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At rest, a car's horn sounds at a frequency of 410 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 377 Hz. What is the speed of the car? (Take the speed of sound in air to be 345 m/s.) Is the cyclist ahead of or behind the car?
A jet plane lands with a speed of 114 m/s and can accelerate at a maximum rate of ?4.20 m/s2 as it comes to rest. what is the minimum time needed before it can come to rest
Two point charges 1.6cm apart have an electric potential energy -160?J . The total charge is 25nC. What are the two charges
Suppose a small boat is at the crest of this wave, 1.5 {rm m} above the equilibrium position. Illustrate what will the vertical position of the boat be 5 seconds later?
llustrate what actions would you recommend to Carlos Fernandez to help Grupo Modelo sustain or improve its competitive position, especially its international operations and its long-term financial performance?
A uniformly charged thin ring has radius 14.5cm and total charge 20.0nC, Find the speed of the electron when it reaches the center of the ring
find the work done to move the particle from x = 0 to x = 10.0 m by graphically determining the area under the F versus x graph. (Do this on paper. Your instructor may ask you to turn in this graph.)
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m^3, length 91.5cm, obtain the weight of the rod
Water is lifted out of a well 22.0m deep by a motor rated at 1.40hp .Assuming efficiency 90% , how many kilograms of water can be lifted in 1 min
A charged particle of mass 1.56 g is moving at a speed of 1.39 104 m/s. the particle moves by a distance of 0.150 m in a direction perpendicular to the velocity. Find the charge on the particle
What is the induced EMF when the south pole end of magnet moves closer to the plane of the coil? When the magnet is stationary what happens to the induced voltage
An electron passes through a point 3.75 cm from a long straight wire as it moves at 36.1% of the speed of light perpendicularly toward the wire. Find the magnitude of the electron\'s acceleration at that point
The train on the right accelerates leftward at 0.82 m/s2.How far does train on the left travel before the front ends of the trains pass.
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