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D- Ultrasonic wave Heating
These waves are different from electromagnetic waves . It produces mechanical vibration inside tissue. It is the same as the sound waves but it has much higher frequencies about I MHz with power of several watts per centimeter. It can move the tissue particles backward and forward with high frequency, in doing so it can increase the kinetic energy consequently it heats the tissue.
Ultrasound can be produced by special transducers placed in direct contact with the skin. It is used for relieving tightness and scarring occurring in jointdisease. It can dispose more heat in bones, as bones are better absorber for ultrasonic energy than soft tissue. It is also used in deep therapy.
Two arrows are fired horizontally with the same speed of25.0 m/s. Each arrow has a mass of0.116 kg. One is fired due east and the other due south. Find the magnitude and direction
Are end fitting standard? No, end fitting are not standard. Each system manufacturer favors a type of termination for his fibers along with threads, pressure glands, rivets or
A secondary cell is that cell is which the electrical energy is first up as a chemical energy and when the current is taken from the battery, the chemical power is reconverted into
Car and Truck in Head on Collision Inelastic Collision : Collisions among objects are governed through laws of energy and momentum. Although a collision occurs inside an isol
Boltzmann constant; k (L. Boltzmann) This is a constant that describes the relationship among temperature & kinetic energy for molecules in an ideal gas. This is equal to 1.380
Refractive index: The most important optical measurement for any transparent material is its refractive index (n). The refractive index is the ratio of the speed of light (c)
Do glass or polymer transmits the radiation? There is not a simple answer since it will always depend on the last use and working conditions of the system. Usually speaking gla
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Instantaneous velocity and speed are explained at a given or particular instant and are shown by ,
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