Physics question and answers for July 18, 2023
- Q In the World Series the first team to win four games wins thechampionship. If the two teams are evenly matched, then theprobabilities that the series will be decided after 4,...
- Q An insulated cylinder is initially divided into halves by africtionless, thermally conducting piston. On one side of thepiston is 1 m3 of a gas at 300 K, 2 bar. On...
- Q Explore the Electrical Safety Foundation International's webpages on home safety located within the weekly readings. Thenanswer the following questions:What are the dangers associated with electricity in yourhome?What can be done...
- Q A 200 g mass hangs from a massless spring (k = 10 N/m). At t =0.0 s, the mass is 20 cm below the equilibrium point and movingupward with a...
- Q calculate the mass collision stopping power for a 20-MeV protonin lead, without the shell correction.Answer: 11.6 MeV cm^2/g
- Q Make an argument for what mix of energy you see the worldpowered by in 2050. Include in your analysis – in words – notequations: What mix of stationary power will...
- Q We have potential ofV (x) = ( 0, 0 ≤ x ≤ a.  ∞, elsewhere.a) Find the ground state energy and the first and second excitedstates, if an electron is enclosed...
- Q An electron and a 0.0500-kg bullet each have a velocity ofmagnitude 510 m/s, accurate to within 0.0100%. Within what lowerlimit could we determine the position of each object along thedirection...
- Q A 26-turn circular coil has a diameter of 0.60 m. It is placedwith its axis along the direction of a 50.0-?T magnetic field andthen flipped through an angle of 180°...
- Q Two identical conducting spheres, fixed in place, attract eachother with an electrostatic force of -0.8803 N whenseparated by 50 cm, center-to-center. The spheres are thenconnected by a thin conducting wire....
- Q An unknown mass of water (m1) of temperature 3.4°C is mixed withanother unknown mass of water (m2) of 55.6°C. The combined mixtureof water (m3) has a temperature of 26.1°C and...
- Q Galileo's great-great-great grandchild stands at the top of avertical tower 57.8 m tall with a Chianti bottle. How long does ittake for the bottle to fall to the ground, if...
- Q A block of mass m1 = 2.3 kg initially moving to the right with aspeed of 4.8 m/s on a frictionless, horizontal track collides witha spring attached to a second...
- Q 2. What are the differences between standing and travelingwaves?
- Q 7.1.2. A pulsating sphere of radius a vibrates with asurface velocity amplitude U0 and at such ahigh frequency that ka >> 1. Deriveexpressions for the pressure amplitude, the particle velocityamplitude,...
- Q Now that the satellite has been launched (i.e. Ch. 12 Lab),Earth is hopeful to get a more reliable eye on space anomalies.Shortly after the satellite's course around Jupiter, communicationstarted to...
- Q 1. How does the brightness of the refracted ray change when theincident angle (from glass to air) changes from less than criticalangle to greater than critical angle?a. brighterb. dimmerc. unchangedd....
- Q A playground is on the flat roof of a city school, 6.00 m abovethe street below. The vertical wall of the building is 7.00 m high,forming a 1.00 m high...
- Q I have recently been intrigued by the following question: Whatis the difference between the pitch of the noise of dripping waterbetween hot and cold water? For example, would cold water...
- Q 1. In \"magnetic force on a current carrying wire\" experiment,using the data for force(y-axis, in Newton) versus length (inmeters), someone obtained a linear curve fit equation: y=0.1x+2. Ifin the experiment,...
- Q What are the advantages and disadvantages of radiation deliveredthrough radiopharmaceutical or via an external source
- Q Give a definition for the golf ball event horizon andthe photon event horizon.
- Q Solve the quantum simple harmonic oscillator in three dimensionsi.e. find the energy and eigenkets. It's solution will includehermite polynomials.
- Q in a basketball game a referee throws the basketball upwardsfrom an initial height of 2.00 meters above the floor, withsufficient initial speed such that its highest point will be 4.20meters...
- Q 7) a) What is the energy emitted in 1 minute from a black coffeemug which has a radius of 4 cm and height 6 cm and temperature of70 Fahrenheit. What...
- Q Two objects with masses of m1 = 3.20 kg andm2 = 7.90 kg are connected by a light stringthat passes over a frictionless pulley, as in the figure below.A string...
- Q V1=1000 m/s, V2=1800 m/s, V3= 800 m/s, V4= 1400 m/sangle1= 35 deg, angle2= 60 deg, angle3= 130 deg, angle4= 340deg.1.) Find the sum V in cartesian and polar coordinates of...
- Q Three objects are located as follows: 3.70 kg at (0, +12.0 m),2.80 kg at (-16.0 m, 0), and 7.40 kg at (+35.0 m, 0). Find the:A) center of mass.B) magnitude...
- Q The dynamic duo of Je’Kai and Oluwalani have an acrobaticroutine where Je’Kai applies a 112 N external force to Oluwalani’shorizontally outstretched right leg at a point x = 0.35 m...
- Q A blue car with mass mc = 512 kg is moving east with a speed ofvc = 17 m/s and collides with a purple truck with mass mt = 1397...
- Q Torque and EnergyYou are working with your friend to build a brickfireplace. The contractor dropped 1000 - 1 kg bricks at the base ofyour driveway which must be carted to...
- Q Boxcar #1 has a mass of 2000kg.  Boxcar #2 has a mass of 1200 kg.  Boxcar#1 is moving at 12.00 m/s to the right before they hit and sticktogether.A)         Supposethat the velocity of...
- Q 3. Show that Hertzian dipole antenna pattern is perpendicularto its antenna axis and draw [2]its radiation pattern in far-field region.
- Q Two 7.1 Ω resistors are connected in parallel, as are two 3.1 Ωresistors. These two combinations are then connected in series in acircuit with a 19 V battery. What is...
- Q given a two-level atomic system where level-2 is more energeticthan the ground state level-1, what is the meaning of theexpression      dN2/dt = B12uvN1-B21uvN2-A21N2       when in thermalequilibrium show that    A21N2+ B21uvN2 =B21uvN1
- Q A pickup truck with mass 2150 kg is traveling with aspeed of 26.6 m/s, while a compact car of mass 1121 kg is travelingin the opposite direction with the same...
- Q Two particles are fixed on an x axis. Particle 1 ofcharge 57.8 μC is located at x = -12.7 cm; particle 2 ofcharge Q is located at x = 16.3...
- Q Using the method of jones calculus show that the effect of ahalf wave plate on a circularly polarised state is to turn it intoanother circular state of the opposite handedness
- Q During the process of charging a capacitor C through aresistance R ; the physical quantity that decreases exponentiallywith time is :Select one:A. the time constant of the RC circuitB. the...
- Q C++ language, only math equation, no code.A Box on a slope slides under the following force F =m*g*sin(theta) - 0.2v(t). Assume m = 1kg and g=10 and theta = 30'.We...
- Q We will look at the discharge time of a capacitor to find itscapacitance. Consider a circuit with a 6.00 V battery and aresistor with 102,000 ohms. Complete the two tables...
- Q 11) When we solved problems dealing with objects in free-fall,we often exploited a symmetry that led to the conclusion that thetime it takes an object to go from a starting...
- Q 1. For an ideal gas at a constant temperature, whichvariable change corresponds directly to how much work can beextracted from an engine process? Explain why.2. You learned how the Doppler...
- Q 1. You slide an object across a horizontal surface, thatobject will eventually slow down and stop. What’s causing this andwhy?2. Name two instances in your dailylife where “conservation of energyâ€...
- Q Determine the size of the solar array and the number ofbatteries required to power a pump that will pump water from a 150ft deep well to a storage tank that...
- Q E field of a uniform and planar distribution of chargeA uniform surface charge density of 5nC/m2 is present in theregion x=0, -2<y<2 and all z. if ε=ε0, find E at:a)...
- Q please paraphrase this paragraph in different way.(The first oxygen-sensing mechanism by fluorescence wasdemonstrated by Kautsky in the early 20th century. and the firstfluorescence system with an integrated UV source was...
- Q A straight wire lying in a horizontal plane carries a current of20 A. (Given, μ0 = 4π × 10-7 Tm/A)(a) Find the magnitude of the magnetic field at a perpendiculardistance...
- Q A very long conductive tube has inner radius a and outer radiusb. It carries charge per unit length +alpha (C/m). A line of chargewith linear charge density +alpha lies along...
- Q Four objects are located as follows: 3.70 kg at (0,+12.0 m), 2.80 kg at (-16.0 m, 0), and 7.40 kg at(+35.0 m, 0). Find the:A) center of mass.B) magnitude and...
- Q in what ways did WWI and WWII affect awarenessof mental health disorders among the federal government and theAmerican public? With what results?
- Q 7) A 1.5 kg of -5 °C ice is introduced into a container holding400. L of 110 °C steam. What is the final temperature of the systemin equilibrium? Assume no...
- Q Two charges of equalmagnitude and opposite sign form a dipole. Let q1 = 4 nCand q2 = -Â 4 nC, and the charges are located on the yaxis at y...
- Q The largest downward force you can exert on a certainmultiple pulley system = 777 N. When you move the rope 3.5 m, theobject moves 0.35 m. What is the heaviest...
- Q Please answer question 2b. If you are writing by hand pleasemake handwriting as readable as possible.2. Lithography:(a) Polymers containing aromatic rings are more likely to absorb UVphotons, leading to chain...
- Q Find an article about recent findings inphysics from a reputable source. After you've read yourarticle, Summarize it in 1-2 paragraphs. In an additionalparagraph, discuss any evidence presented in the article....
- Q 10.How does a light-emitting diode work? Why are there differentcolors of LEDs?
- Q A mass weighing 4 pounds stretches a spring 4/3 ft. The entiresystem is immersed in a fluid offering a damping force numericallyequal to the instantaneous velocity. Beginning at t=0, an...
- Q Copernicus's heliocentric model and Ptolemy's geocentric modelwere each developed to provide a description of the solar system.Both models had advantages that made each an acceptable explanationfor motions in the solar...
- Q In a downhill ski race surprisingly little advantage is gainedby getting a running start. This is because the initial kineticenergy is small compared with the gain in gravitational potentialenergy even...
- Q A four-turn circular wire coil of radius 0.550 m lies in a planeperpendicular to a uniform magnetic field of magnitude 0.355 T. Ifthe wire is reshaped from a four-turn circle...
- Q An object is attached to the bottom of a glass plate with indexof refraction 1.5. Three light rays (a, b, c) emanating from theobject are shown; they make angles of...
- Q Get a sheet of paper and draw a horizontal optical axis. Next,draw a vertical line near the center of the optical axis torepresent your lens, then measure out and draw...
- Q Explain graphically the differences in linear,circular, and elliptical polarization together with the quantities/ formulas that represent each
- Q Ina car lift, compressed air exerts a force on a piston with a radiusof 5.00 cm. The pressure is transmitted to a second piston with adiameter of 30.0 cm.(A) How...
- Q Two identical point charges (q = +3.00 x 10-6 C) are fixed atopposite corners of a square whose sides have a length of 0.580 m.A test charge (q0 = -3.00...
- Q Where do we experience centripetal force around us in real life.When would we use this concept \"centripetal force\" and \"centripetalacceleration.\" I am trying to understand this concept and break itdown...
- Q A conventional activated-sludge plant treats 10.0 MGD ofmunicipal wastewater with a BOD concentration of 240 mg/l andsuspended solids of 200 mg/l. The sludge flow pattern is shown inFigure 11-1 of...
- Q List the major satellites of Jupiter & Saturn. Brieflyindicate some of their properties &/or why they are ofparticular interest
- Q Two particles collide with a normal direction defined:0.2i+0.98j (eT=0.98i+-0.2j). The first mass has a mass of 4 kg anda velocity of 4i m/s. The second mass has a mass of...
- Q Explain the mechanism that creates the hyperfine structure ofhydrogen.
- Q The table below list heights (in m) and temperatures (in °C) at18 UTC on February 16, 2009 for several pressure levels at SanDiego, CA. The data were derived from a...
- Q Make a table listing some of the major similarities &differences between Jupiter & Saturn. (Include suchcharacteristics as: orbital & rotational properties; structure& composition of interiors & atmospheres; internal heatsources &...
- Q explain consideration of earth's rotation in designing andlaunching missiles and also explain angular velocity vector.explain fiber optic methods of pressure sensing, piezoelectric,magnetostrictive and hall-effect sensors, smoke and firedetectors.
- Q Search for Extraterrestrial Intelligence (SETI) up to this pointthe search for extra terrestrial intelligence has come up empty.The reasons why we have not observed other life is up for debateand...
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