Physics 6B Ch11worksheet

Physics 6B Ch11worksheet - www.clas.ucsb.edu/staff/vince 5...

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PHYSICS 6B Ch.11 Worksheet www.clas.ucsb.edu/staff/vince/ 1) In a design for a piece of medical apparatus, you need a material that is easily compressed when a pressure is applied to it. Should the bulk modulus of the material be large or small? 2) Two rods of equal length (0.5m) and diameter (2.0 cm) are placed end to end. One rod is aluminum, and the other is made of brass. A compressive force of 10,000 N is applied. a) Which rod undergoes a greater change in length? b) Calculate the total change in the length of the two rods. 3) The processing “speed” of a computer refers to the number of binary operations it can perform in one second, so it is really a frequency. If the processor of a personal computer operates at 2.50GHz, how much time is required for one processing cycle? 4) When a 0.22kg air track cart is attached to a spring, it oscillates with a period of 0.84s. What is the force constant for this spring?

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PHYSICS 6B Ch.11 Worksheet
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Unformatted text preview: www.clas.ucsb.edu/staff/vince/ 5) An Air track cart attached to a spring completes one oscillation every 2.4s. At t=0 the cart is released from rest at a distance of 0.10m from its equilibrium position. Draw a graph of position vs. time and determine the position of the cart at (a) 0.60 s b) 3.0s? Also indicate on your graph where the kinetic and potential energies are at their minimum and maximum values. 6) When a 0.420 kg mass is attached to a spring, it oscillates with a period of 0.350s. If instead a different mass, m 2 , is attached to the same spring, it oscillates with a period of 0.700s. Find (a) the force constant of the spring and (b) the mass of m 2 . 7) When the length of a simple pendulum is tripled, what happens to the period of its oscillation? a) The period decreases to 1/3 of the original period. b) The period does not change. c) The period increases by a factor of √3. d) The period increases by a factor of 3....
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Physics 6B Ch11worksheet - www.clas.ucsb.edu/staff/vince 5...

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