A soldier sees the flash from a cannon that is fired in the distance and 10 seconds later he hears the roar of the cannon. If the air temperature is 33 °C, how far away is the cannon?

Q: At a fireworks show, a physicist measures the time between seeing an explosion and hearing its sound…

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Q: A musical note has a frequency of 512 Hz. The wavelength of this note will be different depending on…

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Q: You place your ear onto a steel railroad track and hear the sound of a distant train through the…

A: Let ta be the time taken to reach the sound through air and ts be the time taken to reach the sound…

Q: A lightening strike 2 km away creates a sound of thunder by making a shock wave in air from the…

A: Distance d = 2 km speed of sound = 340 m/s speed of light = 3 x 10^8 m/s so when thandurstroam took…

Q: Sound will travel the fastest at 20°C in   Air   Wood   Glass   It will travel the same in all…

A: Sound will travel faster in glass because the particle density of glass is much higher than air and…

Q: Source 3 Source 4 40.37 49.81° I 41.67° 31.33° Source 1 Source 2 DENSE MEDIUM

A: The total internal reflection takes place from denser medium to rarer medium and at an angle of…

Q: Sound waves used in ultrasonic imaging have frequencies in the kilohertz range

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Q: What is the frequency of light having a wavelength of 4.50*10-6 cm?

A: Given data:  Wavelength (λ) = 4.50 × 10-6 cm = 4.50 × 10-8 m Required: The frequency (f) of light

Q: If you place a candle directly in front of a large speaker that is playing music, what do your…

A: Sound waves travel due to disturbance in the medium and the particles oscillate around their mean…

Q: Two fire trucks are moving toward each other at a rate of 25m/s. If the first fire truck emits a…

A: Given data: Velocity of source is, v=25 m/s. Actual frequency is, f=10000 Hz. Ambient temperature…

Q: The bells of temple are big in size. Why?

A: The bells of a temple are made big in size, so that they can have a low resonant frequency. The…

Q: A state trooper’s car sends out a radar signal at a frequency of 11.5 GHz. Find the wavelength of…

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Q: Microwaves are part of the electromagnetic spectrum and travel with a speed of 3.00 x 108 m/s, also…

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Q: in many kitchens , a microwave oven is used to cook food . the frequency of the microwaves

A: A microwave passes microwave radiation through the food. This process of absorption of radiation by…

Q: what is theramal energy

A: The energy possessed by a system due to the movement of the particles within the system is known as…

Q: Calculate the temperature of the air if the speed of sound is (a) 355 m/s               (b) 344 m/s

A: Given:  (a) 355 m/s               (b) 344 m/s

Q: A series of ocean waves, 5.0 m between crests, move past at 2.0 waves/s. Find their speed.

A: Given value--- distance between crests = 5m. frequency = 2 Hz. We have to find--- Find their…

Q: What color does blue and yellow make?   A) Green B) Black C) Red D) White

A: Mixing of different colors combination is as given below:

Q: what will happen to speed of sound if temperature decreases? Speed of sound will remain constant…

A: To Answer this we have to know the relationship between the speed of sound with the temperature .

Q: A distant star has a peak wave length of 0.00000062. What is the temperature of that star?

A: T=2.898×10-3 m·Kλmax Let the wavelength be in meter.

Q: A Whirlpool Microwave oven uses light with a wavelength of 0.85 m to cook your food. What is the…

A: 1. As per the given condition, the wavelength of light used in the microwave is 0.85 m  λ= 0.85 mand…

Q: A Kundt's tube apparatus has a copper rod of length 1.0 m clamped at 25 cm from one of the ends. The…

A: Speed of sound in air,

Q: what is the frequency of light with a wavelenght of 5.10x10-7m

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Q: What is the wavelength of 2.5 kilohertz sound wave traveling at 326m/s through air

A: wavelength

Q: 6. Long Wavelengths of light have what kind of frequency? 1 Higher frequencies Lower frequencies All…

A: The frequency of the wave is inversely proportional to its wavelength. This means that…

Q: You place your ear onto a steel railroad track and hear the sound of a distant train through the…

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Q: What color is reflected from a surface that is painted with a mixture of cyan and magenta paint?…

A: solution is given as

Q: Decibel is the unit of   A) speed of light B) intensity of sound C) intensity of heat D) None of…

A: Decibel is the unit to measure the intensity of sound.

Q: A point source emits sound waves with a power output of 100 watts. Calculate the sound level at a…

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Q: What is wavelenght of wave that has a frequency of 1Hz and travels at 300,000km/s?

A: Given:- Frequency (f)=1 HZ 1Hz = 1 wave/second speed of light = 300,000 km/s Find wavelenght. Now,…

Q: The units for wave frequency are measured in O 1. Seconds Hertz O2. O 3. grams O 4. m/s

A: The frequency of sound waves is defined as  Number of oscillations per unit time.

Q: Color Black Brown Red Orange Yellow Green Blue Violet Gray White Significant figures 0 1 2 3 4 5 6 7…

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Q: Describe the resulting colors when the following lights are mixed together: Red and blue light…

A: Answers  1. Magneta 2. Cyan 3. Black

Q: Radian is used to measure   A) Temperature B) Intensity of Flame C) Angle D) Solid Angle

A: Radian is the unit of  plane angle, which is given by following formula: Angle=Arcradius   Whereas,…

Q: Velocity of sound………with temperature

A: Answer               A  increase

Q: A bat, moving at 3 m/s, is chasing a flying insect. If the bat emits a 40-kHz chirp and receives…

A: Given that, f0=40 kHzf''=40.7 kHzc=343 m/sv1=3 m/s we know that, The sound waves that travel towards…

Q: What is the frequency with the most intense radiation from the pot?

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Q: at 6:30 AM the shadow of a building is 18 meters. at the same time the shadow of an 8 meter high…

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Q: A wave generator produces 40 waves in 10 seconds. 6 full wavelengths are measured to be about 30…

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Q: What is the speed of sound at a temperature of 300 K?

A: Given data The temperature is given as T = 300 K.   The mathematical expression to calculate the…

Q: the speed of sound in air a. is proportional to the fourth power of temperature b. decreases with…

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Q: what is the direct relationship between temperature and speed of sound?

A: There is a simple relationship between temperature and the speed of sound. The speed of sound…

Q: The Doppler effect is observed when the source of the sound is moving ____ than the speed of the…

A: Doppler effect is the change in frequency of a wave in relation to an observer who is moving…