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You are standing on the road as a garbage truck recedes from you ata speed of 30 m/s. The trucks backup signal sound has a fixed frequency of 300 Hz. At the same time a another garbage truck is approaching you. The second truck is going at the same speed and has the same signal sound.
A) What frequencies do you hear from each garbage truck?B) What is the frequency difference, if any, between the two observed frequencies?
In diving to a depth of 750 m, a seal also moves 460 m due east of his starting point. What is the magnitude of the seal's displacement
A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. What is the distance to the center of the object
A stone of mass 0.31 kg is tied to a string of length 0.85 m and is swung in the horizontal circle with speed v. The string has a breaking-point force of 90 N. What is the largest value v can have without string breaking.
A 0.873-kg block is held up against a ceiling by a pole that makes an angle of 21 degree with respect to the vertical; What minimum force in the pole is necessary to get the block moving
A metal wire of mass m can slide without friction on two parallel, horizontal, conducting rails. find its velocity as a function of time
Two protons are maintained at a separation of 803 nm. Calculate the electric potential due to the two particles at the midpoint between them
A hollow sphere has a mass of M = 8.00 kg and a radius of R = 60.0 cm. Determine the sphere's rotational inertia about an axis that is tangent to the OUTER surface of the sphere
Tension is maintained in a string as in the figure below. The observed wave speed is 27 m/s when the suspended mass is 3.0 kg. What is the mass per unit length of the string
What makes up the Total Energy of a System? Mathematically what similarities do Gravitational Potential Energy and Elastic Potential Energy have with each other?
A bus contains a 1440 kg flywheel ( a disk that has a 0.670 m radius ) and has a total mass of 9400 kg. Calculate the angular velocity of the flywheel
you ar charged to work on reducing expenditures for a company.you think that the company can save considerable money on fuel costs by lowering the room temperature of the building for daily use, How much heat will be saved each morning
An asteroid is discovered heading straight toward Earth at 14 km/s . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10minutes , after which the asteroid is moving at 28degrees to its original pa..
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