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A mosquito flaps its wings 650 vibrations per second, which produces the annoying 650 Hz buzz. The speed of sound is 340 m/s. How far does the sound travel among wing beats? In other words, find the wavelength of the mosquito's sound.
a shopper pushes a grocery cart by exerting a force on the handle. if the force equal 76 N at an angle of 40.0 degrees below the horizontal, how much force is pushing the cart in the forward direction
A 1 012-kg satellite orbits the Earth at a constant altitude of 93-km. What is the change in the system's potential energy
An electron field of 8.50e5 V/m is desired between two parallel plates each of area 45cm^2 and seperated by 2.45 mm of air
the wings of tiger beetles the figure below are colored by interference due to thin cuticle-like layers. in addition
W hat are underwater angles of refraction
A basketball player jumps straigh up to launch a long jump shot at an angle of 45 degrees with the horizontal and a speed of 15 m/s. How far from his original position does he land
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5. How far has the football traveled horizontally from its original position
A diver springs upward from a board that is threemeters above water. At an instant he contacts the water his speedis 9.20 m/s and his body makes an angle of 78.0o with respect to the horizontal surface of the water.
A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, find The average force required to stop the bullet
A merry go round has a moment of inertia of 1000 kgm^2. When it is rotating at 2.62 rad/sec, the motor shut off. How large was the friction torque
a 2800 kg elevator carries a maximum load of 835.1 kg. a constant frictional force of 4500 newtons retards the elevator's motion upward. what minimum power must the motor deliver to lift the fully loaded elevator at a constant speed of 2.08m/s
a point charge 3.5 uc is released from a point a where the potential is 450 v and arrives at a distance point b. the
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