Q: A sea monster chases a submarine near the bottom of the North Atlantic Ocean. The submarine is…
A: The speed of the sea monster is 7.11 m/s No, submarine is not in trouble as the speed of submarine…
Q: Telephone systems use frequencies of 300 Hz to Select Choice v Select Choice 3000 Hz 1000 Hz 8000 Hz…
A: Telephone systems use frequency of a certain range To find = range of telephone frequency
Q: Why do astronauts use radios while talking to one another in outer space?
A: Astronauts use radios while talking to one another in outer space.
Q: A 1 KW signal is transmitted using a communication channel which provides attenuation at the rate of…
A:
Q: Why do we receive the distance a signal or bit has traveled when propagation speed is multiplied by…
A: Why do we receive the distance a signal or bit has traveled when propagation speed is multiplied by…
Q: Estimate the force exerted on your eardrum by the water above you when you are swimming at the…
A: Answer Given Swimming pool depth, h = 4.37 m Cross sectional area of eardrum A = 1 cm2 = 1×10-4 m2…
Q: Qlif I Smn is thentt8mn sot when? Ahe answer the Kronec Ker ajency, Choose
A:
Q: Estimate the force exerted on your eardrum by the water above you when you are swimming at the…
A: The liquid pressure at a point inside the liquid at a depth of h from the liquid surface is given…
Q: why some message are not delivered?
A: Some message are not delivered because of if text message is send to Invalid number . If we send…
Q: What is the signal range for brain EEG recorded on the scalp? 10^1 - 10^3 V 10^-5 - 10^-3 V 10^-5 -…
A: An adult human EEG signal is about 10 µV to 100 µV in amplitude recorded in the scalp
Q: A 100 milliwatt signal is sent over a 1 km long cable, which attenuates the signal 0.04 dB/meter.…
A: Given : Power of signal sent over 1km, Pi = 100 mW Attenuation per meter, k = 0.04 dB/m 1km = 1000 m…
Q: vacuum cleaner makes 60 decibel sound, whisper is 20 decibel, how much louder the vacuum cleaner is?…
A:
Q: For x >> a: 1 x²+a² 1 X = X = || 1+ 1 1 X 22 1 2 1 1+ x2 a² 2 2x3 2 ,2 x2
A: We need the simplify 1x2+a2 for x>>a.
Q: • As you drive by an AM radio station, you notice a sign sayingthat its antenna is 112 m high. If…
A:
Q: The team monitoring a space probe exploring the outer solar system finds that radio transmissions…
A:
Q: The team monitoring a space probe exploring the outer solar system finds that radio transmissions…
A:
Q: The light that plants absorb to perform photosynthesis has a wavelength that peaks near 675 nm.…
A:
Q: The range for audible sound for the human ear is 120HZ to 150HZ 200HZ to 200,000HZ 20HZ to 20,000HZ…
A: Frequency is defined as the number of circumstances of a repeating event for every unit of time.…
Q: The frequencies of the ( 6943 Angstroms .5 * ) is equal • 4 x 1014 HZ () • 321 x 1014 HZ O • 712 x…
A: Given The wavelength of the wave is λ = 6943 A = 6943 x 10-10 m. The frequency of the wave is…
Q: Carrier waves are transmitted through where?
A: Question: Carrier waves are transmitted through where?
Q: The human ear can respond to an extremely large range of intensities - the quietest sound the ear…
A:
Q: What signal is plotted above? (a) u(t) – u(-t) (b) u(-t) – u(t) (c) 2u(t) – u(-t) (d) u(-t) – 2u(t)
A: u(t) = 1 when t>= 0 and 0 when t<0 u(-t) = 1 when t <= 0 and 0 when t>0 So, u(-t)-u(t)…
Q: Airplane passengers hate the loud noise produced by airplane engines. Like all sound waves, these…
A: a) Anti sound headphones using the phenomenon of destructive interference reduce the noise level.…
Q: A pipeline of length 20 km is used for transmission of water. If the 100 kW power is to be…
A:
Q: Equal loudness curves represent the results of measurements of A absolute threshold. B…
A: The equal loudness is often referred to as Fletcher Muson Curve. Which is related to physics and he…
Q: In laser eye surgery, each laser pulse has power of 70 kW. The beam focuses on a circle of 0.5 mm…
A: GivenPower of each Laser pulse ,P=70 kWRadius of circle ,r=0.5 mm
Q: An antenna is designed with a center frequency of 9.35 GHz. If the lowest frequency versus the…
A: In this question we have to determine the bandwidth of the antenna. Please give positive feedback if…
Q: One person has a threshold of hearing of 5dB, and another of 10dB. Which person has the more acute…
A:
Q: A radar used to detect the presence of aircraft receives a pulse that has reflected off an object…
A:
Q: A radar used to detect the presence of aircraft receives a pulse that has reflected off an object…
A: Given Let the total time taken ,a pulse that has reflected off an object(d) =5.5 * 10^-5 seconds we…
Q: Airplane passengers hate the loud noise produced by airplane engines. Like all sound waves, these…
A:
Q: a state highway patrol car radar unit uses a frequency of 9.00*10^9 Hz. What frequency difference…
A:
Q: In laser eye surgery, each laser pulse has power of 70 kW. The beam focuses on a circle of 0.6 mm…
A: Given Power of laser pulse = 70 kW Radius of circle on which light is focused = 0.6 mm We have to…
Q: approximately how long would it take a telephone signal to travel 3000 miles from coast to coast…
A: Given data The distance between the coast to coast across the United States is: D = 3000 miles The…
Q: How sound waves transmitted to the ear?
A:
Q: What is the 3rd and 5th overtone of 25MHZ signal?
A:
Q: The mean optical power launched into an optical fiber link is 1.5uw and the fiber has attenuation of…
A: Given: Mean optical power launched into an optical fiber link = 1.5×10-3 wMinimum mean optical power…
Q: How many times louder would a 68.0 dB sound be compared to a 48.0 dB sound?
A: here, L2=68.0 dBL1=48.0 dB
Q: When a television news anchor in a studio speaks to areporter in a distant country, there is…
A: The communication between the anchor and the report are using radio waves for transferring and…
Q: If sound travels 262 miles in 5 minutes how far does it travel per minute?
A: Given Distance ,D = 262 miles Time taken ,T = 5 minutes Speed , V = distance travel per minute
Q: The audible range for sound is O 20HZ to 20,000HZ
A: The energy which enables us to hear is called sound waves of audible range. There are three types of…
Q: In half-wave rectification, what is the output frequency if the input frequency is 50 Hz. What is…
A:
Q: (a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength?…
A:
What is the bandwidth of
(a) speech
(b) telephone audio
(c) video
(d) human ears
Step by step
Solved in 2 steps
- The auditory canal of the human ear extends about 2.5 cm from the outer ear to the eardrum.a) Explain why the human ear is especially sensitive to sounds with frequencies close to 3500 Hz. Use v = 344m / s. b) Would you expect the ear to be especially sensitive to frequencies near 7000 Hz?At 10,500 Hz? Why?What is the signal range for brain EEG recorded on the scalp? 10^1 - 10^3 V 10^-5 - 10^-3 V O 10^-5 - 10^-1 V O 10^-4 - 10^-2 VWhat is the theoretical capacity of a channel in each of the following cases?(a)Bandwidth: 20 KHz SNRdB = 40 dB (b)Bandwidth: 200 KHz SNRdB = 4 dB(c)Bandwidth: 1 MHz SNRdB = 20 dB
- la) To enable the broadcast of the ongoing impeachment trial of America president, a transmission engineer had to mix the televise TV Signal with a carrier signal of f(t) = Cosωot. As a communication expert, give and explain four technical reasons why this process should be carried out 1b) If the acceptable hearing level of worshiper in a church service is pegged at 40 x 10-2wm-1. a loud speaker is to be install at 500cm from the pulpit, determine the minimum power level of the loud speaker that must be install 1c) list and briefly explain the three types of modulation scheme and show their respective waveformA human cannot hear sound at a frequency of 100 kHz or sound at 102 kHz. But if you walk into a room in which two sources are emitting sound waves, one at 100 kHz and the other at 102 kHz, you’ll hear sound. Explain.The range for audible sound for the human ear is O120HZ to 150HZ O 200HZ to 200,000HZ 20HZ to 20,000HZ 20HZ to 240HZ
- A mono digital sound sample has a bit depth of 8 bits and a sampling rate of 9000 Hz. How much memory in bytes would it take to store 45 minutes of sound at this quality? Calculate your answer in bytes.b) Compare the Continuous and digital signals by mentioning at least two advantages and disadvantages of both types of signalsBefore all music was available online, but after LPs and 8track, CDs were the common format for recorded music. Give a rationale for the industry standard of recording pieces at 44.1 kHz. What are the benefits and the limitations of this choice?
- 1. A 50-cd point light source is 3.0 inches above the desk. What is the surface lighting on the desk? 2. Consider the situation where an employee spent time in a number of different areas of the plant where he was exposed to a variety of noise levels as shown in the following. Determine his noise dose. Us ehwole number and answer completely. EXPOSURE NOISE LEVEL (dBA) 0.5 100 1 95 2 90 4.5 80What is the directivity index of noise from a machine in the middle of a large room? 0 3 6 9A human cannot hear sound at a frequency of 100 kHz or sound at 102 kHz. But if you into a room in which two sources are emitting sound waves, one at 100 kHz and the other at 102 kHz, you'll hear sound. Why? Explain