6th Edition

ISBN: 9780134091983

Author: Hewitt

Publisher: PEARSON CO

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Textbook Question

Chapter 15, Problem 54E

An artist wants to create a metal sculpture using a mold so that his artwork can be readily mass-produced. He wants his sculpture to be exactly 6 inches tall. Should the mold also be 6 inches tall? Why or why not?

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Chapter 15, Problem 53E

Chapter 15, Problem 55E

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Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? Please answer parts a-B. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places. DONT FORGET TO DRAW VECTORS! ONLY USE BASIC FORMULAS TAUGHT IN PHYSICS. distance = speed * time.

Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? c) If the driver’s average rate of acceleration is -9.5 m/s2 as he slows down, how long does it take him to come to a stop (use information about his speed of 28.9 m/s but do NOT use his reaction and movement time in this computation)? Please answer parts a-c. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.…

How is it that part a is connected to part b? I can't seem to solve either part and don't see the connection between the two.

Chapter 15 Solutions

EP CONCEPTUAL PHYSICAL SCI.-MOD.MASTER.

Ch. 15 - How many electrons can occupy the first shell? How...Ch. 15 - Which electrons are represented by an electron-dot...Ch. 15 - Prob. 3RCQ Ch. 15 - How does an ion differ from an atom?Ch. 15 - To become a negative ion, does an atom lose or...Ch. 15 - Why does the fluorine atom tend to gain only one...Ch. 15 - Prob. 7RCQ Ch. 15 - Suppose an oxygen atom gains two electrons to...Ch. 15 - Prob. 9RCQ Ch. 15 - Do metals more readily gain or lose electrons?

Ch. 15 - What is an alloy?Ch. 15 - What is a native metal?Ch. 15 - Prob. 13RCQ Ch. 15 - Prob. 14RCQ Ch. 15 - Within a neutral molecule, how many covalent bonds...Ch. 15 - Prob. 16RCQ Ch. 15 - Prob. 17RCQ Ch. 15 - Prob. 18RCQ Ch. 15 - Prob. 19RCQ Ch. 15 - How can a molecule be nonpolar when it consists of...Ch. 15 - Why do nonpolar substances boil at relatively low...Ch. 15 - Which is more symmetrical: a polar molecule or a...Ch. 15 - Why dont oil and water mix?Ch. 15 - Prob. 24RCQ Ch. 15 - Which is stronger: the ion-dipole attraction or...Ch. 15 - What is a hydrogen bond?Ch. 15 - Are induced dipoles permanent?Ch. 15 - Prob. 31TAS Ch. 15 - What is the electric charge on the calcium ion in...Ch. 15 - Prob. 33TAS Ch. 15 - Prob. 34TAS Ch. 15 - Rank these bonds in order of increasing polarity:...Ch. 15 - Prob. 36TAR Ch. 15 - Prob. 37TAR Ch. 15 - Prob. 38TAR Ch. 15 - Prob. 39E Ch. 15 - Prob. 40E Ch. 15 - How many more electrons can fit within the valence...Ch. 15 - Prob. 42E Ch. 15 - What happens when hydrogens electron gets close to...Ch. 15 - Prob. 44E Ch. 15 - Why does an atom with few valence electrons tend...Ch. 15 - Why is it so easy for a magnesium atom to lose two...Ch. 15 - Why doesnt the neon atom tend to lose or gain any...Ch. 15 - Why does an atom with many valence electrons tend...Ch. 15 - Sulfuric acid, H2SO4, loses two protons to form...Ch. 15 - Prob. 50E Ch. 15 - Which should be more difficult to pull apart: a...Ch. 15 - Prob. 52E Ch. 15 - Given that the total number of atoms on our planet...Ch. 15 - An artist wants to create a metal sculpture using...Ch. 15 - Two fluorine atoms join together to form a...Ch. 15 - How are metallic bonds similar to ionic bonds? How...Ch. 15 - What drives an atom to form a covalent bond: its...Ch. 15 - Atoms of nonmetallic elements form covalent bonds,...Ch. 15 - Prob. 59E Ch. 15 - Prob. 60E Ch. 15 - Write the electron-dot structure for the covalent...Ch. 15 - Prob. 62E Ch. 15 - In each molecule, which atom carries the greater...Ch. 15 - Which is more polar: a sulfur-bromine (S-Br) bond...Ch. 15 - True or False: The greater the nuclear charge of...Ch. 15 - True or False: The more shells in an atom, the...Ch. 15 - Water, H2O, and methane, CH4, have about the same...Ch. 15 - In the figure on the next page, the molecule from...Ch. 15 - Prob. 69E Ch. 15 - Three kids sitting equally apart around a table...Ch. 15 - Which is stronger: the covalent bond that holds...Ch. 15 - The charges with sodium chloride are all...Ch. 15 - Prob. 73E Ch. 15 - Prob. 74E Ch. 15 - Prob. 75E Ch. 15 - A thin stream of water is pulled to a rubber...Ch. 15 - Prob. 77E Ch. 15 - Prob. 1RAT Ch. 15 - Prob. 2RAT Ch. 15 - Which would you expect to have a higher melting...Ch. 15 - Why are ores so valuable? (a) They are sources of...Ch. 15 - In terms of the periodic table, is there an abrupt...Ch. 15 - A hydrogen atom does not form more than one...Ch. 15 - When nitrogen and fluorine combine to form a...Ch. 15 - Prob. 8RAT Ch. 15 - Prob. 9RAT Ch. 15 - Iodine, I2, has a higher melting point than...

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