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27.03.2023 - 16:51
A 2.2 mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 100 pF to 200 pF.
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Sound
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16.02.2023 - 20:17
What is the SI unit of amplitude?
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Science
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29.01.2023 - 08:52
What is the frequency of red light with a wavelength of 690 nm?
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Sound
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24.01.2023 - 09:58
Baseball scouts often use a radar gun to measure the speed of a pitch. One particular model of radar gun emits a microwave signal at a frequency of 10.771 GHz. What will be the increase in frequency if these waves are reflected from an 84.0 mi/h fastball
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Science
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22.01.2023 - 08:39
What is the frequency in hertz, that corresponds to each of the following periods (a) 0.10 s (b) 5 s (c) 1/60 s?
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Sound
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11.01.2023 - 19:38
A green laser pointer emits light with a wavelength of 532 nm. What is the frequency of this light?
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Sound
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11.01.2023 - 17:21
Why is speed measured in Hertz? How is it possible to measure it in Hertz?
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Sound
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27.12.2022 - 19:16
A microwave oven operates at 3.00 GHz. What is the wavelength (in nm) of the radiation produced by this appliance?
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Science
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23.12.2022 - 22:13
Given below are the last four digits of 18 random phone numbers of your local population 9.044 2.014 4.880 8.204 5.648 4.109 8.097 8.085 1.831 1.533 5.265 4.069 4.436 1.171 6.383 8.073 6.188 2.211 a. Fill in the frequency table of the final digit of 18 ra
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Science
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14.12.2022 - 19:34
The frequency distribution of order lead time at Ecommerce is given below. |Lead time (days)|Frequency |0 up to 5|6 |5 up to 10|7 |10 up to 15|12 |15 up to 20|8 |20 up to 25|7 |Total |40 a. How many orders were filled in less than 10 days? In less than 1
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Sound
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04.12.2022 - 17:27
The larger the frequency of the tuning fork, the smaller the length of the tube at which you hear the resonant sound. Explain why this is so (think in terms of the relationship between frequency and w
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Sound
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21.11.2022 - 04:01
The carbon dioxide laser is one of the most powerful laser developed. The energy difference between the two laser levels is 0.1 17 eV. Determine (a) the frequency and (b) the wavelength of the radiation emitted by this laser. (c) In what portion of the el
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Science
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18.11.2022 - 08:27
What is the SI unit for frequency? a. seconds b. meters/second c. Hertz d. meters
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Science
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10.11.2022 - 21:55
A hypnotist’s watch hanging from a chain swing back and forth every 0.61 s. What is the frequency (in Hz) of its oscillation?
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Sound
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19.10.2022 - 07:23
A tuning fork vibrates with a frequency of 512 Hz. What is the period of the vibration?
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Science
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09.09.2022 - 19:00
Determine the dimensions (a,b) of an air-filled rectangular waveguide that provides single mode operation over the frequency range from 9GHz to 14 GHz.
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Science
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25.08.2022 - 08:11
What antenna length should be used to create a dipole antenna that emits 100-MHz electromagnetic waves?
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Science
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14.08.2022 - 04:52
A police radar gun uses X-band microwave radiation at a frequency of 5.3 GHz. Microwaves travel at the speed of light or 3 times 10^8 m/s. Since the frequency shift will be small for practical car speeds and difficult to detect, the shifted frequency is
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Science
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17.07.2022 - 14:39
Explain why sticking your finger into ear while talking makes the sound voice seem louder in the plugged ear.
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Science
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15.07.2022 - 07:33
AM radio signals broadcast electromagnetic radiation at frequencies between 590 kHz and 1.40 MHz. (a) What is the shortest wavelength of an AM radio signal? …. m (b) What is the longest wavelength
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