Physics question and answers for September 29, 2023
- Q A force of magnitude 750.0 N stretches a certain spring by 0.220m from its equilibrium position. a)What is the force constant ofthis spring? b)How much elastic potential energy is stored...
- Q A 2000kg large boxcar that rolls without friction is sitting atrest. It is shot by a 20kg cannonball traveling 150m/s. What willthe final velocity of the boxcar be in the...
- Q A satellite has a mass of 6189 kg and is in a circular orbit4.84 × 105 m above the surface of a planet. The periodof the orbit is 2.4 hours....
- Q 3. (a) The range of audible frequencies of sound in air,assuming sufficient amplitude, is from about 20 Hz to 20, 000 Hz.What is the range of audible wavelengths? Take the...
- Q Given the following information about the Higgs boson Develop ascheme (in the form of Feynman diagrams) to produce it and detectit at the LHC (a proton-proton collider) A few givens/assumptions:•...
- Q Common terns hover in a stationary position over the oceanwatching for a tasty fish. When they see one, they immediately stoptheir wings and simply free-fall into the ocean to catch...
- Q A 210 g , 24-cm-diameter plastic disk is spun on an axle throughits center by an electric motor.Part AWhat torque must the motor supply to take the disk from 0...
- Q Hello, I am wondering how I can determine the direction in whicha wave is travelling given a function I must verify if it first isa solution to the wave equation...
- Q A motorist drives south at 26.0 m/s for 3.00 min, then turnswest and travels at 25.0 m/s for 2.00 min, and finally travelsnorthwest at 30.0 m/s for 1.00 min. For...
- Q Explain how the latest technology is used in the investigationsof fingerprints, DNA, and firearms?
- Q The mass flow rate of steam through an ideal Rankine turbine (with an isentropic turbine and an isentropic pump) is 30lbm/s. Thewater and or steam is at a pressure of...
- Q 3. There are several techniques for determining bodycomposition. One method is hydrostatic weighing, or “underwaterweighingâ€. To do this measurement, the person is weighed whilestanding in air on a regular scale...
- Q Consider the data for a block of massm = 0.245 kggiven in the table below, which gives the position of a blockconnected to a horizontal spring at several times. Friction...
- Q Momentum, Impulse, and Collisions:A 1050kg sports car is moving westbound at 15.0m/s ona level road, when it collides with a 6,320kg truck driving east onthe same road at 10.0m/s. The...
- Q Orbital Mechanics:A small space probe is put into circular orbit about a newlydiscovered moon of Saturn. The moon’s radius is known to be 550 km.If the probe orbits at a...
- Q An open container holds ice of mass 0.550 kg at a temperatureof -11.4 ∘C . The mass of the container can be ignored. Heat issupplied to the container at the...
- Q A) For hydrogen, find the frequency of light emitted inthe transition from the 130th orbit to the 122thorbit.B) For hydrogen, find the frequency of light absorbed inthe transition from the...
- Q A boy on a carnival bungee ride is released from rest at thebottom of the ride and oscillates up and down with an amplitude of8 meters and a period of...
- Q A bullet with mass 25g and initial horizontal velocity 320m/sstrikes a block of mass 2kg that rests on a frictionless surfaceand is attached to one end of a spring. The...
- Q 4. Prove that if there are two operators A, ˆ Bˆ, such thattheir commutator [A, ˆ Bˆ] = λ whereλ is a constant. Show that (6 points)exp[μ(Aˆ + Bˆ)] =...
- Q 1. You release a disk (momentum of inertia Idisk=(1/2)mr2 ) withmass m = 100 g and radius r = 10 cm from height 15 cm on a rampwith angle 15°,...
- Q Derive T=MBsin(θ)=NIABsin(θ)
- Q A dockworker loading crates on a ship finds that a 34-kg crate,initially at rest on a horizontal surface, requires a 73-Nhorizontal force to set it in motion. However, after the...
- Q A bullet weighing 0.1 lb is fired vertically downward from astationary helicopter with a muzzle velocity of 1200 ft/sec. Theair resistance (in lbs) is numerically equal to16-5v2, where v is...
- Q Two friends are playing golf. The first friend hits a golf ballon level ground with an initial speed of 43.5 m/s at an angle of32.0° above the horizontal. (a) Assuming...
- Q On a frictionless table, two stationary balls are placed alongthe y-axis with their contact being centered on the origin of theXY-plane. A third ball moves along the x-axis toward the...
- Q Suppose that a parallel-plate capacitor has circular plates withradius R = 28 mm and a plate separation of 5.5 mm. Supposealso that a sinusoidal potential difference with a maximum value...
- Q Ifa block slides down an inclined plane having friction with a springattached to the horizontal plane at the bottom of the plane.Findthe coefficine tof kinetic friction.mass of the block is...
- Q You throw a baseball of mass 178 g horizontally from the top ofa very tall tower with an initial speed of 11.5 m/s. Determine themagnitude of the vertical component of...
- Q Summarize the Acoustic Theory of Speech/Vowel Production
- Q Possible Duplicate:What is a complete book for quantum field theory?At the moment I am studyingPiron: Foundations of Quantum Physics,Jauch: Foundations of Quantum Mechanics, andLudwig: Foundations of Quantum MechanicsAll of them...
- Q Two thin, isolated, concentric conducting spheres of radii 1.10cm and 7.70 cm, have net charges of 13.50 nC and 4.00 nC,respectively. Use the sign of the field to indicate direction,...
- Q Use Voice Onset Time to explain what it means when we say thatwe perceive speech sounds categorically? Be sure to talk aboutdiscrimination
- Q Respond to the following:Explain properties of atomic nuclei.Explain nuclear stability.In your own words, explain α-decay, β-decay, and γ-decay, andgive examples.In your own words, explain nuclear fission and fusion.
- Q A 960kg car is at the top of a 46m -long, 2.5 ? incline. Itsparking brake fails and it starts rolling down the hill. Halfwaydown, it strikes and sticks to...
- Q You are planning a trip to go see relatives for the HolidayBreak. You know your relatives live in a city which is 250 km away.If you can average a speed...
- Q For an average human, the actual values of the densities of thefat and lean tissues are Ïf = 0.9 g/cm3, andÏl = 1.1 g/cm3 respectively (fat tissue=Ïf and lean tissue...
- Q 2.a) Why does the Doppler effect differ in the case where thesource moves to the fixed observer, from the one in which theobserver moves to a fixed source?b) Explain what...
- Q The figure presents a skier at Point A, at the top of a skijump, which curves steeply downward and to the right, passesthrough point B, and then curves back upward...
- Q How many fringes appear between the first diffraction-envelopeminima to either side of the central maximum in a double-slitpattern if λ = 699 nm, d = 0.200 mm, and a =...
- Q A copper disk at 850 degrees celsius rotating about its axiswith an angular speed of 25 rad/s in the outer space. As the diskradiates infrared light, its temperature falls to...
- Q You wish to build a linear accelerator that will accelerateelectrons to ?=89 % of the speed of light. You want adjacent drifttubes to be at +5000V and −5000V potentials. To...
- Q canyou assign a half-life to a population of human? e.g.can you find agroup of 1000 people born in 2000, and note that 500 of them arestill alive in 2050, and...
- Q A block with a mass of 2.50 kg on a spring has displacement as afunction of time given by the equationx(t)= (7.9 cm) cos [5.5 rad/s) t - 2.42 rad].Part...
- Q After an unfortunate accident occurred at a local warehouse, youwere contracted to determine the cause. A jib crane collapsed andinjured a worker. An image of this type of crane is...
- Q An asteroid of mass 2.6×105 kg , traveling at a speed of 25 km/srelative to the Earth, hits the Earth at the equator tangentially,and in the direction of Earth's rotation,...
- Q A microscope with a tube length of 200 mm achieves a totalmagnification of 400
- Q A 5.00-m-diameter garden pond is 0.500 m deep. Solar energy isincident on the pond at an average rate of 400 W/m2. If the waterabsorbs all the solar energy and does...
- Q An ideal gas is brought through an isothermal compressionprocess. The 3.00 mol of gas goes from an initial volume of 222.0 ×10 − 6 m 3 to a final volume...
- Q A pendulum is constructed from a thin, rigid, and uniform rodwith a small sphere attached to the end opposite the pivot. Thisarrangement is a good approximation to a simple pendulum...
- Q Take temperatures and efficiencies to be exact.A monatomic ideal gas (? = 1.67) is compressedadiabatically from a pressure of 3.00
- Q 1- Pick 3 favorite thermal engine cycles2- Draw PV diagram for each (label each step in the cycle)3- Give >1 example of an application for each engine4- Calculate work for...
- Q The figure above shows four very thin parallel planes of chargewith equal separation between them.  The charge density on plate 1 is 3 nC/m2.The charge density on plate 2 is 4...
- Q How do the equations of motion change between the stance phaseof running and the double support phase of walking if the task wasto create the equations of motion between the...
- Q What is an example of each of the principles, Complimentary,Correspondence, Equivalence, Uncertainty and Exclusion?
- Q An oscillator consists of a block attached to a spring (k = 490N/m). At some time t, the position (measured from the system'sequilibrium location), velocity, and acceleration of the block...
- Q Roughly how much plutionium-238 would be needed to run aRadioisotope thermoelectric generator for a mars rover that weighs4000 lbs with a range of 500 mi? what would be the voltage...
- Q how is the counter movement jump related to the ground reactionforce required to jump upwards?
- Q A hollow ball of diameter D is suspended from a string ofnegligible mass whose length is equal to the ball’s diameter. Thestring is attached to the surface of the ball....
- Q A helicopter has two blades (see figure), each of which has amass of 220 kg and can be approximated as a thin rod of length 6.7m. The blades are rotating...
- Q An ancient club is found that contains 150 g of pure carbon andhas an activity of 5.5 decays per second. Determine its ageassuming that in living trees the ratio of...
- Q We’ve already talked about radio telescopes and their ability toallow us access into the non-visible world. What role does radioastronomy play in the detection of interstellar matter?Specifically, what are the...
- Q Problem 1. In the distant future, a physics student is rushingto her final exam traveling in a spaceship at relativistic speed.She passes a policeman at rest a distance 9 km...
- Q 20. Energy in waves. As a sine-shaped wavemoves along a stretched string, each coil os the spring willexecute the simple harmonic motion. Suppose that a spring withlinear density µ= 0.40...
- Q Compare and contrast the following pairs of rocks and explainwhat is the same and different, and why.(a) Granite and Rhyolite(b) Rhyolite and Basalt(c) Granite and granitic gneiss(d) Limestone and marble
- Q please create a 4-6 slide powerpoint on the doppler effect. Thankyou
- Q An electron with a speed of 7.61 × 108 cm/s in thepositive direction of an x axis enters an electric fieldof magnitude 1.14 × 103 N/C, traveling along a fieldline...
- Q A 500-loop circular armature coil with a diameter of 6.0 cmrotates at 190 rev/s in a uniform magnetic field of strength 0.60 T. What is the rms voltage output of...
- Q A parallel plate capacitor with a plate area of 2.00cm^2,separated by a distance of 2.00mm is connected to a power supplywith a potential difference of 240V. Find the capacitance andcharge...
- Q A cube of side s = 2m sits 1 meter from the origin along they-axis, as shown. An electric field E = Eo(1+ y/s) j passes throughthe cube, where Eo...
- Q 10) A shower pipe at the beach that is 10 cm in diameter carrieswater (density 1000 kg/m3 ) up a height of 2.0 m, at which pointthe pipe narrows to...
- Q Two speakers that are 16.0m apart produce sound waves offrequency 270Hz in a room where the speed of sound is 340m/s . Awoman starts out at the midpoint between the...
- Q A hollow sphere, a solid cylinder, and a hollow cylinder are allreleased from rest at the top of a ramp. Which object reaches thebottom of the ramp first?(a) The hollow...
- Q An interference pattern is produced by light with a wavelength600 nm from a distant source incident on two identical parallelslits separated by a distance (between centers) of 0.560 mm .If...
- Q A 950 kg car turns around a curve of a radius 30 m on a levelroad. If the coefficient of static friction between the tires andthe road is 0.55, how...
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