Part A Smaller wavelengths allow for imaging of smaller objects. As a general rule, the wavelength being used to detect an object must be at least as small as the object itself. The new coronavirus has a diameter of 60 nm to 140 nm Which of the following technologies could be used to detect a coronavirus? (select all that apply) O UVA microscopy O UVB microscopy O Uvč microscopy O electron microscopy (with electrons travelling at 1000 m/s) O electron microscopy (with electrons travelling at 10 000 m/s)

Part A Smaller wavelengths allow for imaging of smaller objects. As a general rule, the wavelength being used to detect an object must be at least as small as the object itself. The new coronavirus has a diameter of 60 nm to 140 nm Which of the following technologies could be used to detect a coronavirus? (select all that apply) O UVA microscopy O UVB microscopy O Uvč microscopy O electron microscopy (with electrons travelling at 1000 m/s) O electron microscopy (with electrons travelling at 10 000 m/s)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Part C At a local high school track meet, an athlete in the 100 m spring reaches a top speed of 6.6 V(vm m/s)). If the athlete's mass is 59 V{vm kg}\) , what is their de Broglie wavelength? 1.55x10-28 (vm m)\) O 3.41x10-36 vvm m)) 1.70x10-36 V(vm m)\) O 5.87x1035 V{\vm m}\) Submit Request Answer Part D What is the longest wavelength of the Balmer series (\(n'=2\))? O 1.82x10-7 v\m m}\) O 1.22x10-7 {\m m}\) O 3.65x10-7 {\vm m}\) O 6.56x10-7 Vm m}\) O 5.47x10-7 vm m)) Submit Request Answer
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Electrons with a speed of 1.4×106 m/sm/s pass through a double-slit apparatus. Interference fringes are detected with a fringe spacing of 2.4 mmmm . Part A What will the fringe spacing be if the electrons are replaced by neutrons with the same speed? Express your answer in micrometers. ΔynΔyn = 1.30•10−6 μmμm SubmitPrevious AnswersRequest Answer Incorrect; Try Again; 4 attempts remaining Part B What speed must neutrons have to produce interference fringes with a fringe spacing of 2.4 mmmm ? Express your answer in meters per second.
Part A The intensity of sunlight hitting the surface of the earth on a cloudy day is about 0.50 kW/m² Assuming your pupil can close down to a diameter of 2.0 mm and that the average wavelength of visible light is 550 nm, how many photons per second of visible light enter your eye if you look up at the sky on a cloudy day? Express your answer using two significant figures. N = ΜΕ ΑΣΦ Submit Request Answer ?
Thermal neutrons are produced by a fission nuclear reactor. The temperature of the neutrons is about room temperature, T 2 299 K. The kinetic energy of the neutron is E = kgT, where kp = 1.38 x 10–23 J/K is the Boltzmann constant. The mass of a neutron is m, = 1.67 x 10-27 kg. Part 1) Calculate the de Broglie wavelength of a thermal neutron. nm Part 2) The highest energy photons ever observed are y-rays with energies up to 311 trillion electron volts, Ey = 311 × 102 eV. The rays come from the Crab nebula, the remnant of a supernova explosion. Calculate the wavelength of these photons. m Part 3) A position uncertainty of an electron in a hydrogen atom is about size of the atom, which is Aæ = 0.500 Å = 0.500 × 10–10 m. Using the Heisenberg uncertainty relation, Ap Ax = , calculate the related kinetic energy (zero motion energy): (Ap? 2m E = 2m The electron mass is m = :0.910 x 10-30 kg. E eV
Please help me with a,b,c questions please, well explained and detailed.
Part A Estimate the number of photons emitted by the Sun in a year. (Take the average wavelength to be 550 nm and the intensity of sunlight reaching the Earth (outer atmosphere) as 1350 W/m².) VE ΑΣΦ 3.74 10 ● Submit ? Previous Answers Request Answer photons/yr
can you solve C please
After you calibrate the SpectroVis Plus spectrometer, you must a. run a full spectrum by selecting Sensors/Calibrate/Full Spectrum. O b. change the mode by selecting Sensors/Time-Based. Oc. collect a full spectrum of the sample to determine the wavelength of maximum absorbance. O d. change the mode by selecting Sensors/Data Collection.
In an old-fashioned television set, electrons are accelerated through a potential difference of 25.2 kV. What is the de Broglie wavelength of such electrons? (Relativity is not needed.) Number i Units
Electrons are emitted when a metal is illuminated by light with a wavelength less than 383 nm. Part A What is the metal's work function? ΜΕ ΑΣΦ E = Submit Request Answer Provide Feedback ? eV