How many hertz can a human ear hear?

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Description : Humans can hear in the range of --- to ----Hertz (Hz).? A. 10 Hz to 10,000 Hz. B. 20 Hz to 20,000 Hz? C. 30 Hz to 30,000 Hz. D. 40 Hz to 40,000 Hz.

Last Answer : B. 20 Hz to 20,000 Hz?

Description : What does it mean when you hear someone whisper in your ear?

Last Answer : answer:Since you seem to want some supernatural stuff I would go with your brain giving you what you want. But you can totally hear things that aren’t there. I wake up to banging on my door and my mom screaming for help. I don’t live with my mom. This is why I have to sleep with the tv on.

Description : Qtip too far, dull discomfort in right ear but can still hear out of it?

Last Answer : you might have shoved some ear wax deeper in the ear… A doctor can remove this if that is the case…P.S. don’t use a Qtip in your ear to take it out…Qtips are not for the inner-ear

Description : How is it that you can hear the sound of the sea when you hold a large seashell up to your ear?

Last Answer : You can’t, it just sounds kind of like the ocean when the sounds around you are processed in the shell’s chambers.

Description : What could be causing my ear to ring whenever I hear a high pitched noise?

Last Answer : There is more than one possible problem. You really will need to see a doctor, perhaps an ENT specialist.

Description : I have one ear, but cannot hear. I have golden hair but no head. What am I? -Riddles

Last Answer : Corn.

Description : How do people know that the ear move in it in the inner hear and if people look at the dead and see inside their ear their dead and you don't know if it moves so i want answers people?

Last Answer : insetering

Description : Is it normal when I plug my ears, do I feel / "I hear" my heart beating?

Last Answer : "Yes. I can imagine 2 explanations. The earplug creates a connection between the drum in the ear and the blood vessels, so it can amplify the heartbeat. The other idea is that you have a voice even ... most of the noise in the environment is filtered out by the earplugs, and so it can be heard."

Description : We have before vacation and in the evening we leave for Croatia. They were my ear and a lot, and according to my mother, it's not from the pool, I don't have a fever, and when I call, my ears were a lot, and also when I pull the protrusion on my body. I do not know what to do :(((

Last Answer : Need Answer

Description : What is the range, in hertz, of the normal human hearing?

Last Answer : 20 Hz to 20 kHz

Description : The sounds of which frequency are human beings most sensitive? A. 400 hertz B. 20 hertz C. 20000 hertz D. 5000 hertz (Answer)

Last Answer : D. 5000 hertz (Answer)

Description : What does the Hertz (Hz) designation in LCD TV specs mean?

Last Answer : The refresh rate of the picture; as the screen is drawn , the pixels are refreshed a certain number of times per second, thus refresh rate. Rate is measured in cycles per second and ... , as some camera technologies suffer from refresh issues when acquiring the image (CMOS sensors in particular).

Description : How To Save Money With A Hertz Car Rental?

Last Answer : Hertz is the most recognizable name in the rental car industry.This leads to a lot of volume. Unfortunately, it also leads tohigher prices. Hertz is known for superb quality and service;therefore, higher prices can ... you're not going to be nearan airport, you can save as much as $10 per day and $3

Description : What is the AAA membership rental car discount for Hertz?

Last Answer : According to AAA website, the discount varies depending upon a number of factors, they state the discount is 5-20% savings on Hertz rentals worldwide.

Description : Do I need special insurance to rent an automobile from Hertz rental?

Last Answer : When renting an automobile from Hertz you will be offered the opportunity to take out Insurance for the time that you will be renting the car. It is a good idea to do so since your own auto insurance may not cover specific damages or losses.

Description : Does Hertz offer cheap car rentals?

Last Answer : Yes, Hertz does offer cheap car rentals. They offer many discounts that apply to different persons. They also have a great selection of car in different size ranges from sedan, coupe, and more. You can find the car that fits you for a great price.

Description : Hertz?

Last Answer : Free Gift with Purchase

Description : The ambulance is moving toward you and your sound technology measures the pitch at 645 hertz. The speed of the ambulance is therefore ______ m/s.?

Last Answer : *this is the full question not the answer* Suppose you’re standing on a sidewalk and down the street is an ambulance parked; it’s siren is a 600 Hz sound like it louder, Quieter, louder, quieter ... do use the facts given above to answer this:The ambulance is moving toward you and your sound te

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as

Last Answer : Audible sounds

Description : Which of the following are the best units of data on an external storage device? A) Bits B) Bytes C) Hertz D) Clock cycles

Last Answer : Answer : B

Description : What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz

Last Answer : (4) Hertz Explanation: The number of waves or vibrations passing through a point in one second is called Frequency. The SI (System International) Unit of Frequency is Hertz(Hz).

Description : Which term is not associated with sound wave? (1) Hertz (2) Decibel (3) Candela (4) Mach

Last Answer : (3) Candela Explanation: Candela is the standard unit of luminous intensity, the luminous power per unit solid angle emitted by a point light source in a particular direction, in the International System of Units. The word candela means candle in Latin.

Description : Which of the following is the unit of perceived loudness of sound? (1) Decibel (2) Sone (3) Hertz (4) Phon

Last Answer : (2) Sone Explanation: Loudness is a subjective characteristic of a sound (as opposed to the sound-pressure level in decibels, which is objective and directly measurable). Perceived loudness of sound ... on sound pressure level, the frequency spectrum, and the time behavior of the sound in question.

Description : Hertz is a unit for measuring – (1) Intensity of waves (2) Frequency of waves (3) Wavelength (4) Clarity of waves

Last Answer : (2) Frequency of waves

Description : The scientist who first sent electromagnetic waves to distant places is – (1) James Clerk Maxwell (2) Heinrich Hertz (3) Thomas Alva Edison (4) John Logie Baird

Last Answer : (3) Thomas Alva Edison Explanation: Radio is the transmission of single through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. Those waves are called radio waves.

Description : The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

Last Answer : (1) Decibel Explanation: The decibel (dB) is the unit used to measure the intensity of sound or noise level. It is given in terms of a logarithmic function of a ratio of power intensities. One ... one bel, named in honor of Alexander Graham Bell who was the inventor of the telephone and phonograph.

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as – (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Last Answer : (1) Audible sounds Explanation: An audio frequency is characterized as a periodic vibration whose frequency is audible to the average human. It is the property of sound that most determines ... 000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.

Description : The refresh rate of monitor is measured in _______ A. byte B. seconds C. Hertz D. None of the Above

Last Answer : C. Hertz

Description : What will be the frequency of a three-phase, six pole, AC generator operating at 1800 revolutions per minute? A. 60 hertz B. 90 hertz C. 120 hertz D. 180 hertz

Last Answer : Answer: B

Description : A turbogenerator has a rated output of 1200 KW at 60 Hertz, with a no load frequency of 61.5 Hertz. What is its speed droop? A. 1.03% B. 1.50% C. 2.44% D. 2.50%

Last Answer : Answer: D

Description : A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Last Answer : Answer: A

Description : An electrical component is connected across a 120 volt 60 hertz AC supply. What is the current drawn by the component if the impedance is 200 ohms? A. 0.01 amperes B. 0.60 amperes C. 1.67 amperes D. 100 amperes

Last Answer : Answer: B

Description : An alternator is being paralleled with one on the line. At the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally _____________. A. increase B. not change C. decrease D. be exactly 60 hertz

Last Answer : Answer: C

Description : The unit 'hertz' is equivalent to _____________. A. coulombs per second B. revolutions per second C. revolutions per minute D. cycles per second

Last Answer : Answer: D

Description : If there is a reduction in the normally supplied frequency to a 120/240 volt, threephase AC current motor from 60 hertz to 55 hertz, the motor would _____________. A. run at a slower speed B. operate at a lower current C. overheat D. trip off the line

Last Answer : Answer: A

Description : The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the _____________. A. prime mover speed B. exciter output voltage C. load on the alternator D. number of poles

Last Answer : Answer: B

Description : Which antenna does not use the ground? A. Marconi B. Yagi C. Hertz D. Rhombic

Last Answer : B. Yagi

Description : Which antenna is not grounded at one end? A. Hertz B. Marconi C. Dipole D. Whip

Last Answer : C. Dipole

Description : The effect of adding parasitic elements of a Hertz dipole is to A. make the antenna more omnidirectional B. reduce its resonant frequency C. increase the antenna’s power gain D. All of these

Last Answer : C. increase the antenna’s power gain

Description : A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic? A. 727 kHz B. 6546 kHz C. 436 kHz D. 6.546 kHz

Last Answer : B. 6546 kHz

Description : In order to get maximum radiation to all surrounding points in the horizontal plane, the antenna used is a A. vertical loop B. vertical quarter-wavelength rod C. array which includes parasitic elements D. a horizontal Hertz dipole

Last Answer : B. vertical quarter-wavelength rod

Description : If the length of a Hertz dipole is decreased A. its resonant frequency will be lowered its distributed inductance will be increased B. its distributed inductance will be decreased C. its ... frequency will be increased D. its distributed capacitance between the antenna and ground will be increased.

Last Answer : C. its resonant frequency will be increased

Description : Which of the following antennas receive signals in the horizontal plane equality well from all directions? A. Horizontal Hertz antenna B. Vertical loop antenna C. Vertical Yagi antenna D. A vertical antenna which is a quarter-wavelength long

Last Answer : D. A vertical antenna which is a quarter-wavelength long

Description : How is it possible to lower the resonant frequency of Hertz dipole antenna? A. By reducing the frequency at the transmitter B. By connecting a capacitor in series with the antenna C. By the connecting a resistor in series with the antenna D. By connecting an inductor in series with the antenna

Last Answer : D. By connecting an inductor in series with the antenna

Description : Which of the following antennas require good grounding? A. Yagi antenna B. Hertz antenna C. Marconi antenna D. Isotropic antenna

Last Answer : C. Marconi antenna

Description : In what year did Hertz discover radio waves? A. 1844 B. 1873 C. 1887 D. 1895

Last Answer : C. 1887

Description : The electromagnetic radiation theory was profounded by A. Sir Edward Appleton B. Guglielmo Marconi C. Heinrich Hertz D. James C. Maxwell

Last Answer : D. James C. Maxwell

Description : This is a flexible vertical rod antenna commonly used on mobiles. A. Marconi B. Hertz C. Whip D. Ground plane

Last Answer : C. Whip

Description : Where do the maximum current and minimum voltage values on a resonant Hertz dipole exist? A. Center of the antenna B. Near the end of the antenna C. Near the center of the antenna D. Ends of the antenna

Last Answer : A. Center of the antenna

Description : Two wires that are bent 90 degrees apart. A. Hertz B. Dipole C. Log-periodic D. Rhomic

Last Answer : B. Dipole