Physics question and answers for September 13, 2023
- Q A mass weighing 16 pounds stretches a spring 8/3 feet. The massis initially released from rest from a point 2 feet below theequilibrium position, and the subsequent motion takes place...
- Q A 2.25
- Q Which of the following methods of generating electricity is theonly one that does NOT rely on Faraday's law of electromagneticinduction?A. Wind turbinesB. Nuclear power plantC. A conventional fossil fuel power...
- Q Briefly describe what a wavefunction is. Use the term “boundarycondition†in your answer. State 2 properties of wavefunctions.Give 2 examples of physical systems that would be described bywavefunctions.
- Q During launches, rockets often discard unneeded parts. A certainrocket starts from rest on the launch pad and accelerates upward ata steady 3.05 m/s^2 . When it is 260 m above...
- Q A mortar* crew is positioned near the top of a steep hill. Enemyforces are charging up the hill and it is necessary for the crew tospring into action. Angling the...
- Q An extremely small sample of an ideal diatomic gas (with a molarmass of 28 g/mol) has the following distribution of molecularspeeds: 1 molecule moving at 100 m/s, 2 molecules at...
- Q An insulated Thermos contains 145 g of water at 70.7 ËšC. You putin a 11.0 g ice cube at 0.00 ËšC to form a system of ice + originalwater. The...
- Q Small charged spheres are arranged as follows:DescriptionMagnitude of Chargex (cm)y (cm)Plastic sphere that was rubbed with wool4.1 nC2.70Glass sphere that was rubbed with silk3.4 nC-1.11.1Determine the signs of the charged...
- Q 69) A particle with a mass of 400 g movig at 2.0 m/s collideselastically with a stationary particle whose mass is 240 g.After the collision, the 400 g mass is...
- Q A small solid sphere of mass M0, of radiusR0, and of uniform density ?0 is placed in alarge bowl containing water. It floats and the level of the waterin the...
- Q Problem 22.29What magnitude charge creates a 1.70 N/C electric field at apoint 4.60 m away? Express your answer with the appropriate units.Thanks ;)
- Q Concept:Type of light?Polarization?Dispersion?Critical Angle?What is a lens?
- Q Which one of the following statements is true? Please explaineach choice: why it is true/false.(a) The Burgers vector of an edge dislocation is normal to thedislocation line and normal to...
- Q In the double-slit experiment of the figure below, the viewingscreen is at distance D = 4.00 m, point P lies atdistance y = 13.0 cm from the center of the...
- Q 1) Explain the working of a lightning rod. Don
- Q 8. Determine the desired quantity in each of the followingcollisions: (a) A student of mass 60kg sits on a rolling chair(assume no friction with the ground). He pulls out a...
- Q The power supplied by a torque, ?, to rotate an object atangular frequency, ?, is P = ??. Acommon car engine produces ? = 3000Nm at ? = 3000 RPM...
- Q Why does a frisbee behave differently when thrownupside down?
- Q A textbook of mass 2.00kg rests on a frictionless, horizontalsurface. A cord attached to the book passes over a pulley whosediameter is 0.100m , to a hanging book with mass...
- Q IP A charge of 19.0 μC is held fixed at theorigin.Part A-If a -5.50 μC charge with a mass of 3.60 g is released from restat the position (0.925 mm,...
- Q A rocket is projected upward from the earth's surface (r =RE) with an initial speed v0 that carries itto a distance r = 1.5 REfrom the center of the earth.What...
- Q Suppose that each vehicle is initially moving at 7.0 m/s andthat they undergo a perfectly inelastic head on collision. Eachdriver has a mass of 80.0 kg. Including the drivers, the...
- Q Consider 3 long parallel wires arranged such that they form anequilateral triangle in a plane perpendicular to them. The upperwires carry l 185A and 13SA in the same direction while...
- Q A 12.2??F capacitor is connected through a 0.885?M?resistor to a constant potential difference of 60.0 V.Part A. Compute the charge on the capacitor at the followingtimes after the connections are...
- Q 1. A large open tank contains fresh water of constant density (p= 1000 kg/m3).a) Construct an algebraic expression for the absolute pressure(P) at a specific depth below the surface of...
- Q Answer the following short questions.a. A rectangular block has a resistivity of ? and resistance of?. If we scale it up in size by a factor of 2 in every...
- Q Question 1:A near-sighted person might correct his vision by wearingdiverging lenses with focal length f = -50cm . Whenwearing his glasses, he looks not at actual objects but at thevirtual...
- Q Research and explain in more detail than givenin the lecture pages how a Molecular switch works and what theprospects are for building a molecular computer that makes use ofthese switches.
- Q It's possible to estimate the percentage of fat in the body bymeasuring the resistance of the upper leg rather than the upperarm; the calculation is similar. A person's leg meas-ures...
- Q A car of mass 1110 kg enters a banked turn with a banking angleof 11.1° and a radius of 300 m at a speed of 30.0 m/s. Thecoefficient of static...
- Q A 90.0cm3box contains helium at a pressure of 1.90atmand a temperature of 100?C.It is placed in thermal contact with a 220cm3box containing argon at a pressure of 4.30atmand a temperature...
- Q 1) A ball is tossed from an upper-story window of a building.The ball is given an initial velocity of 8..00 m/s at an angle of20.0 below the horizontal. It strikes...
- Q 1. The treasure map in the figure gives the following directionsto the buried treasure: \"Start at the old oak tree, walk due northfor 510 paces, then due east for                150paces. Dig.\"...
- Q A proton (?? = +?, ?? = 1.0 u; where u = unified mass unit ≃1.66 × 10−27kg), a deuteron (?? = +?, ?? = 2.0 u) and an alphaparticle...
- Q Three charges with q = +6.3
- Q A piston-cylinder device contains 0.56 kg of steam at 300degrees C and 1.4 MPa. Steam is cooled at constant pressure untilone-half of the mass condenses.(a) Find the final temperature. T1=...
- Q consider spherical aberration. Describe1. the effect of the abberation (i.e. what happens to animage)2. what is thr optical basis of the problem3. THREE factors contribute to it
- Q A small plastic sphere with a charge of -5nC is near anotherplastic sphere with a charge of -12nC. (a) If the spheres repel oneanother with a force of magnitude 8.2...
- Q A ball with a mass of 0.615 kg is initially at rest. It isstruck by a second ball having a mass of 0.380 kg , initiallymoving with a velocity of...
- Q What is true when it comes to the concept of FLOATING FREE inSPECIAL RELATIVITY, choose one of the three alternatives each fora) - d)a) AN OBSEVER NEEDS ACCESS TO (1....
- Q A 44.0 kg body is moving in the direction of the positive x-axiswith a speed of 373 m/s when owing to an internal explosion, itbreaks into three pieces. One part,...
- Q Two point charges, Q1 = 3.0 μC and Q2 = -1.7 μC , are placed onthe x axis. Suppose that Q2 is placed at the origin, and Q1 isplaced at...
- Q 1. Relative to horizon stars rise in east and set in westeveryday. a) True b) False2. Relative to horizon the planets rise from west and set ineast t every day....
- Q A research Van de Graaff generator has a 1.98-m-diameter metalsphere with a charge of 4.75 mCon it.a) What is the potential near its surface?MVb) At what distance from its center...
- Q A 100 cm3 box contains helium at a pressure of 2.20 atm and atemperature of 100 ∘C. It is placed in thermal contact with a 220cm3 box containing argon at...
- Q A 0.30-kg puck, initially at rest on a frictionless horizontalsurface, is struck by a 0.20-kg puck that is initially moving alongthe x-axis with a velocity of 9.0 m/s. After the...
- Q In 1956, Frank Lloyd Wright proposed the construction of amile-high building in Chicago. Suppose the building had beenconstructed. Ignoring Earth's rotation, find the change in yourweight if you were to...
- Q Which of the collisions below should definitely be treated asinelastic collisions?A cream pie (TM) hitting a clown at 5 MPHTwo cars hitting eachother head on at 15 MPHA bowling ball...
- Q A cylindrical capacitor consists of a cylinder (of length L andradius a) with a total charge Q nested inside a thin conductingcylindrical shell (of length L and radius b) with...
- Q Question 6. We think of the response of the circuit as the ratioof the maximum current to the maximum voltage provided. Explain whythe ratio of the maximum current to the...
- Q A 7.80-nC charge is located 1.70 m from a 4.30-nC pointcharge.(a) Find the magnitude of the electrostatic force that onecharge exerts on the other.Answer in N(b) Is the force attractive...
- Q Question 1Which of the following is least likely be categorized as“science�Determining the qualities of a pigment used in a famouspaintingDetermining the age of the marble used to make a famousstatueDetermining...
- Q A firework of mass 0.25 kg is launched at an angle of 75o abovethe horizontal, pointing due west. The initial speed of thefirework is 69 m/s. At the top of...
- Q Consider a beam of electrons in a vacuum, passing through a verynarrow slit of width 2.00?m. The electrons then headtoward an array of detectors a distance 1.080m away. Thesedetectors indicate...
- Q A 20.0 cm long organ pipe is filled with air and is open at oneend and closed at the other. The velocity of sound in air at 0
- Q What Happens To The Ball At The Top Of Its Path ?: Your partnerargues the following about a ball that is tossed vertically upward:“At the top of its path the...
- Q A vertical tube 1.1cm in diameter and open at the top contains4.8g of oil (density 0.82 g/cm3) floating on 4.8g of water.A) Find the gauge pressure at the oil-waterinterface.B) Find...
- Q Based on your experimental observations, data, graphs, andconclusions discuss the behavior of a charged particle in amagnetic field. Be sure to use your information from each part ofthe experiment.State the...
- Q A uniformly charged insulating rod of length 19.0 cm is bentinto the shape of a semicircle as shown in the figure below. Therod has a total charge of -6.50
- Q 1. The \"reaction time\" of the average automobile driver is about0.7s . (The reaction time is the interval between the perception ofa signal to stop and the application of the...
- Q I'm struggling a bit with angular momentum.Consider the satellites of the planets orbiting their respectivehost planets while those planets orbit the Sun. Galileo'sobservation of Jupiter's \"moons\" were an inspiration to...
- Q Four resistors are connected to a battery as shown in thefigure. The current in the battery is I, the battery emf is ? =6.20 V, and the resistor values are...
- Q In a volcanic eruption, a 2.40 � 103 kg boulder is thrownvertically upward into the air. At its highest point, it suddenlyexplodes (due to trapped gases) into two fragments, one...
- Q A mass m1 on a horizontal shelf is attached by a thin stringthat passes over a frictionless pulley to a 2.4 kg mass (m2) thathangs over the side of the...
- Q Part AHow many years are required for the amount of krypton-85 in aspent nuclear reactor fuel rod to be reduced by a factor of 1/8?The half-life of krypton-85 is 10.8...
- Q Suppose you put positive charge on an insulated metal box(actually, remove electrons from the box). Since it is a conductor,the charges will rearrange.- The greatest accumulation of charges will benowhere-...
- Q 1. A planet orbits a star with a period of 275 days andsemimajor axis of 3.4×10^11m. If this planet's eccentricity iszero, what is the mass of the star?b. Another planet...
- Q a). A net charge of 10C is available and can be distributed ineach case in• a line describing a quarter circle of radius 10cm, • The surfaceof a sphere of...
- Q A science fiction enthusiast has figured out how to makenanobots with a mass of onehuman cell (10−12 kg). Eachnanobot is capable of reproducing itself with any material it findsat a...
- Q A firework of mass 0.25 kg is launched at an angle of 75 degreesabove the horizontal, pointing due west. The initial speed of thefirework is 69 m/s. At the top...
- Q Calculate the magnitude and direction of both the equilibrantand the resultant of the following three vectors: 0.4N at 60°, 0.5Nat 30°, and 0.2N at 330° .The object of this experiment...
- Q Dock diving is a great form of athletic competition for dogs ofall shapes and sizes. Sheba, the American Pit Bull Terrier, runsand jumps off the dock with an initial speed...
- Q An 7.42 kg block drops straight down from a height of 1.34 m,striking a platform spring having a force constant of 1.10 103 N/m.Find the maximum compression of the spring.
- Q 6.3: a factory worker pushes a 30 kg crate a distance of 4.5 malong a level floor at constant velocity by pushing horizontally onit. the coefficient of kinetic friction between...
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