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A 2.3-kg cart is rolling across a frictionless, horizontal

Studyguide for Physics | ISBN: 9781118486894  | Authors: John D. Cutnell ISBN: 9781118486894 195

Solution for problem 17 Chapter 7

Studyguide for Physics

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Studyguide for Physics | ISBN: 9781118486894  | Authors: John D. Cutnell

Studyguide for Physics

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Problem 17

A 2.3-kg cart is rolling across a frictionless, horizontal track toward a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain instant before the carts collide, the fi rst carts velocity is 14.5 m/s, and the second carts velocity is 21.9 m/s. (a) What is the total momentum of the system of the two carts at this instant? (b) What was the velocity of the fi rst cart when the second cart was still at rest?

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Tuesday, August 30, 2016 7 Ideas that shook the universe Ideas: -Idea 1: We are not located at the center of the universe. -Idea 2: We can predict the future -Idea 3: ENERGY- Makes the universe go -Idea 4: HEAT- Gives direction to the universe -Idea 5: There is a maximum speed limit (186,282 m/s) which is light speed -Idea 6: Everything has a double nature:- A. Particle nature B. Wave nature -Idea 7: Conservation laws ————————————————————— Chapter 2: Scientific method and Space. 5 Steps of the Scientific method:- 1. Define problem 2. See if the problem has been solved before (research) 3. Make guesses (hypothesis) 4. Test each guess (experiment) 5. State answer and give percent of certainty Qu

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Textbook: Studyguide for Physics
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Author: John D. Cutnell
ISBN: 9781118486894

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A 2.3-kg cart is rolling across a frictionless, horizontal