Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 55E
A friend tells you that aluminum lies beneath the layer of white plastic on a refrigerator door. How could you check to see whether this is true (without any scarping)?
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F=0.8975r^-2.00
And re-writing it as:
(4)F=0.8975/r^-2.00
We can now compare it with Coulomb’s equation:
(1)F=K|q1q2|/r^2
So, comparing these equations (4) and (1) we realize that:
k=|q1q2|=0.8975
Plugging in values for charges: q1 = -10µC, and q2 = 10µC, isolating k (Coulomb’s constant), and recalling that 1µC = 10-6 C, we get:
k|-10µC*10µC|=0.8975
k=0.8934/|-10µC*10µC|= 0.8934/10*10^-6C*10*10^-6C (3)
Use this Example calculation above, and the trendline equation (3) coefficients that you have obtained on your graph, to find k. Show your work below. Be careful with powers of ten.
k= 0.8975/|-10µC*10µC|= 0.8975/10*10^-6C*10*10^-6C = (5)
Now, important part in reporting the answer is properly showing its units. To derive the SI units for Coulomb’s constant k, let’s look again at the equation (1), and re-write it as:
k=F*r^2/|q1q2| (6)
Recalling the units for all parameters in this equation:
Force, F – Newtons, [N]
Distance, r –…
ou have a summer job as an assistant technician for a telephone company in California.During a recent earthquake, a 1.0-mile long underground telephone line is crushed atsome point. This telephone line is made up of two parallel copper wires of the samediameter and same length, which are normally not connected. At the place where theline is crushed, the two wires make contact. Your boss wants you to find this placeso that the wire can be dug up and fixed. You disconnect the line from the telephonesystem by disconnecting both wires of the line at both ends. You then go to one end ofthe line and connect one terminal of a 6.0-V battery to one wire, and the other terminalof the battery to one terminal of an ammeter. When the other terminal of the ammeteris connected to the other wire, the ammeter shows that the current through the wire is1.0 A. You then disconnect everything and travel to the other end of the telephone line,where you repeat the process and find a current of 1/3 A.
Chapter 9 Solutions
Conceptual Physical Science (6th Edition)
Ch. 9 - How does the range of refrigerator magnets differ...Ch. 9 - Prob. 2RCQCh. 9 - Prob. 3RCQCh. 9 - Prob. 4RCQCh. 9 - What two kinds of motion are exhibited by...Ch. 9 - What is a magnetic domain?Ch. 9 - Why is iron magnetic and wood not magnetic?.Ch. 9 - Prob. 8RCQCh. 9 - What happens to the direction of the magnetic...Ch. 9 - Why is the magnetic field strength inside a...
Ch. 9 - How is the strength of the magnetic field in a...Ch. 9 - In what direction relative to a magnetic field...Ch. 9 - What effect does Earths magnetic field have on the...Ch. 9 - What relative direction between a magnetic field...Ch. 9 - Prob. 15RCQCh. 9 - What is a galvanometer called when it is...Ch. 9 - Is it correct to say that an electric motor is a...Ch. 9 - What important discovery did physicists Michael...Ch. 9 - State Faradays law.Ch. 9 - What are the three ways in which voltage can be...Ch. 9 - How does the frequency of induced voltage compare...Ch. 9 - What are the basic differences and similarities...Ch. 9 - Is the current that is produced by a common...Ch. 9 - What commonly supplies the energy input to a...Ch. 9 - Is it correct to say that a generator produces...Ch. 9 - Is it correct to say that a transformer boosts...Ch. 9 - Which of these does a transformer change: voltage,...Ch. 9 - What is induced by the rapid alternation of a...Ch. 9 - What is induced by the rapid alternation of an...Ch. 9 - What important connection did Maxwell discover...Ch. 9 - PLUG AND CHUG (FORMULA FAMILIARIZATION)...Ch. 9 - PLUG AND CHUG (FORMULA FAMILIARIZATION)...Ch. 9 - A video game console requires 6 V to operate...Ch. 9 - A model electric train requires 6 V to operate....Ch. 9 - A transformer for a laptop computer converts a...Ch. 9 - Show that if the output current for the...Ch. 9 - A transformer has an input of 6 V and an output of...Ch. 9 - An ideal transformer has 50 turns in its primary...Ch. 9 - Neon signs require about 12,000 Y for their...Ch. 9 - A power of 100 kW (105W) is delivered to the other...Ch. 9 - Bar magnets are moved into the wire coils in...Ch. 9 - Each of the transformers shown below powered with...Ch. 9 - Many dry cereals are fortified with iron, which is...Ch. 9 - If you place a chunk of iron near the north pole...Ch. 9 - How do the magnetic poles of refrigerator magnets...Ch. 9 - Prob. 50ECh. 9 - What kind of force field surrounds a stationary...Ch. 9 - Prob. 52ECh. 9 - All atoms have moving electric charges. 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