Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying ultrasonic sound over the affected area of the body. The sound transducer (generator) is circular with a radius of 1.74 cm, and it produces a sound intensity of 5.18 x 10³ W/m². How much time is required for the transducer to emit 3530 J of sound energy?

Q: Waves travel along a 100-m length of string which has a mass of 55 grams and is held taut with a…

A:

Q: A spaceship is approaching a space station at a speed of 1.60 ✕ 105 m/s. The space station has a…

A: Given data: u = 1.60 ✕ 105 m/s fs = 5.94 ✕ 1014 Hz c= 2.9979 ✕ 108 m/s Need to determine the…

Q: High‑intensity focused ultrasound (HIFU) is one treatment for certain types of cancer. During the…

A:

Q: A loudspeaker has a frequency of 1000Hz to 2000Hz. An open open pipe is near the loudspeaker. The…

A: Given f=1000-2000 Hz L=45.7cm v=344 m/s

Q: Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying…

A: Given data: The radius of the transducer, r=1.20 cm=0.012 m The intensity of sound produced,…

Q: The light intensity (2.80418x10^2) cm from a point source is (1.28990x10^0) kW/m². What is the…

A:

Q: Energy from the Sun arrives at the top of the Earth’s atmosphere with an intensity of 1.30 kW/m2 .…

A: The intensity is given by, I=PA Here, P is the power and A is the area. The power is given by, P=Et…

Q: A speed radar aims microwaves with a frequency of 20 GHz at an incoming vehicle traveling at 135…

A: Given, Origianl frequency of the microwaves emitted by the speed radar is  f0=20GHz=20×109Hz Speed…

Q: A geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and…

A: The speed of the sound in seawater at is The echo time is The time taken by signal to travel from…

Q: Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.38 kW/m2.…

A: Given: Energy intensity, I=1.38 kW/m2=1380 W/m2. Area, A=3.53 m2. Energy, E=1.78x109 J. Required:…

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A: The efficiency of the good cell,   The average rate of power,   The average intensity of solar…

Q: The intensity at a distance of 6.0m from a source that is radiating equally in all directions is…

A: Radius, r = 6 mIntensity, I = 6×10-10 W/m²Power emitted, P = ?

Q: A 4.2 m pipe that is closed at one end emits a 357 Hz wave that has a wavelength of 0.8 m. Determine…

A:

Q: A bowl of bulalo is being heated in a microwave oven. The effective area of the bulalo that is…

A: The heat is given by  H = m c (T' - T)

Q: An ambulance traveling at a speed of 20.0 m/s sounds its siren, which has a frequency of 2. 00 · 10°…

A:

Q: The figure below shows wave fronts of sound waves from the siren of a police car. Two people on both…

A:

Q: The intensity of electromagnetic waves from the sun is 1.4 kW/m2 just above the earth’s atmosphere.…

A:

Q: 5, The intensity of a light is 750 W/m² at 10 m away from the light source. What is the intensity of…

A: The intensity of a light at a distance d is given by I = PArea, where P is the total power, Area is…

Q: 1. A transverse wave on a string is modeled with the wave function: y(x,t) = (1.00 cm)sin(3.00m-x-…

A:

Q: Energy from the Sun arrives at the top of the Earth’s atmosphere with an intensity of 1.30 kW/m2.…

A: Given:   Intensity of light, I = 1.30 kW/m2 Energy, E = 1.8×109 J Area, A = 1.00 m2

Q: AM radio signals are broadcast at frequencies between 550 kHz (kilohertz) and 1600 kHz and travel at…

A:

Q: dish of lasagna is being heated in a microwave oven. The effective area of the lasagna that is…

A:

Q: The sun emits light (which we can regard as a sinusoidal wave) equally in all directions. The…

A: Given: The distance between sun and earth is d=1.50×1011 m. The intensity of light is I=1.36 kW/m2.…

Q: High‑intensity focused ultrasound (HIFU) is one treatment for certain types of cancer. During the…

A: We have to use some basic formula.

Q: A sound wave has an intensity level of 118.8 dB in air. The density of air at 20.0°C is ρ = 1.20…

A: Given intensity level of sound =β = 118.8 dB density of air = ρ = 1.20 kg/m3 speed of sound = v =…

Q: Light is an electromagnetic wave and travels at a speed of 3.00 × 10° m/s. The human eye is most…

A: Given  Speed of light =c= 3*108 m/sec  Wavelength = lambda = 5.55*10-7 m  Frequency =f=????

Q: On its highest power setting, a certain microwave oven projects 1.00 kW of microwaves onto a 30.0 by…

A: Given data The Highest power setting of the microwave is given as P = 1 kW = 1 x 103 W. The area of…

Q: Dolphins rely on echolocation to be able to survive in the ocean. In a 20∘C20∘C ocean, a dolphin…

A:

Q: nign. windows, door, 1.2 m x 2 m. wide. Each surface has an Absorption coefficient of 1,000 Hz as…

A: Absorption coefficient: Absorption coefficient definitions. a measure of the rate at which…

Q: Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying…

A: Intensity is amount of energy flowing per unit area per unit time I=E/At

Q: A 1.20 m long tube is closed at one end. At the open end there is a sound wave generator whose…

A:

Q: A bowl of bulalo is being heated in a microwave oven. The effective area of the bulalo that is…

A: Area of the microwave is A = 1.6 x 10-2 m2 Mass of the bulalo is m = 0.25 kg Specific heat capacity…

Q: Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.30 kW/m2.…

A: Intensity of sunlight reaching Earth's atmosphere (I) = 1300 W m-2Total energy (E) = 2.39×109 JArea…

Q: Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.3 kW/m². How…

A: Given, the intensity of the energy from the Sun arriving at the top of the Earth's atmosphere: I =…

Q: A light bulb radiates isotropically (the same in all directions). At a distance r from the bulb, the…

A: Given that :Total power radiated by the bulb Intensity of light at distance

Q: During maneuvers in the northern Pacific Ocean, two attack submarines are heading straight for each…

A: Given Speed of the first submarine v1 = 30 km/h Speed of the second submarine v2 = 75 km/h Speed of…

Q: The speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a…

A: frequency = f = 440 Hz wavelength = λ = 0.82 m

Q: Police uses a 33.4 GHz radar gun to measure the car speed. A moving car makes a 30° angle with the…

A:

Q: A typical adult ear has a surface area of 1.41 × 10-3 m2. The sound intensity during a normal…

A:

Q: The speed of electromagnetic waves in air is 3.0 × 108 m/s. What is the wavelength of FM radio waves…

A:

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A:

Q: (a) If P bulb is the radiated power, and r is the radius of the circle, which expression gives the…

A: **as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: A violin string with a length of 50 cm and a linear density of 0.650 grams/m  placed next to a…

A: Given:  Length of string L=50, Linear density 0.65 g/m Violin string is set at 880-1420Hz To find:…

Q: A spaceship is approaching a space station at a speed of 2.00 × 10° m/s. The space station has a…

A: (a) The frequency of the beacon observed on the spaceship is fs=f0cc-v=5.97×1014Hz2.9979×108…

Q: A source emits sound waves isotropically.  The intensity of the waves 2.50 m from the source is 1.91…

A: Given, Intensity,I=1.91×10-4W/m2Radius,R=2.50m We have to calculate the power of the source, We know…

Q: A 71.19 kHz ultrasound wave was aimed at the blood vessels moving towards the machine. If the…

A: Required : Change in the ultrasound frequency.

Q: A 1.20 m long tube is closed at one end. At the open end there is a sound wave generator whose…

A:

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.