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The Doppler shift of ultrasonic waves can gauge the speed of blood in an artery. If the frequency of the stationary source is 100 kHz and the reflected sound has a Doppler shift of 200 Hz, Determine is the blood flow speed? (The speed of sound inside the body is 1 500m/s.)
A. 1.0 m/s
B. 1.5 m/s
C. 2.2 m/s
D. 3.3 m/s
A mass m equals 4 kg on a slanted surface theta equals 30 degrees. A light rigid cord runs from mass m to pully beta equals 1/2, calculate the magnitude of the systems acceleration
a railroad car of mass 2.50 104 kg moving at 2.00 ms collides and couples with two coupled railroad cars each of the
a jet airliner moving initially at 300 mih due east enters a region where the wind is blowing at 105 mih in a direction
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates, Determine the work done by the net external force acting on the skier
You have a set of converging lenses with focal lengths 2.00 cm, 12.0 cm, 58.5 cm, and 77.5cm. What is the angular magnification of the telescope
A mass of gas occupies a volume of 4.3 L at a pressure of 1.8 atm and a temperature of 345 K. Determine the final pressure
A 62-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109N/m2) tow rope that is attached to a boat. What is the change in length of the rope when the skier has an acceleration whose magnitude is 0.49 m/s2
A system gains 2850 J of heat at a constant pressure of 1.32 × 105 Pa, and its internal energy increases by 4100 J. What is the change in the volume of the system
you want the current amplitude through a inductor with an inductance of 4.10mh part of the circuitry for a radio
The maximum charge on the capacitor in an oscillating LC circuit is Q0. What is the capacitor charge, in terms of Q0, when the energy in the capacitor's electric field equals the energy in the inductor's magnetic field? Give your answer in terms of Q..
Suppose you have a solution that contains 0.0490 M Ca2 and 0.0940 M Ag, When the second cation just starts to precipitate, what percentage of the first cation remains in solution
A vertical spring stretches 4.2 cm when a 14-g object is hung from it. The object is replaced with a block of mass 22 g that oscillates up and down in simple harmonic motion. Calculate the period of motion. ____s . Use the given information to find t..
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