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A red blood cell travels at speed 0.400 m/s in a large artery. A sound of frequency 2.00 x106 Hz enters the blood opposite the direction of flow. The speed of sound in the blood is 1500 m/s.
Determine the frequency of sound reflected from the cell and detected by a receiver.
On a distant planet, golf is just as popular as it is on earth. Agolfer tees off and drives the ball 3.10 times as far as he wouldhave on earth, given the same initial velocities on both planets.The ball is launched at a speed of 41.8 m/s at an an..
On a drive from your home to town, you wish to average 56 mph. What average speed must you maintain in order to have an overall average speed of 56 mph
the earth puts a gravitational force on the moon. the moon puts a gravitational force on the earth. how do the
Which one of the four Maxwell's equation describes the creation of a magnetic field with an electric field and electric current? Describe why Maxwell's equations prohibit the existence of magnetic monopoles.
two small metallic spheres each of mass 0.20 g are suspended as pendulums by light strings from a common point as shown
A 300 N box is placed on a frictionless inclined plane that makes a 22.0° angle with the horizontal. What is the normal force of the ramp on the box
A sprinter explodes out of the starting block with an acceleration of +3.9 m/s2, What is her velocity at the end of the race
a 80 kg fullback attempts to score a touchdown by diving over the goal line. when he is at the goal line and moving
A 0.43 µF capacitor is connected to a 9.0 Volt battery. Find the magnitude of the charge on each plate of the capacitor
Exploding shoes. The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden conversion of water to water vapor causes adramatic expansion that can rip apart shoes. Water has density 1000kg..
Two people carry a heavy electric motor by placing it on a light board 2.05 m long. One person lifts at one end with a force of 405 N , Where along the board is its center of gravity located
A converging lens (f = 12.9 cm) is located 28.5 cm to the left of a diverging lens (f = -5.52 cm). Find the overall magnification
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