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An ultrasound unit is being used to measure a patient's heartbeat by combining the emitted 2.0 MHz signal with the sound waves reflected from the moving tissue of one point on the heart. The beat frequency between the two signals has a maximum value of 520 Hz. What is the maximum speed of the heart tissue? Assume that vsound=1540 m/s in blood.
A 62.9 kg ice skater moving to the right with a velocity of 2.07 m/s throws a 0.193 kg snow- ball to the right with a velocity of 31.6 m/s relative to the ground. What is the velocity of the ice skater
The expression found in part (d) is a cubic equation. There are standard algebraic solutions to this type of equation, but it is sometime quicker and easier to use other methods. explain a way to get a reasonably accurate estimate of v (say, to th..
question1a 35 kg uniform ladder is leaned against a building. the 5 meter tall ladder makes an angle of 60 degrees with
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
A helicopter is ascending vertically with a speed of 5.03m/s. How much time does it take for the package to reach the ground
The molecule has a rotational kinetic energy that is of the translational kinetic energy of its center of mass. What then is molecule's angular speed about the center of mass.
A wheel rotates about a horizontal axis. It has an outer radius R1 = 18.8 cm and mass M1 = 5.12 kg. What is the acceleration of the hanging weight after it is released
A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit by a bat. What is force on bat
Two forces act on a 100-kg block resting on the floor. The first force, pointing parallel to the floor, What is the magnitude of the net force on the block
Alpha particles (charge = +2e, mass = 6.68* 10^-27 kg) are accelerated in a cyclotron to a final orbit radius of 0.50 m. Determine the kinetic energy of an alpha particle in the final orbit
A 3.13{\rm k \Omega} resistor is connected to a generator with a maximum voltage of 131{\rm V} . Find average power, and maximum power
Soccer ball is kicked with a speed of 11.50 m/s at an angle of 30.0° above the horizontal. If the ball lands at the same level from which it was kicked, how long was it in the air.
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