A tennis ball has a mass of 0.057 kg. A professional tennis player hits the ball hard enough to give it a spee?
A tennis ball has a mass of 0.057 kg. A professional tennis player hits the ball hard enough to give it a speed of 44 m/s (about 99 miles per hour.) The ball moves toward the left, hits a wall and bounces straight back to the right with almost the same speed (44 m/s). As indicated in the diagram below, high-speed photography shows that the ball is crushed about 2 cm at the instant when its speed is momentarily zero, before rebounding.
1. How much time elapses between first contact with the wall, and coming to a stop?
2. What is the magnitude of the average force exerted by the wall on the ball during contact?
3. In contrast, what is the magnitude of the gravitational force of the Earth on the ball?
no diagram, no answer, hillbilly.
it’s bad enough that you expect others to do your homework for you, but if you gotta, do it right, will ya?
Photoshop: High Contrast Photo Effect
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Photographic Print of View from Fort San Felipe towards Boca Grande, Cartagena, Colombia, South from Robert Harding £7.99 10×8 Print, View from Fort San Felipe towards Boca Grande, Cartagena, Colombia, South. View from Fort San Felipe towards Boca Grande, Cartagena, Colombia, South America. Chosen by Robert Harding. Printed on 254x203mm Fuji Crystal Archive paper for stable image permanence and brilliant colour reproduction with smooth tones, enhanced sharpness, and excellent definition…. |
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Photo Jigsaw Puzzle of Modern buildings, Lisbon, Portugal, Europe from Robert Harding Photo Jigsaw, Modern buildings, Lisbon, Portugal, Europe. Modern buildings, Lisbon, Portugal, Europe. Chosen by Robert Harding. Bespoke 300 Piece Jigsaw Puzzle 17×12 (43x30cm). The jigsaw is delivered bagged and on a back board making a superb gift. Also supplied are a re-sealable bag, a photo example of the image and a self assemble flat packed box for storage. This item is shipped from our UK la… |
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The Darkroom Handbook £4.41 A complete illustrated manual of skills, procedures and equipment which is aimed at the beginner, the experienced amateur and professional alike. It covers the basic function of each piece of equipment, processing and specific instructions on how to achieve successful results…. |
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Canon Eos 1000d/ Rebel Xs (Paperback) $15.4 Covers Canon`s entry-level digital SLR, the EOS 1000D/Rebel XS, which offers 10 mega pixels, 2.5in LCD monitor, Live View, 7-point AF system with both phase – and contrast-detection, and high ISO noise reduction features. This guide helps photographers… |
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Complete Guide to Digital Infrared Photography $16.22 Cameras can capture what the eye can’t perceive: the presence of infrared light. And shooting infrared (IR) with a digital camera makes it easier than ever to create distinctively dreamlike, high-contrast black-and-white pictures. Using… |
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Canon Eos Rebel T1i/500d for Dummies (Paperback) $19.59 Veteran author Julie Adair King demystifies the high-end features of the new Canon T1i. The Canon EOS Rebel T1i is the newest camera offered in Canon`s popular Rebel line of digital SLRs-and sells for less than $900. Packed with page after p… |
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David Busch`s Sony Alpha Nex-7 Guide to Digital Photography (Paperback) $19.59 DAVID BUSCH`S SONY ALPHA NEX-7 GUIDE TO DIGITAL PHOTOGRAPHY is a sure guide to getting the best results with your NEX-7. This exciting camera, the high-end model in the Sony compact mirrorless camera line, includes an ultra-high-resolution 24MP sensor,… |
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Davis Cup (Hardcover) $22.24 With candid text and never-before-published photos taken by the sport’s top photographers, this dynamic yearbook captures the dramatic story lines, high quality of play, and enthusiasm of the crowd that characterize the Davis Cup.Launched… |
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Fundamentals of Small Animal Surgery (Paperback) $61.75 “Fundamentals of Small Animal Surgery offers a thorough introduction to the surgical principles essential to good veterinary practice. With many high-quality line drawings and clinical photographs to complement the detailed descriptions, the book is a… |
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Flesh And Bones of Immunology $36.63 Designed for medical students, this study guide follows the format of the web site of the same name, with overviews followed by the “high return” facts and then 50 topics. Well-illustrated with line drawings and clinical photographs, the topics include… |
