Physics question and answers for August 01, 2023
- Q Derive the four equations of stellar structure as a function ofM
- Q Which of the following statements are true for magnetic fieldlines? Check all that apply.A.) Magnetic field lines are close together inregions of space where the magnitude of the magnetic field...
- Q Two 2.5-mm-diameter beads, C and D, are 11 mm apart, measuredbetween their centers. Bead C has mass 1.0 g and charge 1.8 nC.Bead D has mass 2.5 g and charge...
- Q Given that the average number of fast neutrons emitted followingthe thermal-neutron induced fission of 235U is 2.42 per fissionevent; use the following data to calculate the mean number offission neutrons...
- Q Four lawn sprinkler heads are fed by a 1.7 cm diameter pipe. Thewater comes out of the heads at an angle of 40 ∘ to the horizontaland covers a radius...
- Q Which of the following statements is true?Select the correct answera.NONE OF THE STATEMENTS ARE TRUEb.Electric forces depend on velocity of a charged objectc.Objects having a net charge experience only electric...
- Q 1. A uniform disk of mass M = 5.00 kg andradius r = 24.0 cm is mounted on a motor throughits center. The motor accelerates the disk uniformly from rest...
- Q The loop is in a magnetic field 0.22 T whose direction isperpendicular to the plane of the loop. At t = 0, the loophas area A = 0.285 m2.Suppose the...
- Q a. Why is hip movement and turning the knees important inimproving a golf swing?b. During the back swing, are you accelerating?c. At the moment you reach the bottom of the...
- Q A 590-kg satellite is in a circular orbit about Earth at aheight above Earth equal to Earth's mean radius.(a) Find the satellite's orbital speed.m/s(b) Find the period of its revolution.h(c)...
- Q A 10-cm-long thin glass rod uniformly charged to 8.00 nCnC and a10-cm-long thin plastic rod uniformly charged to - 8.00 nCnC areplaced side by side, 4.50 cmcm apart. What are...
- Q Part CRefer back to example 9-12. A bullet with a mass of m=8.10gm andan initial speed of vi=320m/s is fired into a ballistic pendulum.What mass must the bob have if...
- Q Use a table to compare the characteristics of pulse, MSV, andcurrent mode operations as they are applied in radiationmeasurement system. (Lists the advantages and disadvantages ofeach)
- Q An object moves along a straight line. The position as afunction of time is given by the following22 formula x(t)=5m+(2m/s)t–(0.6m/s)t^2. Please answer all of theparts, I will give a good...
- Q 1.Describe the Velocity vector and Acceleration vector of ball beingthrown straight up in the air and then coming back down.2. A tennis ball is being swung around in a circle...
- Q Suppose we have the following vectorial equation c = na x bwhere n is a constant, and c, a, b are vectors Givens n = -1 a = 2i– ja)...
- Q in this problem we are interested in the time-evolution of thestates in the infinite square potential well. The time-independentstationary state wave functions are denoted as ψn(x) (n = 1, 2,...
- Q If I have a positively charged surfaceand bring it near to a plasma, what would happen? Will both theelectrons and protons behave in the same way? (compare theiraccelerations).
- Q Design a carefully scaled and drawn Minkowski diagramdepicting two reference frames P (x and t) and Q (x' and t') with Qmoving at a speed of 0.6c in the positive...
- Q at the beginning, a stagnant bomb explodes and breaks into 3pieces.in this case a)is linear momentum maintained?please explain.b) is kinetic energy conserved? please explain.
- Q On a planet, the acceleration due to gravity is only 7.2m/s2. A person living on that planet throws a footballat 10 m/s at an angle of 48 degrees to the...
- Q Explain the method of determining the charge-to-mass ratio (e/m)in the Thomson experiment.
- Q An interstitial in the lattice structure puts the surroundingbonds lattice in tension or compression? How does this stressaffect movements of dislocations? Use figures/schematics toexplains.
- Q Explain the model of blackbody. Present and explain Wien’s andStefan’s laws regarding the blackbody radiation. Explain Planck’shypothesis of energy quanta.
- Q what is the angular separation between a star at Right Ascension6hr and Declination 60 degrees and another star at Right Ascension0hr and Declination 60 degrees? and also please explain what...
- Q Derive the barometric formula which shows in an isothermalatmosphere the pressure as a function of height.
- Q Choose the correct answer/s.1.) In an interference experiment, monochromatic light from alaser is passed through two parallel slits separated byd.  An interference pattern is formed on thescreen placed at a distance...
- Q an 10 kg object is hung from a spring attached to a fixedsupport. The spring constant of the spring is k=40 Nm**(-1) (I meanto the power of -1) Suppose an...
- Q cantwo satellites with different masses have the same orbit around theearth?
- Q 1-What four physical factors affect the resistance of a wire?2-A wire of uniform cross-section has a resistance of R.What would be the resistance of a similar wire, made of the...
- Q A wood stove is used to heat a single room. The stove iscylindrical in shape, with a diameter of 40.0 cm and a length of50.0cm and operates at a temperature...
- Q A massless rod of length L = 2.3 m stands up straight, fixed tothe ground by a bolt. A horizontal force of 8.2 N is applied at avertical distance of...
- Q Powder specimens of three different monoatomic cubic crystalsare analyzed with a Debye-Scherrer camera. It is known that onesample is fcc, one is bcc, and one has the diamond structure. Theapproximate...
- Q A vehicle (truck A), with a mass of 1800 kg, is tested forsafety at a lab by having another vehicle (truck B) crash into itfrom behind. Initially, Truck A is...
- Q Mrs. Cunningturkey works at Mabash College as an executiveassistant to the universally reviled President Less. President Lessis widely known to care nothing about students, and every daychooses a random student...
- Q a) Identify two attractive forces at work in an atom, andidentify the kinds of particles each force acts between.
- Q Using appropriate fundamental therems of vector calculus derivemacroscopic Maxwell's equations from microscopic equations withevery detail.
- Q A farm truck moves due north with a constant velocityof 12.00 m/s on a limitless horizontal stretch of road. Aboy riding on the back of the truck throws a can of soda...
- Q In your own words, explain magnetic fields, forces, and giveexamples in daily life.In your own words, explain the workings of direct currentmotors.In your own words, explain current loops and solenoids.
- Q Describe why some stars, such as white dwarfs and neutron starsbecome degenerate. What are the two fundamental physics principlesthat underpin the concept of degeneracy?
- Q On a scale where the Sun is about the size of a grapefruit (7centimeters) and the Earth is about 15 meters away, how far awayfrom Earth is the nearest star?...
- Q COURSE: Material Physics3. In the process of producing ceramic powder, mesh is oftenused as a unit of measure for powder. Explain the meaning of themesh! How do you get powder...
- Q What total capacitances can you make by connecting a 4.14 µF and8.81 µF capacitor together?series ____µFparallel____ µF
- Q 2) A merry-go-round has a radius of 1.75 m and a rotationalinertia of 600 km-m2. A child pushes the merry-go-round with aconstant force of 102 N applied at the edge...
- Q Blocks A (mass 4.00 kg ) and B (mass 7.00 kg ) move on africtionless, horizontal surface. Initially, block B is at rest andblock A is moving toward it at...
- Q An electric field given by E→ = 1.7î -1.8(y2 + 8.4)ĵ pierces the Gaussian cube ofedge length 0.180 m and positioned as shown in the figure. (Themagnitude E is in...
- Q You shine a laser on a plastic prism made from an unknownmaterial and measure the angles relative to the normal that thelight takes both inside and outside the medium. You...
- Q A)The mass of the Moon is 7.4 × 1022 kg, its radiusis 1.74 × 103 km, and it has no atmosphere. What is theacceleration (in m/s2) due to gravity at...
- Q 25. If the following waves are superposed y1 = A Cos[k x – w t]and y2 = A Cos[k x + w t] where A = 0.2 cm, f =...
- Q Doppler spectral line broadening is caused by the fact that thevelocity of atoms or molecules relative to the observer follows aMaxwell distribution. The effect is dependent on temperature. Henceit serves...
- Q 1) A 1000 kg rocket travels in outer space at 5000 m/s. Therocket then separates into two sections: a 250 kg section thattravels at 8000 m/s, and a 750 kg...
- Q Determine if the following requirements for a wet well controlsystem, are consistent:a) If the pump is on then the valve shall be open.b) If the valve is closed then the...
- Q A generator rotates at 93 Hz in a magnetic field of 0.035 T . Ithas 650 turns and produces an rms voltage of 140 V and an rmscurrent of 55.0...
- Q A very long solenoid with a circular cross section and radiusr1= 1.40 cm with ns= 300 turns/cm lies insidea short coil of radius r2= 4.40 cm and Nc= 30turns.If the...
- Q *define convection*list three examples in the world around you whereconvection currents are important. Give a short description ofeach.
- Q Water heaterIn a water heater, tap water with the temperature 10degrees celcius is heated to 60 degrees celcius. For a shower, atotal of 20 litres of water is used. Water...
- Q what is eddy current.explain minimum in 100 words.
- Q Explain how the various magnetic measurement methods depend on thelaws of electromagnetism.
- Q In a plant density by: 0.97 KGM/s and viscosity 0.03 KGM / swith a pipeline from tank to tankhe's being transported. The pipe used in the line is made ofcast...
- Q All of the following is an example of random errorexceptGroup of answer choicesPoor thermal contact between thermometer and object beingmeasured.Vibrations in air current when measuring massInconsistent environmental temparatureIrregularities in the...
- Q You are working with a team designing capacitors for specializedpurposes. One client needs a capacitor shaped like a sphere thatcan store the most energy for its size. You are to...
- Q Enter the data from the table below into Microsoft Excel anddetermine the linear correlation coefficient, R2 for time versusposition.Then, calculate y/t and determine the linear correlationcoefficient, R2 for time versus...
- Q Part b.A thin hoop of mass 22 kg and radius 1.5 m rolls down an inclinethat is 4 meters tall. What is the velocity of the thin hoop at thebottom...
- Q Make an essay of 2-3 paragraphs and discuss the nature of anexponentially growing quantity. Describe its characteristics.Discuss population growth as an example. Discuss the impact ofpopulation growth on the demand...
- Q (a)In reaching equilibrium, how much heat transfer (in J) occursfrom 1.00 kg of water at 40.5°C when it is placed in contact with1.00 kg of 23.0°C water?J(b)What is the change...
- Q An object on a single oscillating string may bemodelled by differential equation x\"(t)=-x(t)x(t) is the signed length of the string at time t.a) the trivial solution x(t) =0 satisfies thedifferential...
- Q A small bullet of mass m=0.24kg andspeed v=17.8m/s embeds in a block of massM=0.75kg suspended by a massless stringof length L, after a collision as shown in the figure. If...
- Q Three people pull simultaneously on a stubborn donkey. Jackpulls eastward with a force of 76.9 N, Jill pulls with 70.9 N inthe northeast direction, and Jane pulls to the southeast...
- Q An electron in a television picture tube travels at 3 × 107 m/s.Does the earth’s gravitational field or its magneticfield exert the greater force on the electron? Assume v isperpendicular...
- Q what is the significance of enthalpy ? Why have weproposed thermodynamic potentials like enthalpy?
- Q A 10.0 g object moving to the right at 15.0 cm/s makes anelastic head-on collision with a 15.0 g object moving in theopposite direction at 33.0 cm/s. Find the velocity...
- Q Consider a “system with two lenses in tandemâ€. Suppose that youhave an object that is located P1to the left of a lens with F1focal length. Then suppose that you have...
- Q 1. If you compress a spring of spring constant 223 N/m by 1.29cm, what is the elastic potential energy of the spring?2. You have a piano of mass 1,946 kg,...
- Q The following are the load and gage lengths from a stainlesssteel. The diameter of the bar is 0.506 inch. Plot engineeringstress versus engineering strain for the data shown. Find the...
- Q construct and solve a 2 dimensional projectile problem. showall your work
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!