (0.50 cm) apart form aparallel-plate capacitor. Transferring 1.10 ×10^9 electrons fromone disk to the other causes the electric field strength to be 2.50×10^5N/C. What...
- Q Compare and contrast the resistors and capacitors, separatelycombined, in a series and parallel settings.OrDescribe house wiring and specify how parallel or seriesconnections of bulbs and resistors affect the functions.Please remember...
- Q 1. A 7.00 kg sled is initially at rest on a frictionlesshorizontal road. The sled is pulled a distance of 2.40 m by a forceof 18.0 N applied to the...
- Q Think about the length of the record groove for everyminute of music. Debate whether the record quality depends on thespeed the record turns. Given the same size record, does a...
- Q Describe the process of combustion. How do flammable materialsignite?Describe the three methods by which heat moves from one objector area to another.Explain why it is important for an arson investigator...
- Q An engine is pushed on the floor. The engine weighs 32 lbs andthe angle between it and the floor is 20°. The coeffiecient ofstatic friction is 0.50 and the coefficient...
- Q After 500 years of drifting in space and a brief visit on boardthe flagship Draconia, Buck Rogers headed to the FederalDirectorate of Earth in his spacecraft. His descent consisted ofthe...
- Q A vernier caliper consists of two scales, Main scale and avernier scale. the vernier scale is made by dividing 19 main scaledivisions into 20 parts. Least count of the main...
- Q A top-loading washing machine has a cylindrical tub that rotatesabout a vertical axis. The tub of one such machine starts from restand reaches an angular speed of 2.0 rev/s in...
- Q Two charges are located in the ?–? plane. If?1=−3.20 nC and is located at (?=0.00m,?=0.640 m), and the second charge has magnitude of?2=3.80 nC and is located at (?=1.50m,?=0.550 m),...
- Q A dipole moment, p = (2 Cm i) + (-5 Cm j) + (7 Cm k), is withinan E = (-5 N/C i) + (6 N/C j) + (3 N/C...
- Q explain how the rate of change of flux affects the inducedE.M.F. in a conductor
- Q A) What will a spring scale read for the weight of a 54-kg womanin an elevator that moves upward with constant speed 5.0 m/s?B) What will a spring scale read...
- Q Hello,I'm using Halliday and Resnick's Fundamentals of Physics, 10thedition. It has some equations in it that seem to contradict eachother. I know the problem is with me though, not the...
- Q Three resistors are connected in series across a battery. Thevalue of each resistance and its maximum power rating are asfollows: 6.6Ω and 17.2 W, 34.6Ω and 12.0 W, and 20.0Ω...
- Q Ball 1, with a mass of 159 g and traveling at 11.0 m/s ,collides head on with ball 2, which has a mass of 324 g and isinitially at rest....
- Q Use Maple to solve the problem shown below. (I know, the math ispretty easy, but that's not the point. The point is to test thecapabilities of BbLearn.) Save your Maple...
- Q A basic electrical circuit consists of a battery, a light bulb,a switch and wires connecting them. As soon as the switch isclosed, even the light bulb is one mile away,...
- Q Many chemical reactions release energy. Suppose that at thebeginning of a reaction, an electron and proton are separated by0.135 nm , and their final separation is 0.105 nm .How much...
- Q Two cars approach each other. Initially they are separated by1000 m. One car accelerates at 2 m/s^2 from rest. The other cartravels at a constant speed of 20 m/s. Draw...
- Q How can you tell if an object is charged? Explain usinginduction or conduction or friction.
- Q A particle with charge 7 µC is located on the x-axis at thepoint −4 cm , and a second particle with charge 4 µC is placed onthe x-axis at 8...
- Q Explain interactions between the following phases:a)solid-liquidb)solid-gasc)gas-liquidd)liq.1-liq.2
- Q A stone is dropped into a river from a bridge at a height habove the water. Another stone is thrown vertically down at a timet after the first is dropped....
- Q The SBD Dauntless was a dive-bomber that was used by the UnitedStates Navy during World War II. Consider one such aircraft flyingwith a velocity of 103 m/s at an angle...
- Q 1. Horses are to race over a certain English meadow for adistance of 6.4 furlongs. What is the race distance in units of(a) rods and (b) chains? (1furlong = 201.168...
- Q The arrangement in the drawing shows a block (mass = 14.6 kg)that is held in position on a frictionless incline by a cord(length = 0.599 m). The mass per unit...
- Q A physics TA pushes a 20.0 kg equipment cart at a constantvelocity for a distance of 28.0 m down the hall. The force sheexerts on the cart is directed at...
- Q (a) A 2 kg object is at the base of a 35° incline, initially atrest, and sits on top of a spring (k = 240 N/m) which is parallelto the...
- Q -How can you determine the distance to a spacecraft from thetime it takes its radio signal to reach Earth?-What do gamma rays, X-rays, light, and radio waves all have incommon?-Which...
- Q List the viewing systems for fluoroscopy. What is SNR?What would be an acceptable SNR for a fluoro viewing system? (2points)
- Q A 25-L sample of an ideal gas with ? = 1.67 is at 250 K and 50kPa. The gas is compressed adiabatically until its pressuretriples, then cooled at constant volume...
- Q Describe how to improve the efficiency of a room relatedto heat loss.Heat transfer can occur through conduction, radiation,and convection.
- Q A star of mass 7 × 1030 kg is located at <6 ×1012, 3 × 1012, 0> m. A planet of mass 9 ×1024 kg is located at <5 ×...
- Q A projectile is fired with an initial speed of 37.1 m/s at anangle of 44.2 ∘ above the horizontal on a long flat firing range.A)Determine the maximum height reached by...
- Q Ahorizontal bar length, L, weighs 6 pounds and rests at on twoscales at the left and tight ends of the bar. A box (4lb) rests 1/4way, from the left end....
- Q A wire of length L has a rectangular cross-section with height Hand width W. The wire has a hole all the way through it of area a.The wire is made...
- Q The outside diameter of the playing area of an optical Blu-raydisc is 11.75 cm, and the inside diameter is 4.50 cm. When viewingmovies, the disc rotates so that a laser...
- Q (5) Describe the consequences of a 10-km asteroid strikingEarth?
- Q A 27 g ball is fired horizontally with speed v0toward a 106 g ball hanging motionless from a 1.13-m-long string.The balls undergo a head-on, perfectly elastic collision, afterwhich the 106...
- Q Question 7 a. The radius of curvature of a plano-convex lens ismeasured to be 2 metres, and the focal length in air (n = 1) ismeasured to be 4 metres....
- Q An unmarked police car traveling a constant 80.0 km/h is passedby a speeder traveling 115 km/h . Precisely 1.50 s after thespeeder passes, the police officer steps on the accelerator;...
- Q 1. What is total internal reflection and why is it important inoptical fibers? What is the critical angle?2. Does a diverging lens have a focus point?3. What type of lens,...
- Q A sphere with a diameter of 70 cm is held at a temperature of290
- Q A 0.36-kg object connected to a light spring with a forceconstant of 23.4 N/m oscillates on a frictionless horizontalsurface. The spring is compressed 4.0 cm and released from rest.(b) Determine...
- Q As a coffee enthusiast you wish to keep your coffee as hot aspossible for as long as possible. You wish to find the rate of heatloss of a typical coffee...
- Q A 31.0-kg child on a 3.00-m-long swing is released from restwhen the ropes of the swing make an angle of 31.0° with thevertical.(a) Neglecting friction, find the child's speed at...
- Q What are the two fundamental problems of measurement?
- Q Here is a typical question which I have been asked many timeswhile giving public lectures in various places. While I know one ofthe paths like Diploma, Masters and PhD but...
- Q 1 Vince, a 180 lb athlete, performs the vertical jump test. Hisstanding reach is 82 inches, and his highest jump is 107 inches.What is his power output in Watts (1...
- Q Needing a solution to this question.5) A rope of mass m and length â„“ hangs from a ceiling. Show thatthe wave speed on the rope a distance y above the...
- Q Radio Antenna: how waves are created, through what mediums, andwhat types of waves (longitudinal or transverse) -how differentfrequencies, wavelengths, and amplitudes of waves affect theresults. -If constructive/destructive interference occurs. -Mostimportantly...
- Q A boxcar of length 10.1 m and height 2.4 m is at rest onfrictionless rails. Inside the boxcar (whose mass when empty is3600 kg) a tank containing 1700 kg of...
- Q 10. Klay Thompson has an amazingly consistent 3 point shot. Heconsistently releases from let's say 3.0 meters above the ground toenter a hoop 22 ft away (note units). The hoop...
- Q A parachutist bails out and freely falls 69 m. Then theparachute opens, and thereafter she decelerates at 2.6 m/s2. Shereaches the ground with a speed of 3.3 m/s. (a) How...
- Q For College Physics. Please explain in paragraph form. Pleasetype it out as I cannot read some written hand writingRespond to the following: In your OWN words DON'T copy from anonline...
- Q a) A child slides down a water slide at an amusement park froman initial height h. The slide can be consideredfrictionless because of the water flowing down it. Can the...
- Q An eagle is flying horizontally at 5.2 m/s with a fish in itsclaws. It accidentally drops the fish. (a) How much time passesbefore the fish's speed quadruples? (b) How much...
- Q A concrete highway curve of radius 84 m is banked at a 15.3degree angle. What is the maximum speed with which a 1500 kgrubber-tired car can take this curve without...
- Q 1. Why don’t the short circuit and open circuit voltage producepower in a p-n cell?2. The power supplied by a solar cell is proportional to itssurface area. Using the flux...
- Q 1-D KinematicsExperiment 1: Free FallIn this experiment you will drop the hex nut from differentheights. You will explore how height from which the hex nut isdropped affects its falling time...
- Q A) Sketch the position vs. time graph for the following motion.Starting at 0.5m from the detector, you moved away at a constantvelocity of 3 m/s for 2 seconds, then stood...
- Q You and a friend are riding the subway, and sit at opposite endsof the car. You both count down from five, and then clapsimultaneously, just as the train passes through...
- Q Name three types of ways corruption of science can occur.Given a scenario/example to support each way.
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