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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.
a metal sphere of radius 80. mm is charged to a potential of -0.50 kv. with what velocity must an electron be fired
A 100 g ball on a 60 cm long string is swung in a vertical circle whose center is 200 cm above the floor. The string suddenly breaks while it is parallel to the ground and the ball is moving upward. The ball reaches a height 600 cm above the floor..
A rope is wrapped around a wheel of radius R = 2.0meters. The wheel is mounted with frictionless bearings on an axle during its center. A block of mass 14 kg is suspended from the end of the rope.
Two long slits, each 0.10-mm wide, are separated by 0.20 mm. The slits are illuminated by light with a wavelength of 500 nm. If the interference pattern is observed on a screen 2.5 m behind the slits, how many double-slit interference maxima will..
A force of 67.2N is required to start a 7.0 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
Consider the following situation: A positively charged rod is brought near a neutral conductor that rests on an insulatingsurface. The rod does not touch the conductor but only remainsnearby.
At a distance d (d > L) under the point of suspension there is an infinite plane conductor. Find the frequency of the pendulum, for small amplitudes. You can neglect gravity. What criterion determines that that is valid
Calculate the molar enthalpy change, equivalent to the heat of dissolution over n, where n is the number of moles of urea.
Two 22 centimeter focal length converging lenses are located 16.5 centimeter apart. Find where will the final image formed by the second lens be located? Evaluate the image distance from the second lens
how does temperature affect the extent of dissociation of
Sketch the energy graph for the potential energy and the total energy of the spring-object system as a function of compression distance x from x = -xmax to x =0.
a tropical fish aquarium has thick transparent windows made of a material whose refractive index is 1.742. what
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