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[DOC File]CHAPTER 9 Physics Momentum and Its Conservation
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Use example problems 9-1a and 9-1b to help you solve practice problems 9-1. Angular Momentum . As we have seen, the speed of an object moving in a circle changes only if a torque is applied to it. The quantity of angular motion that is similar to linear momentum is called angular momentum.
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[DOC File]AP Physics Multiple Choice Practice – Torque
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Jul 12, 2012 · AP Physics Multiple Choice Practice – Momentum and Impulse. 2. ... What is the angular momentum of the object with respect to an axis perpendicular to the circle and through its center? (A) 9 N m/kg (B) 12 m2/s (C) 13.5 kg m2/s2 (D) 18 N m/kg (E) 24 kg m2/s. 40. Two objects of mass 0.2 kg and 0.1 kg, respectively, move parallel to the x axis ...
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[DOC File]Chapter 5A - Wake Forest University
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When its angular velocity is 10 rad/s, its angular momentum (in kg · m2/s) is. a. 50. b. 20. c. 40. d. 25. e. 70. 15. A puck on a frictionless air hockey table has a mass of 5.0 g and is attached to a cord passing through a hole in the surface as in the figure. The puck is revolving at a distance 2.0 m from the hole with an angular velocity of ...
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[DOC File]Momentum Practice Problems - Tredyffrin/Easttown School ...
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Perform the following practice problems on a separate sheet of notebook paper. Make sure you include the formula, the numbers plugged into the formula, and your answer (in a box) with a label. Basic Momentum Problems (round all final answers to nearest tenth) 1. Calculate the momentum of a 12ookg car with a velocity of 25m/s.
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[DOC File]ANSWERS - AP Physics Multiple Choice Practice – Torque
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Jul 12, 2012 · Total momentum before must equal total momentum after. Before, there is an x momentum of (2)(1.5)=3 and a y momentum of (4)(1)=4 giving a total resultant momentum before using the Pythagorean theorem of 5. The total after must also be 5. Just as linear momentum must be conserved, angular momentum must similarly be conserved.
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[DOC File]Practice Problems for TEST II, PHY2020
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Practice Problems for Test 2. 3 sig figs on all answers – I have given the units for each answer line ... Free from external torques means angular momentum (L=I() is conserved. Thus the new ( = 1/2 * 70 rad/s = 35 rad/s, since (new * Inew has to equal the given (initial) ( of 70 rad/s times Iinitial. ...
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Angular momentum practice problems