PhysicsLAB NY Regents
January 2006, Part 3

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41 Which changes would cause the greatest increase in the rate of flow of charge through a conducting wire?



 
42 According to the Standard Model of Particle Physics, a meson is composed of



 
43 Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?
 
44 An object falls freely near Earth’s surface. Which graph best represents the relationship between the object’s kinetic energy and its time of fall?
 
45 In the diagram below, a block of mass M initially at rest on a frictionless horizontal surface is struck by a bullet of mass m moving with horizontal velocity v.
 
 
What is the velocity of the bullet-block system after the bullet embeds itself in the block?
 
46 Two 30.-newton forces act concurrently on an object. In which diagram would the forces produce a resultant with a magnitude of 30. newtons?



 
47 The diagram below represents the bright-line spectra of four elements, A, B, C, and D, and the spectrum of an unknown gaseous sample.
 
 
Based on comparisons of these spectra, which two elements are found in the unknown sample?
 



 
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