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Boat A is travelling at 4.6 m/s. Boat B is moving away from boat A at 9.2 m/s, as shown in the figure below.
The captain of boat B blows an air horn with a frequency of 550 Hz. What frequency does boat A hear?
Use 343 m/s for the speed of sound.
What is the definition of fringes
Energy is defined as internal capacity of doing work. When we call that a body has energy we denote that it can do work. Energy seems in many forms such as electrical, mechanica
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What are the types of fibre optics?
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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
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