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A 1.40 gram rubber-band starts as 90 mm long; 5.1 N stretches it to 150 mm long, but most kids use 18N to pull them to 300 mm long. The rubber-band used this way can launch a 43 gram chalk-board eraser so it travels 3.15 m (x) while it falls 0.92 m  (y). Calculate the rubber-band's elastic PE before launching the eraser.

A 1.40 gram rubber-band starts as 90 mm long; 5.1 N stretches it to 150 mm long, but most kids use 18N to pull them to 300 mm long. The rubber-band used this way can launch a 43 gram chalk-board eraser so it travels 3.15 m (x) while it falls 0.92 m  (y). Calculate the rubber-band's elastic PE before launching the eraser.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A 1.40 gram rubber-band starts as 90 mm long; 5.1 N stretches it to 150 mm long, but most kids use 18N to pull them to 300 mm long.
The rubber-band used this way can launch a 43 gram chalk-board eraser so it travels 3.15 m (x) while it falls 0.92 m  (y). Calculate the rubber-band's elastic PE before launching the eraser. 

The image displays a list of selectable options, each with a radio button next to different energy values measured in Joules. The values listed are: - 25.7 Joule - 2.70 Joule - 85.7 Joule - 5.40 Joule - 0.388 Joule - 1.89 Joule - 9.016 Joule - 3.78 Joule There are no graphs or diagrams present in the image.
Transcribed Image Text:The image displays a list of selectable options, each with a radio button next to different energy values measured in Joules. The values listed are: - 25.7 Joule - 2.70 Joule - 85.7 Joule - 5.40 Joule - 0.388 Joule - 1.89 Joule - 9.016 Joule - 3.78 Joule There are no graphs or diagrams present in the image.
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