Physics question and answers for July 24, 2023
- Q Tom, Spock, and McCoy stand on the top deck of a parking garageon planet Earth, 17 m above the ground below. For reasons that areunknown to us, they simultaneously throw...
- Q Ball A of mass 0.55 kg has a velocity of 0.65 m/s east. Itstrikes a stationary ball, also of mass 0.55 kg. Ball A deflectsoff ball B at an angle...
- Q A nucleus has atomic mass of 144. In which of the followingcases could the nucleus be stable?A) The nucleus may be stable if it has between 73 and 83protons.B) The...
- Q You are hired by an automotive company to choose a spring to useon each of the four wheels of a 2000 kg racing vehicle designed togo 180 miles per hour....
- Q The electric component of a beam of polarized light is Ey =(5.10 V/m) sin[(1.16 × 106 m-1)z + ωt]. (a) Write an expression forthe magnetic field component of the wave,...
- Q Two people are carrying a uniform 3 m long steel beam that has atotal mass of 32.1 kg. One person is supporting it at the far leftend with an upward...
- Q A gun is fired, the bullet weights 16 g. It moves at a speed of112 m/s, this bullet gets stuck in a disk. The disk properties areas follows, 2.5kg and...
- Q A 200 g , 22-cm-diameter plastic disk is spun on an axle throughits center by an electric motor. What torque must the motor supplyto take the disk from 0 to...
- Q You are in your car A on the 407 driving at a constant velocity~vA = (vA, 0, 0) and next to it another car (B) takes the exit rampon one...
- Q From the following techniques:Thermal CVD (Chemical Vapor Deposition),Metalorganic CVD,Plasma-enhanced CVD,Atomic Layer Deposition (ALD),Plating,Sol-gel,Sputtering,Thermal evaporation,Electron beam evaporation,Molecular Beam Epitaxy (MBE),Laser ablation,Ion plating,choose one that is best suited for depositinga) 100 nm...
- Q Show that the tensor product of two positive operators ispositive.
- Q You are working in a biotechnology company that specializes inthe design of mass spectrometers with the team that develops thevelocity selector. As part of the project design, you are in...
- Q EXERCISE 1.2-3Sensation Aberration-Free Imaging Surface. Determine theequation of a convex spherical (nonspherical) surface between mediaof refractive indexes n1 and n2 such that all rays (not necessarilyparaxial) from an axial point...
- Q Derive expressions for (i) Schroedinger time dependent and (ii)Schroedinger timeindependent wave equations?
- Q Explain Intermodal and Intramodal dispersions that occur inoptical fiber and derivethe expression for intermodal dispersion.
- Q A small mailbag is released from a helicopter that is descendingsteadily at 1.69 m/s.(a) After 3.00 s, what is the speed of the mailbag?v =Â Â m/s(b) How far is it below...
- Q Let’s consider the following situation: Imagine a 37 kg massfalling from a height h and landing on a spring, compressing it,and then being launched back upwards. If the spring has...
- Q For your chimera’s largest city, respond and addresshow each of these seven makes its climate the way itis.My Chimera is OccitaniaInsolation (solar radiation received) (two to threesentences)Continental vs. Maritime (Marine)...
- Q Consider an epidemic disease in a country;The daily emergence of the disease is given in the table below.The first day is the 18th of March, and the last day of...
- Q 1. (a) Use the Bohr model to find the radius and energy of thefirst excited state (n=2) of doubly ionized lithium.(b)The long and short wavelength limits of a series of...
- Q If an astronomical telescope has the magnification of -31.0 ?and its objective lens has a focal length of 75 cm, what is thefocal length of its eyepiece?cmWhat is the overall...
- Q Calculate the position of the backscatter peak.InCo60 spectra
- Q Discussion A: Describe the concept of electric charge like youwould explain it to an 8 year old. What is it and why is animportant concept?Discussion B: Think about your current...
- Q A swimming pool of depth 2.2 m is filled with ordinary (pure)water (Ï = 1000 kg/m3).(a) What is the pressure at the bottom of the pool?(b) When the pool is...
- Q Apply the hydrostatic formula to calculate pressure forces inoil wells. To make calculations tractable, some grosssimplifications will be made. The realism of these simplificationsis discussed below. Results will be sufficient...
- Q 1. What properties can be calculated knowing the intensity oflight and constants?☠Magnetic Field      ☠ElectricField      ☠EnergyDensity      ☠All of these2. Why does light create radiation pressure?☠Conservation of...
- Q Members of the astronomy club just posted an article about thediscovery of a small comet which orbit is in the same orbit planeas the Earth. In the article it is...
- Q Consider a completely miscible two-component system whoseoverall composition is X, at a temperature where liquid and gasphases coexist. The composition of the gas phase at thistemperature is Xa and the...
- Q The Plutonium isotope 239Pu has a half-life of 24,000 years anddecays by the emission of a 5.2 MeV alpha particle. Plutonium isnot especially dangerous if handled because the activity is...
- Q A 515-Hz tuning fork is struck and placed next to a tube with amovable piston, creating a tube with a variable length. The pistonis slid down the pipe and resonance...
- Q (a) Calculate the speed of an electron that is in the n = 1orbit of a hydrogen atom, and give your answer v as a fraction ofthe speed of light...
- Q A cord is wrapped around a pulley of diameter 0.320 mwith the free end tied to a weight. That weight is allowed todescend at constant acceleration. A stopwatch is started...
- Q List out (calculate) the initial and final velocities, theinitial and final momentums, the impulse, and the amount of forcerequired for the change described to occur for the five listedsituations: A...
- Q To study the Earth, some aliens have put a spaceprobe in thesolar system. It has an elliptical orbit with a semi-major axis of2 AU. The closest distance the probe gets...
- Q Block 1 of mass m1 slides along africtionless floor and into a one-dimensional elastic collisionwith stationary block 2 of mass m2 =5m1. Prior to the collision, the center of massof...
- Q Two cars collide at an icy intersection and stick togetherafterward. The first car has a mass of 1450 kg and is approachingat 8.5 m/s due south. The second car has...
- Q Consider a block of copper.a. Find the density of mobile charges in a piece of copper,assuming each atom contributes two free electrons.b. Calculate the average electron velocity in a copper...
- Q The electron in a hydrogen atom starts in the n = 7 level.Determine all the possible wavelengths that could be emitted if theelectron ends in the first excited state.
- Q Determine the final temperature and composition of the mix of 20g of ice at -40°C and 30g of water at 80°C.
- Q A ballistic pendulum consists of a large heavy mass, M on theend of a very light rod of length L. The rod is free to pivot atthe top and the...
- Q A block of mass 2 kg and a block of mass 3 kg are sliding on africtionless surface. They collide and stick together. Before thecollision the first block was travelling...
- Q An electron and a 0.0220 kg bullet each have a velocity ofmagnitude 490 m/s, accurate to within 0.0100%. Within what lowerlimit could we determine the position of each object along...
- Q A charge of -2.655 μC is located at (2.830 m , 4.359 m ), and acharge of 1.720 μC is located at (-2.807 m , 0).A.) Find the electric potential...
- Q How do we know atoms and molecules are in motion?One of the big problems in chemistry is our dependence upon ourfive senses (macroscopic observations) to infer what occurs on theatomic...
- Q Now that the turkey has been in the oven for quite some time, itis now time to get the gravy ready. First, you will need to put acircular aluminum sauce...
- Q A piece of luggage is being loaded onto an airplane by way of aninclined conveyor belt. The bag, which has a mass of 25.0 kg,25.0kg, travels ?=6.50 md=6.50 m up...
- Q An ideal monatomic gas is contained in a vessel of constantvolume 0.210 m3. The initial temperature and pressure of the gasare 300 K and 5.00 atm, respectively. The goal of...
- Q Create and present a hypothesis of why you believe the Milky Waylooks the way it does. Formulate a method to test this to create atheory. Whose theory (if any) supports...
- Q In the energy level diagram shown below, the energy differencebetween States 3 and 4 is half the energy difference between states2 and 3. An electron undergoes a transition (a quantum...
- Q Chapter #14Question #12,The value of specific heat for copper is 390 J/kg⋅C∘, foraluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘.Part AWhat will be the equilibrium temperature when a...
- Q An athlete at the gym holds a 2.0 kg steel ball in his hand. Hisarm is 70 cm long and has a mass of 4.0 kg .What is the magnitude...
- Q Q1) in the helium atom as a gas containing two electronstwo protons and two neutrons:the Answer: 6 top quark and 6bottomHow we get this answer and show me thesteps Pleas...
- Q A 0.112-kg block is suspended from a spring. When a small pebbleof mass 31 g is placed on the block, the spring stretches anadditional 5.5 cm. With the pebble on...
- Q Aldo and his brother Pablo have gone to skate to a frozenlagoon. At one point he stops to open his lunch, when he observesthat Pablo is approaching directly towards him...
- Q A circuit consists of an 92- resistor in series with a 5.9-?Fcapacitor, the two being connected between the terminals of an acgenerator. The voltage of the generator is fixed. At...
- Q A particle of charge +9.6 μC is released from rest at the pointx = 61 cm on an x axis. The particle begins tomove due to the presence of a...
- Q What is the schrondigers cat theory?
- Q A proton with initial wavelength the same as compton wavelengthscatters off an electron( initially at rest) and bounces back. findthe final energy, kinetic energy, and recoil speed.
- Q 4.A microscope has a 12.0 ×× eyepiece and a 63.0 ×× objective lens18.0 cmcm apart. Assume a normal eye and that the final image is atinfinity.Part BCalculate the focal length...
- Q A metal sphere contains zero net charge.a. Explain why it is incorrect to say that the ball has nocharge.b. Is it possible for the ball to have a positive (or...
- Q A pirate uses a thin lens with f=10cm to image his parrot:a) if the parrot is 6cm from his lens describe the image thepirate sees and its magnification. Draw a...
- Q In 1942, Nikola Tesla, a Serbian-American inventor, electricalengineer, mechanical engineer, physicist, said: \"If you want tofind the secrets of the universe, think in terms of energy,frequency and vibration.\"Your reflection should...
- Q To construct an oscillating LC system, you can choosefrom a 9.7 mH inductor, a 4.7 μF capacitor, and a 2.3 μF capacitor.What are the (a) smallest, (b)second smallest, (c) second...
- Q 1. A block of mass m attached to a spring with spring constant koscillates horizontally on a frictionless table. Its velocity is 20cm/s when x = -5 cm. Taking m...
- Q The motion of a particle is given by x = Asin3(ωt).(a) Enter an expression for the amplitude of the particle'smotion.(b) Enter an expression for the particle's velocity,v.(c) Enter an expression...
- Q Theoutput voltage of an AC generator is given by V = (1.20×10^2) sin(30 pie t) (V). The generator is connected across a 0.500 Hinductor. Find the (a) frequency of the...
- Q In a high jump competition: What would be the maximum height anathlete could jump using a pole? Find out what the world record isand compare with its result. Does your...
- Q a) What is the equation of motion that governs the physicsbehind sound production in your speaker? Discuss what each term inthis equation of motion relates to in your speaker.
- Q 5. An electron moves to the right, entering a region that has auniform electric field directed at you. The direction of the forceperceived by the electron is:a. downb. upc. on...
- Q Describe the fuel for proposed thorium reactors, itsavailability, processing. Describe the fuel for proposed thoriumreactors, its availability, processing.
- Q Two point charges, Q1=−36μC andQ2=49μC, are separated by a distance of 12 cm.The electric field at the point P is zero.How far from Q1 is P?
- Q explain the differences and similarities between classical andrelativistic Electrodynamics.
- Q explain the differences and similarities between classical andrelativistic mechanics.
- Q An astronaut wants to find out his mass while in orbit, to findout if he is staying healthy while in space. Since he can't use abathroom scale (why not?), he...
- Q QUESTION 1How long? How much time in seconds does it take for the sled togo down part of a hill?A sled with a total mass of 671 kilograms is going...
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!