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- Lunar astronauts placed a reflector on the Moon’s surface, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. (a) To what accuracy in meters can the distance to the Moon be determined, If this time can be measured to 0.100 ns? (b) What percent accuracy is this, given the average distance to the Moon is 384,480 kin?What are the wavelengths of (a) X-rays of frequency 2.01017 Hz? (b) Yellow light of frequency 5.11014Hz ? (C) Gamma rays of frequency 1.01023Hz ?(a) What is the wavelength (in meters) of a 93.3 MHz Radio wave frequency? (b) What is the frequency (in Hz) of an x-ray beam with a wavelength of 0.0100 nm?
- ed k ces A particular form of electromagnetic radiation has a frequency of 2.74 × 10¹5 Hz. (a) What is the wavelength in nanometers? In meters? Enter your answer in scientific notation. x 10 x 10 (b) To which region of the electromagnetic spectrum would you assign it? X-ray visible nm microwave m infrared ultraviolet radio wave gamma ray x 10 (c) What is the energy (in joules) of one quantum of this radiation? Enter your answer in scientific notation. JCalculate the energies of the following waves (in kilojoules per mole) An FM radio wave at 96.5 MHz and an AM radio wave at 1100 kHz Enter your answers numerically separated by a comma. ΕΧΕΙ ΑΣΦΑ EPM, EAM 1.06 10-47,1.21 10-49 Submit ° Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ▾ Part B ? kJ/mol An X ray with 3.40×10-9 m and a microwave with A=6.67×10-2 m. Enter your answers numerically separated by a comma. ΜΕ ΑΣΦ 0 ? 49 Ex-ray, Eairo 9.71 10 40,4.95 101 Submit Previous Answers Request Answer remaining kJ/mol1. An air-filled parallel plate capacitor is being charged. As a result the electric field between the plates is increasing as follows: E(t) = (2.00 x 1014 v/m-s)t, where t is time in seconds. The area of each %3D plate is 100 cm?. What is the displacement current between the plates (in A)? (A) 5.54 (B) 8.00 (C) 12.5 (D) 17.7 (E) 22.3 (F) 26.0
- 1:.0 O %).. N O a all zain 1Q O 24 May 2021 a... H.W: If a (10 mJ) laser pointer creates a spot that is 5 mm in diameter in a 30 second, determine the radiation pressure on a screen that absorbs 40% of the light that strikes it.Problem 4: Consider the 100-MHz radio waves used in an MRI device. Part (a) What is the wavelength, in meters, of these radio waves? λ = 3 Part (b) If the frequencies are swept over a ±12.5 MHz range centered on 100 MHz, what is the minimum, in meters, of the range of wavelengths emitted? λmin = Part (c) What is the maximum, in meters, of this wavelength range? λmax =A tungesten filament is heated to 2600.0 ∘C. Calculate the wavelength for which the emission spectrum of the filament is maximum assuming that it fully absorbes light at all wavelengths. Select one: a.λmax=1009 nm b.λmax=1087 nm c.λmax=1137 nm d.λmax=1115 nm
- (a) How many minutes does it take a photon to travel from the Sun to the Earth? in minutes (b) What is the energy in eV of a photon with a wavelength of 533 nm? in eV (c) What is the wavelength (in m) of a photon with an energy of 1.03 eV? in metersFiles -> A webassign.net/web/Student/Assignment-Responses/submit?dep=22985018&tags=autosave#question3540154_7 0.69435 V MW 7. Previous Answers V SERPSET9 34.P.032. At what distance from a 115 W electromagnetic wave point source does Emax = 13.0 V/m? 6.389 8. Previous Answers V SERPSET9 34.P.067. A 1.11-m-diameter circular mirror focuses the Sun's rays onto a circular absorbing plate 2.00 cm in radius, which holds a can containing 1.05 L of water at 20.0°C. (a) If the solar intensity is 1.02 kW/m2, what is the intensity on the absorbing plate? 785.46 kW/m2 (b) At the plate, what is the maximum magnitude of the field E? 24.335 V KN/C (c) At the plate, what is the maximum magnitude of the field B? 81.1187 V HT (d) If 40.0% of the energy is absorbed, what time interval is required to bring the water to its boiling point? 0.0119 X min Submit Answer 9. Previous Answers V There's a very important difference between light waves and sound waves (or any other types of waves, for that matter).…An x-ray tube is operated at 48900 V. Calculate the minimum wavelength of the radiation emitted by this tube. If this radiation is directed at a crystal, the first-order maximum in the reflected radiation occurs when the angle of incidence is 2.93o. What is the spacing between reflecting planes in the crystal?