Explanation Given: Mass of woman= 50 kg Mass of elephant=5000kg Formula used: Pressure is given by P = F a Where, F is force applied, a is area. Calculations: Less area means more pressure.Although the weight of 5000kg elephant is more but the area of the spike heels is much smaller than the area of the feet of elephant. So, the pressure exerted by 50 kglady on spike heels is much greater than the pressure exerted by the 5000-kg elephant. Let’s assume area of heels= 1 cm 2 Let’s say lady puts pressure equally on two feet. Also,let’s assume that half pressure is on heels and half of it is on her sole. P = m g a P = ( 50 × 9.8 ) 4 1 cm 2 P = 122

Conceptual Physics / MasteringPhysics (Book & Access Card)

12th Edition

ISBN: 9780321908605

Author: Paul G. Hewitt

Publisher: PEARSON

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Chapter 13, Problem 52RCQ

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If a 5000 kg elephant or a 50 kg lady standing on spike heels would exert more pressure on the ground.

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Chapter 13, Problem 51RCQ

Chapter 13, Problem 53RCQ

Chapter 13 Solutions

Conceptual Physics / MasteringPhysics (Book & Access Card)

Ch. 13 - Prob. 1RCQ Ch. 13 - Prob. 2RCQ Ch. 13 - What is the relationship between liquid pressure...Ch. 13 - Prob. 4RCQ Ch. 13 - Prob. 5RCQ Ch. 13 - Prob. 6RCQ Ch. 13 - Prob. 7RCQ Ch. 13 - Why isn’t there a horizontal buoyant force on a...Ch. 13 - Prob. 9RCQ Ch. 13 - Prob. 10RCQ

Ch. 13 - Prob. 11RCQ Ch. 13 - Prob. 12RCQ Ch. 13 - If a 1-L container is immersed halfway into water,...Ch. 13 - Prob. 14RCQ Ch. 13 - Prob. 15RCQ Ch. 13 - Prob. 16RCQ Ch. 13 - Prob. 17RCQ Ch. 13 - How is the density of a fish controlled? How is...Ch. 13 - It was emphasized earlier that the buoyant force...Ch. 13 - Why do the gondolas of the Falkirk Wheel (see...Ch. 13 - Prob. 21RCQ Ch. 13 - Prob. 22RCQ Ch. 13 - Prob. 23RCQ Ch. 13 - Prob. 24RCQ Ch. 13 - Prob. 25RCQ Ch. 13 - How does the height to which water is lifted in a...Ch. 13 - Place an egg in a pan of tap water. Then dissolve...Ch. 13 - If you punch a couple of holes in the bottom of a...Ch. 13 - Float a water-soaked Ping-Pong ball in a can of...Ch. 13 - Soap greatly weakens the cohesive forces between...Ch. 13 - Sprinkle some black pepper on the surface of some...Ch. 13 - Pressure = force/area 31. Calculate the pressure a...Ch. 13 - Pressure= weight density X depth (Use 10,000 N/m3...Ch. 13 - Show that the water pressure at the bottom of the...Ch. 13 - Prob. 35RCQ Ch. 13 - The top floor of a building is 20 m above the...Ch. 13 - Calculate the average force per nail when Sara,...Ch. 13 - Suppose that you balance a 5-kg ball on the tip of...Ch. 13 - A 12-kg piece of metal displaces 2 L of water when...Ch. 13 - A 1-m-tall barrel is closed on top except for a...Ch. 13 - A dike in Holland springs a leak through a hole of...Ch. 13 - In lab you find that a 1-kg rock suspended above...Ch. 13 - A merchant in Katmandu sells you a solid gold 1-kg...Ch. 13 - In the hydraulic pistons shown in the sketch, the...Ch. 13 - Your friend of mass 100 kg can just barely float...Ch. 13 - Rank the pressures from greatest to least for the...Ch. 13 - Rank the following from greatest to least for the...Ch. 13 - Think about what happens to the volume of an...Ch. 13 - Prob. 49RCQ Ch. 13 - Prob. 50RCQ Ch. 13 - Prob. 51RCQ Ch. 13 - Prob. 52RCQ Ch. 13 - Prob. 53RCQ Ch. 13 - Prob. 54RCQ Ch. 13 - Prob. 55RCQ Ch. 13 - Prob. 56RCQ Ch. 13 - Prob. 57RCQ Ch. 13 - Prob. 58RCQ Ch. 13 - Prob. 59RCQ Ch. 13 - Prob. 60RCQ Ch. 13 - Prob. 61RCQ Ch. 13 - Prob. 62RCQ Ch. 13 - Prob. 63RCQ Ch. 13 - If you’ve wondered about the flushing of toilets...Ch. 13 - Prob. 65RCQ Ch. 13 - Prob. 66RCQ Ch. 13 - Prob. 67RCQ Ch. 13 - Why is it easier to float in saltwater than in...Ch. 13 - Prob. 69RCQ Ch. 13 - Prob. 70RCQ Ch. 13 - Prob. 71RCQ Ch. 13 - Prob. 72RCQ Ch. 13 - Prob. 73RCQ Ch. 13 - Prob. 74RCQ Ch. 13 - Prob. 75RCQ Ch. 13 - Why does an inflated beach ball pushed beneath the...Ch. 13 - Prob. 77RCQ Ch. 13 - Prob. 78RCQ Ch. 13 - Prob. 79RCQ Ch. 13 - Will a swimmer gain or lose buoyant force as she...Ch. 13 - Prob. 81RCQ Ch. 13 - The weight of the human brain is about 15 N. The...Ch. 13 - Prob. 83RCQ Ch. 13 - Prob. 84RCQ Ch. 13 - Prob. 85RCQ Ch. 13 - Prob. 86RCQ Ch. 13 - Prob. 87RCQ Ch. 13 - Prob. 88RCQ Ch. 13 - Prob. 89RCQ Ch. 13 - Prob. 90RCQ Ch. 13 - Prob. 91RCQ Ch. 13 - If you release a Ping-Pong ball beneath the...Ch. 13 - So you’re having a run of bad luck, and you slip...Ch. 13 - Prob. 94RCQ Ch. 13 - Prob. 95RCQ Ch. 13 - Prob. 96RCQ Ch. 13 - Prob. 97RCQ Ch. 13 - Prob. 98RCQ Ch. 13 - The photo shows physics instructor Marshall...Ch. 13 - Prob. 100RCQ Ch. 13 - Prob. 101RCQ Ch. 13 - There is a story about Pascal’s assistant climbing...Ch. 13 - Prob. 103RCQ Ch. 13 - A piece of iron placed on a block of wood makes...Ch. 13 - Prob. 105RCQ Ch. 13 - Prob. 106RCQ Ch. 13 - Prob. 107RCQ Ch. 13 - Would the water level in a canal lock go up or...Ch. 13 - Prob. 109RCQ Ch. 13 - Prob. 110RCQ Ch. 13 - Prob. 111RCQ Ch. 13 - Prob. 112RCQ Ch. 13 - Prob. 113RCQ Ch. 13 - Prob. 114RCQ

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