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How ultrasonic waves are generated?
How velocity of ultrasonic waves are measured by interferometric method?
What are the different methods of recording and reproduction of sound waves ? how many kinds of microphone?
A light bulb has a resistance of 260 . It is connected to a standard wall socket (120 V rms, 60.0 Hz, Determine the rms current in the bulb
In the modern world, few Americans grow up in the traditional nuclear family. The high divorce rate has led to an increase of blended families in which one or both partners have children from previous relationships that will need to blend into the..
Determine the angle theta¸ (in degrees) if the two positions of the first order spectral line are 38.0 cm and 62.0 cm. Assume the distance from the diffraction grating to the slit is 55 cm
Power lines at 20,000V (rms) are connected to a utility pole transformer. Find the ratio of the number of turns in the primary to the number of turns in the secondary
Initially the first wheel is turning at 30rad/s. The second is at rest, the clutch is then operated, so that wheels turn together, what is the common angular speed.
A vertical straight wire carrying and upward 24-A current exerts an attractive force per unit length of 8.8 X 10-4 N/m on a secon parallel wire 7.0 cm away
A red laser emits photons with a wavelength of 635 nm. If this laser has a power of 23 W, how many photons does it emit in 1 s? If the light emitted by the laser is absorbed with a black sail, what is the force on the sail?
A cannon shoots a ball with initial speed 10 m/s at an angle of 30 degrees. How far from the cannon does the ball hit the ground
In a series circuit, a generator (1436 Hz, 14.7 V) is connected to a 15.2-? resistor, a 3.85-µF capacitor, and a 5.47-mH inductor. Find the voltage across each circuit element
What is the velocity of the AB pair after A collides with B? How much did the temperature of the 100 kg steel coupler (originally 293 K) change as a result of the collision? The specific heat of steel is 0.466 J/kg.k
The crystalline lens of the eye is double convex and has a typical index of refraction of 1.43. Find the max and min power (in diopters) of the crystalline lens if it were in air
A box of books weighing 309 Newton moves with a constant velocity across the floor when it is pushed with a force of 376 Newton exerted downward at an angle of 39.5 degree below the horizontal
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