Physics question and answers for August 29, 2023
- Q A spherical raindrop 2.1 mm in diameter falls through a verticaldistance of 3650 m. Take the cross-sectional area of a raindrop =Ï€r2, drag coefficient = 0.45, density of water to...
- Q 1 (a) A ball is launched from the ground toward a tall wall of abuilding at initial speed v0 = 21 m/s at an angle of 39degrees relative to the...
- Q A black hole has an event horizon radius of 3.00
- Q A student throws a ball vertically. 2.0 seconds later, it iscaught by a friend on a balcony 5.0 m above the point of release.When did the ball first pass the...
- Q Two identical spaceships, both measuring 100 m at rest aremoving in the same direction. In a particular reference frame onespaceship measures 80 m, and the other 60 m. What would...
- Q Given two wave equations, ?1(?, ?) = ? sin(?? − ?? + ?1) and?2(?, ?) = ? sin(?? − ?? + ?2), what is the linear combination ofthe two wave...
- Q Pendulum experiment:1) create a plot of length (x axis) versus average period (yaxis). Make sure to clearly label your axes and indicate units.(2) create a plot of length (x axis)...
- Q A binary star system consists of two stars, each of mass 2 *10^30 ??. The initial positions of Star A and Star B are ?⃗?? =〈−3, −4, 0〉 * 10^9...
- Q Consider 100 g mass hung from a spring at equilibrium (y = 0).Write the equation of oscillation, and sketch of the mass’ positiony(t) for the following situations. Be sure to...
- Q A long, hollow, cylindrical conductor (inner radius 2.4 mm,outer radius 4.4 mm) carries a current of 45 A distributeduniformly across its cross section. A long thin wire that iscoaxial with...
- Q three point charges +1 nC +2nC and -3nC are placed in two adjacentvertices and in the center if a square with 3m ling sides. findelectric field (magnitude and direction) and...
- Q A box of mass 18.0 kg sits at rest on a horizontal surface. Thecoefficient of kinetic friction between the surface and the box is0.300. The box is initially at rest,...
- Q If the coefficient of kinetic friction is 0.2, what friction ofthe total mechanical energy is lost due to frictional forces?Run#Mass of hanger + weights (M)mass of glider +flag (m)velocity of...
- Q A copper calorimeter can with mass 0.555kg contains 0.165kg ofwater and 1.90
- Q Superhero physics: a) Choose a height between 1.00 miles and3.00 miles. How fast would a superhero have to throw a ballstraight upwards in order for it to rise this high?...
- Q Particle A and particle B are held togetherwith a compressed spring between them. When they are released, thespring pushes them apart and they then fly off in oppositedirections, free of...
- Q How are conversion electrons formed? List all the differencesbetween an internal conversion process and beta decay?
- Q A person with mass m=80 kg is training for pushups. Assume thatthe distance between the shoulders and the feet is 1.5 m, and thecenter of mass is at 1 m...
- Q A small boat with a speed of 23km/h relative to the water issailing in a sea which has a speed of 15 km/h relative to the shorein a direction E...
- Q A charge of -3.50 nCnC is placed at the origin of anxy-coordinate system, and a charge of 1.90 nCnC is placedon the yy axis at yy = 3.65 cmcm .Part...
- Q Newton's 2nd law says that when a larger force is applied to anobject of mass m, the object will experience a larger acceleration.At the same time, you've learned that all...
- Q PLEASE ACTUALLY DO IT OUT! I TRIED TO DO THE BOTTOM ANSWERS ANDKEPT GETTING WRONG FOR LAST TWO.The heating coils in a hair dryer are 0.800 cm in diameter, havea...
- Q A student runs an experiment with two carts on a low-frictiontrack. As measured in the Earth reference frame, cart 1 (m = 0.48kg ) moves from left to right at...
- Q At a particular location in your house, three appliances makesound intensity levels of 73.2 dB, 76.1 dB, and 69.2 dBindividually. What is the sound intensity level at that locationwhen they...
- Q A watermelon seed has the following coordinates: x =-6.4 m, y = 5.0 m, and z = 0 m. Find its positionvector as (a) a magnitude and (b)an angle relative...
- Q A long, straight, copper wire with a circular cross-sectionalarea of2.1 mm2carries a current of 22 A. The resistivity of the material is 2.0010-8?
- Q Please respond no later than 9:00 am Saturday, June 16, 2018.Thank you.Part 1QUESTION How would the time of the jump and thehorizontal distance traveled change if g were changed, forexample...
- Q How did Galileo use inclined planes to discover the idea ofinertia?
- Q How thick (minimum) should the air layer be between two flatglass surfaces if the glass is to appear bright when 510 nm lightis incident normally?nmWhat if the glass is to...
- Q A magnifying glass is a single convex lens with a focal lengthof f = +9.50 cm. (Assume the person using the magnifyingglass has a near point of 25 cm and...
- Q An electron is released from rest at the negative plate of aparallel plate capacitor and accelerates to the positive plate (seethe drawing). The plates are separated by a distance of...
- Q Two converging lenses, each of focal length 14.9 cm, are placed39.3 cm apart, and an object is placed 30.0 cm in front of thefirst lens. Where is the final image...
- Q The figure is an overhead view of a thin uniform rod of length0.467 m and mass M rotating horizontally at angular speed 15.7rad/s about an axis through its center. A...
- Q A transverse harmonic wave travels on a rope according to thefollowing expression: y(x,t) = 0.17sin(2.8x + 17.3t) The massdensity of the rope is μ = 0.107 kg/m. x and y...
- Q A satellite is in a circular orbit about the earth (ME = 5.98X10^24 kg). The period of the satellite is 1.40X10^4 s. What is thespeed at which the satellite travels?
- Q A 58.0 kg bungee jumper is standing on a tall platform (ho =46.0 m) as shown in the diagram. The bungee cord has an unstrainedlength of Lo = 9.00 m,...
- Q Consider the situation where one IOLab device rolls into anotherstationary IOlab device and they stick together and they roll offtogether. When answering the following questions, answer themspecifically for this situation.How...
- Q a photon beam is made from a target with a high impedance.electron beams of 6 and 16Mev are used in the process, shot at thetarget. the ratio of beam intensity...
- Q Calculate the frequency of the photon emitted when the electronjumps from the n = 3 to the n = 2 energy level.
- Q Modern International Maritime Organization (IMO) regulationsspecify that ships longer than 200 m must have a ship's whistlewhose frequency is between 70 and 192 Hz. Suppose that a 235-m shiphas a...
- Q READING 2 The eardrum is displaced surprisingly little when asound wave strikes it. Some idea of the displacement of the eardrumby a sound wave can be obtained by using Equation...
- Q Describe magnetic inductance and give examples.Describe R-L, L-C, and L-R-C seriescircuits, and give examples.( NOT by hand)
- Q 1. The PhenomenonA toy car launcher works as follows:There is a compressible spring that is attached to a horizontalrail, on which a toy car can roll. The toy car can...
- Q A box of mass m1 = 2.0 kg starts from restand slides down the frictionless incline. At point A, the boxencounters a (massless) spring of spring constant k. Itcompresses the...
- Q can you write about Newton's laws of motions in termpaper at least three pages
- Q Currently I am working with Pull up and pull down registers andtrying to understand what does it mean? But could not able tounderstand. I searched in Wikipedia but still confused.
- Q A rocket ship, with mass m=20,000kg, and engines mountedperpendicularly in the x and y directions, fires both rocketssimultaneously. The engine oriented in the x-direction fires for 3sand shuts off. The...
- Q An electron with a speed of 4.28
- Q An ideal gas (which is is a hypothetical gas that conforms tothe laws governing gas behavior) confined to a container with amassless piston at the top. (Figure 2) A massless...
- Q Find inductance, L, of a concentric cable composed of twocylindrical wires: a solid inner wire of a radius a = 2 mm carryinga constant current I, and a very thin...
- Q Type (at least 200 words):Â Â Electromagnets, MagneticFields and Magnetic Field Strengths (no formulas only relation).Also, write about Force on a Moving Charge in a Magnetic Field andtransformers. Work out easy examples...
- Q Ugonna stands at the top of an incline and pushes a 100−kg crateto get it started sliding down the incline. The crate slows to ahalt after traveling 1.50 m along...
- Q A particle of charge ?7.5 mC is released from rest at the pointx ? 60 cm on an x axis. The particle begins tomove due to the presence of a...
- Q What happens to the mass of an object as it is accelerated? Whycan’t objects travel faster than the speed of light?
- Q explain how the magnetic field enables the three phenomenabelowmagnetic field1 low oxygen concentration2 reducing impurity3 maintaining stability of melt surface for dislocation freegrowth
- Q A mass of 8 kg rests on a floor with a coefficient of staticfriction of 0.88 and coefficient kinetic friction of 0.33. Oneforce is applied vertically downward of 28 Newtons...
- Q What is meant by spectroscopy in modern physics? Give an exampleof an experimental result
- Q 1 Write down the expressions for centripetal force and angularmomentum2 What are the units of moment of inertia?3 In Fig.1 show that the tension, T, in the string causing thepulley...
- Q A fan is designed to last for a certain time before it will haveto be replaced (planned obsolescence). The fan only has one speed(at a maximum of 675 rpm), and...
- Q TYPE with KEYBOARD, pleaseWhat is the purpose of Conservation of linear momentumexperiment?And what is the theory of Conservation of linear momentumexperiment? Write a paragraph on elastic and inelastic collision.Include related...
- Q 1. A contact lens and a sewing needle are pretty much the sameweight. Why is one of these a lot more comfortable resting on youreye? Ah! ?? (everyday life)2. Write...
- Q 2 identical speakers are in phase with eachother, at the sameposition on the x-axis, and both have a wavelength of 3 meters.They are seperated from eachother on the y-axis by...
- Q A locomotive is accelerating at 1.6 m/s2 as it passes through a30-m-wide crossing. After the locomotive leaves the crossing, howmuch time is required until its speed reaches 40?
- Q (a) What is the magnitude of the tangential acceleration of abug on the rim of an 11.5-in.-diameter disk if the disk acceleratesuniformly from rest to an angular speed of 77.0...
- Q A proton has an initial speed of 4.02E+5 m/s. What potentialdifference is required to bring the proton to rest?What potential difference is required to reduce the initialspeed of the proton...
- Q A three-legged wooden bar stool made out of solid Douglas fir(the Young's modulus is 1.0×1010N/m2) has legs that are 2.0 cm indiameter.When a 85 kg man sits on the stool,...
- Q A 5.0 kg mass is initially at rest on a horizontal frictionlesssurface when a horizontal force along an x axis is applied to theblock. The force is given by ?...
- Q A 500 kg elevator accelerates upward at 1.9 m/s2 for 20 m,starting from rest.a) How much work does gravity do on the elevator?b) How much work does the tension in...
- Q Describe how a generator is used to provide electrical energy.Where does that energy come from?
- Q A 3.9 kg ball swings from a string in a vertical circle suchthat it has constant mechanical energy. Ignore any friction fromthe air or in the string. What is the...
- Q 1. The electric potential inside a conductor in equilibrium is(constant or zero?) 2. How would you check whether an electrode isperfectly conductive?
- Q `DIRECTIONS: Write an answer to each question legible, usingcomplete sentences and your own words as much as possible.6.          Whatinformation is needed to directly determine the range of aprojectile without using...
- Q A force of 60 lbs make an angle of 45° with the horizontal. Findits vertical and horizontal components. Draw the figure.
- Q Which of the following statements are true? Choose allthat apply.1.The length of a microscope is greater than the sum of thefocal lengths of the eyepiece & objective.2.The purpose of a...
- Q Write 250 words.Question: Theory -- Here, provide the relevant theoreticalbackground including all formulas needed for the analysis. Makesure you define the different quantities and symbols that you haveused in your...
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