A pendulum has a period of 5 seconds. What is its frequency? 0.2 Hz 5 Hz 25 Hz 1 MHz

Q: dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of…

A: Given data :     Depth of the ocean = 430 m     Temperature of sea water = 25°C Speed of sound in…

Q: A stone is dropped into a well. The sound of the splash is heard 5.16 s later. What is the depth of…

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Q: During a thunder storm over the summer, you want to estimate the distance in kilometers (not miles!)…

A: During a thunder storm over the summer, if we want to estimate the distance in kilometers of a flash…

Q: have a frequency of 11 Hz and a wavelength of 5 meters. w

A: Given values:- Frequency of water wave,(f)=11 Hz -----(1) Wavelength of water wave,(λ)=5 m----(2)…

Q: 29. Ocean waves lap against a deserted beach once every 5 seconds. If there are about 10 meters…

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Q: A sewing machine needle moves with a frequency of 2.5 Hz. Approximately how long does it take it to…

A: GivenFrequency f = 2.5 Hz

Q: a wave has a wavelength of 2 m and a frequency of 20 Hz, what is the speed of the wave A 10 m/s В 18…

A: Given value--- wavelength = 2 m . frequency = 20 Hz. We have to find--- wave speed ?

Q: pendulum has a period of 400 milliseconds. Determine the frequency of the pendulum in hertz

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Q: Jason heartbeat is 65 per minute what is the frequency is his heartbeat in n hertz

A: Given : No. of beats(N) = 65 Time (t) = 1 minute = 60 seconds

Q: A wave traveling 73 m/s has a wavelength of 3.4 m. What is the frequency of the wave (in Hz)?  Hz

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Q: water waves have a frequency of 10 Hz and a wavelength of 4 meters. What is the period of the waves?

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Q: How long of a pendulum is needed to have a period of ?1 second :Select one а. 50cm b. 25cm С. 40cm…

A: The time period of a simple pendulum isT=2πLg

Q: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1220 Hz. The…

A: Frequency of sound emitted by a bird (f) = 1220 Hz Frequency heard by a stationary bird watcher (f')…

Q: The wavelength of a stationary wave is 4 cm. The distance between two adjacent nodes of the wave is…

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Q: A pendulum has a period of 5 seconds. What is it's frequency

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Q: An ambulance moving at 42 m/s sounds its siren whose frequency is 413 Hz. A car is moving in the…

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Q: A  spring  stretches  by  0.070  meter when  a  500  gram  object  is  suspended  from it. Find  the…

A: Given: The mass of the object is 500 g. The stretching in the spring is 0.07 m.

Q: The speed of sound in air at 0∘is: A) 331 m/s B) 330 m/s C) 330 ms D) 331 ms

A: The speed of sound varies with the temperature.  The speed of sound in air at 0 degree C is nearly…

Q: A ½ kg mass is attached to a spring. The spring has a spring constant of 200 N/m. The mass is pulled…

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Q: A musical instrument produces a frequency of 450 Hz when it vibrates in the fifth harmonic. The…

A: Given value--- fifth harmonic frequency = 450 Hz. We have to find--- fundamental frequency?

Q: A bus is moving with a velocity of 5 m/s towards a huge wall. The driver sounds a horn of frequency…

A: Given, Velocity of bus, Vs = 5 m/s Speed of sound in air, V = 335 m/s The driver sounds a horn of…

Q: .The intensity of sound waves is proportional to the square of the frequency True False

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Q: A sound wave has a frequency of 15,250 Hz and travels 22.15 m in 11.85 s. What is the velocity of…

A: Write the given values with suitable variables. f=15250 Hzd=22.15 mt=11.85 s Here, f denotes the…

Q: A spring with an 8.3-kg mass is pulled back 0.31 m. If its frequency is 4.2 Hz, then find the…

A: The mass of the spring is m = 8.3 kg. The frequency is f = 4.2 Hz. The time t = 0.55 s. The…

Q: A musician wishes to construct a metronome based on a simple pendulum design where a "beat" is…

A: Ans:- Image-1

Q: If a wave has a frequency of 3.5 x 105 Hz, what is the period?

A: Frequency, f=3.5 x 105 Hz

Q: A clock fitted with a pendulum and another with a spring indicate correct time on earth. Which shows…

A: Given: A clock fitted with a pendulum and another with a spring They indicate the correct time on…

Q: Determine the frequency of a pendulum makes 125 vibrations in 3 minutes

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Q: An oscillator creates periodic waves on two strings made of the same material. The tension is the…

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Q: A stone is dropped into a well. The sound of the splash is heard 2.76 s later. What is the depth of…

A:

Q: The intensity of sound waves is proportional to the square of the .frequency True False

A: As per our company guidelines we are supposed to answer ?️only first 3 question. Kindly repost…

Q: At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down…

A: We know the Doppler's Equation to find the Speed of car f0= fsv+v0v+vsv0 is the speed of bicyclist…

Q: A jogger hears a car alarm and decides to investigate. While running toward the car, she hears an…

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Q: Wavelength of ultrasonic waves in air is of the order of : (a) 5 x 10- m () 5x 10' m (6) 5 x 10' m…

A: To find  Order of wavelength of ultrasonic waves in air Calculation We know that frequency of…

Q: Water waves have a frequency of 11 Hz and a wavelength of 5 meters. What is the period of these…

A: Given data:  Frequency (f) = 11 Hz Wavelength (λ) = 5 m Required: Period (T)

Q: Pressing down a key on a piano makes a hammer strike a string. The fundamental frequency of a piano…

A: Pressing down a key on a piano makes a hammer strkes a string.

Q: A stone is dropped into a well. The sound of the splash is heard 6.07 s later. What is the depth of…

A:

Q: Increasing the period the frequency increases doesn't change decreases

A: The frequency is the reciprocal of the period

Q: amplitudes are associated with ________ sounds. A) higher; quieter B) higher; louder C) higher;…

A: We know that  The intensity of the wave is proportional to the square of wave amplitude. If the…

Q: For sound waves, different amplitudes mean different (a) loudness (b) pitches (c) (d) speeds. (e)…

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Q: What is the period of a wave that has frequency of 300 Hz

A: in this question we use time period equation.

Q: The period of a simple pendulum depends on In order to triple the period of the simple pendulum,…

A: Given data: A simple pendulum New period (T') = 3T Required: New length of the simple pendulum (L')

Q: A pin with a mass of 0.15 g falls from rest on a table 1.0 m high.When striking the ground, 0.02% of…

A: The pin has a potential energy PE = mgh. When it falls onto the ground all its PE is converted into…

Q: The pendulum on a cuckoo clock is 3.91 cm long. What is its frequency (in Hz)? Hz

A: Given data:  Length of pendulum (L) = 3.91 cm = 0.0391 m Acceleration due to gravity (g) = 9.81 m/s2

Q: A car horn has a frequency of 720 Hz. In which of the following situations would you hear an average…

A: Given that The original frequency of car horn is fo = 720 Hz Observed frequency is f = 690 Hz

Q: Two cars A & B are travelling towards one another and blowing their horns. You are sitting in car A…

A: Answer:-  Given  Speed of car A (Va) = 27.2 m/s  Speed of car B (Vb) = 24.2 m/s  Frequency of car…

Q: The speed of sound in day time is more than speed of sound in night time, because of: a. more…

A:

Q: An ambulance moving at 38 m/s sounds its siren whose frequency is 443 Hz. A car is moving in the…

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Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.