A bar of gold measures 0.15 m 3 0.050 m 3 0.050 m. How

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

ISBN: 9781118486894 195

Solution for problem 7 Chapter 11

Studyguide for Physics

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Problem 7

A bar of gold measures 0.15 m 3 0.050 m 3 0.050 m. How many gallons of water have the same mass as this bar?

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Step 1 of 3

Ch.7:Kine▯cEnergyandWork A. ChapterGoals • Studyofwhatareenergyandkine▯cenergy • Studyofwhataretheworkandpower • Studyofwhataretheworkdonebygravityandspring force Ch.7:Kine▯cEnergyandWork B.Kine▯cEnergy • Energy:Abilitytochangebyforceordowork. • UnitofenergyisJoule(J),1J=1Nm • Kine▯cEnergy:Energyofmo▯on 1 2 v K = mv m 2 • Example:ﬁndthekine▯cenergyofa0.01-kgbulletthatis movingataspeedof500m/s 1 1 K= mv = ×0.01 ×500 =1250J 2 2 Ch.7:Kine▯cEnergyandWork C.Work • Work:Energytransferredto(posi▯vework)orfrom (nega▯vework)anobjectbyaforcea

Step 2 of 3