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A steel wire has a linear density of 50.0 g/m. It is under a tension of 800 N. One end is tied to an oscillating source which sends waves down the string. The oscillator vibrates with a frequency of 400 Hz and an amplitude of 2.00 mm. Let us de ne x = 0 to be at the end of the string attached to the oscillator. At t = 0 the oscillator is at the lowest point in its vibration. (a) What is the wavelength of the waves produced on the wire? (b) Write the displacement, D(x; t), for this string.
Consider the following two economic characteristics with two possible outcomes each: employment (increase, decrease) and economic trend (positive, negative).
Two small metallic spheres, each of mass m = 0.198 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.4 nC, and they come to equilibrium when each string is ..
Explain why do you suppose that Best Buy, rather than one of Best Buy's big suppliers such as Sony or Panasonic, is considering eliminating rebates?
What is the temperature T of the Concorde's skin in flight?
What are the major causes of absenteeism at work? How can companies minimize the level of absenteeism that takes place?
Illustrate what is the definition of Concept development, Idea generation, Idea screening, Product design, Concept name development and Sports cape in sport marketing?
Suppose that the displacement of an object is related to time according to the expression x = Bt2. What are the dimensions of B?
Suppose that the probability is 1 in 3,900,000 that a single auto trip in the U.S. would result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips.
you are in charge of developing an experiment to test the hypothesis that increasing the number of salespeople assigned to a territory will increase sales of health care services in the territory.
A charged particle A exerts a force of 2.75 ?N to the right on charged particle B when the particles are 12.0 mm apart. Particle B moves straight away from A to make the distance between them 17.6 mm. What vector force does particle B then exert o..
Two .40 kg soccer balls collide elastically in a head on collision. The first l starts at rest and the second ball has a speed of 3.50 m/s after the collision, second ball is at rest. What is the final speed of the first ball.
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.
What is the period of oscillation of the scale? State your reply numerically in seconds.
What is the electric force
The bullet becomes embedded in the block. if the coefficient of kinetic friction between the block and surface is .65 what was the speed of the bullet at once before impact.
A 5m-diameter garden pond holds 5.90 times 10^ {3};{rm kg} of water.
A 105 granite cube slides down a 40 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 265 steel cube at rest. How high above the table must the granite cube be released to give the steel cube a speed of..
At the factory, a noon whistle is sounding with the frequency of 464 Hz. As a car travelling at 76 km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the chang..
Write down the expression for net torque
plan a free-body diagram of the wire and bird system. How much tension does the bird produce in the wire? Ignore the weight of the wire.what is the rotational inertia of the wheel.
Suppose the traffic light is hung so that the tensions T1 and T2 are both equal to 84.7 N. Find the new angles they make regarding the x axis. (By symmetry, these angles would be the same.)
To pump 100Joules of heat from the ice cube tray of freezing water at 273K, out into a hot room at 310 K, the laws of thermodynamics say that you will need at least how many Joules of ordered energy or work.
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