CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
3rd Edition
ISBN: 2818440059223
Author: Hewitt
Publisher: PEARSON+
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Chapter 18, Problem 90TE
Why are tiny hummingbirds such good fliers? Is it easier for a small bird to stay in the air than for a large bird to do so? (Hint:
The amount of lift a bird generates depends on the surface
area of its wings, and a bird’s weight depends on its volume.)
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Maxwell's Mesh Analysis
1. The steel of the third rail of a railway system has a resistivity of 21.4 μ-cm. If its cross-sectional area
is 8.2 in², calculate the resistance per mile of rail, neglecting the effect of joints between sections. (1
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3. For the circuit shown, find the following:
50 V
602
10 V
702
a. the value of resistor R. (1 point)
b. the equivalent resistance with respect to the 50-V
source. (1 point)
4. For the circuit shown, determine all the currents in each branch using Kirchhoff's Laws. (3 points)
A
5V 2
В
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C
4
6 VT
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F
E
5. Use Maxwell's Mesh to find I, and VAB…
For items 8-9, refer to the problem below.
Find all the currents flowing in every resistor, power dissipation in
every resistor and the total power of the circuit shown at the right
using...
8. Kirchhoff's Laws (5 pts)
9. Maxwell's Mesh Analysis (5 pts)
A
8 V
10 V
B
+
20 Ω
3Ω
202
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C
wwww
202
+
50
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12 V
Chapter 18 Solutions
CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
Ch. 18 - What criteria are used to classify species in the...Ch. 18 - How did scientific ideas about evolution change...Ch. 18 - What information do scientists use to construct...Ch. 18 - What are the three domains of life?Ch. 18 - To which domain of life do eukaryotes belong?Ch. 18 - Prob. 6RCCCh. 18 - Prob. 7RCCCh. 18 - Prob. 8RCCCh. 18 - Which features of archaeans suggest they are more...Ch. 18 - Prob. 10RCC
Ch. 18 - Prob. 11RCCCh. 18 - Prob. 12RCCCh. 18 - Prob. 13RCCCh. 18 - Prob. 14RCCCh. 18 - Prob. 15RCCCh. 18 - Prob. 16RCCCh. 18 - Prob. 17RCCCh. 18 - Prob. 18RCCCh. 18 - Prob. 19RCCCh. 18 - Prob. 20RCCCh. 18 - Prob. 21RCCCh. 18 - Prob. 22RCCCh. 18 - What are some features of arthropods?Ch. 18 - Prob. 24RCCCh. 18 - Prob. 25RCCCh. 18 - What is the difference between an ectotherms and...Ch. 18 - Prob. 27RCCCh. 18 - Prob. 28RCCCh. 18 - Prob. 29RCCCh. 18 - What type of chemical bond is responsible for the...Ch. 18 - Prob. 31TISCh. 18 - Prob. 32TISCh. 18 - Prob. 33TISCh. 18 - Prob. 34TISCh. 18 - Prob. 35TISCh. 18 - Prob. 36TISCh. 18 - Prob. 37TISCh. 18 - Is there any evidence that global warming has...Ch. 18 - Prob. 39TISCh. 18 - Prob. 40TISCh. 18 - Prob. 41TISCh. 18 - Prob. 46TCCh. 18 - Prob. 47TCCh. 18 - Prob. 48TSCh. 18 - Prob. 49TSCh. 18 - If two species belong to the same order, do they...Ch. 18 - Which is more arbitrary: classifying organisms...Ch. 18 - Prob. 52TECh. 18 - How are the three domains of lifeBacteria,...Ch. 18 - Prob. 54TECh. 18 - Prob. 55TECh. 18 - Prob. 56TECh. 18 - Why would life on Earth be impossible without...Ch. 18 - Prob. 58TECh. 18 - Prob. 59TECh. 18 - Prob. 60TECh. 18 - Prob. 61TECh. 18 - Prob. 62TECh. 18 - What are some extreme environments in which...Ch. 18 - We saw that life on Earth would be impossible...Ch. 18 - Are protists single celled or multicellular? Use...Ch. 18 - Prob. 66TECh. 18 - Prob. 67TECh. 18 - Prob. 68TECh. 18 - Prob. 69TECh. 18 - Prob. 70TECh. 18 - Prob. 71TECh. 18 - Compare the cohesion of water and the adhesion of...Ch. 18 - How can a plant gain water by losing water?...Ch. 18 - Prob. 74TECh. 18 - What do fungi and animals have in common? How do...Ch. 18 - Prob. 76TECh. 18 - Prob. 77TECh. 18 - The bluefire jellyfish in the photo has caught a...Ch. 18 - Prob. 79TECh. 18 - Prob. 80TECh. 18 - Many snakes can survive eating just once every few...Ch. 18 - What kinds of living things are corals? How do...Ch. 18 - Prob. 83TECh. 18 - Prob. 84TECh. 18 - Prob. 85TECh. 18 - Prob. 86TECh. 18 - All turtles reproduce by laying eggs. There are no...Ch. 18 - Prob. 88TECh. 18 - Prob. 89TECh. 18 - Why are tiny hummingbirds such good fliers? Is it...Ch. 18 - Viruses straddle the line between living and...Ch. 18 - What are some examples of viruses that make us...Ch. 18 - Prob. 93TECh. 18 - Of the three domains of life, Bacteria and Archaea...Ch. 18 - Prob. 95TDICh. 18 - Prob. 96TDICh. 18 - Most living organisms reproduce sexually sometimes...Ch. 18 - Prob. 98TDICh. 18 - Prob. 99TDICh. 18 - Prob. 100TDICh. 18 - Prob. 1RATCh. 18 - Prob. 2RATCh. 18 - Prob. 3RATCh. 18 - Which group contains prokaryotic organisms whose...Ch. 18 - All protists are a eukaryotes. b autotrophs. c...Ch. 18 - Prob. 6RATCh. 18 - Prob. 7RATCh. 18 - All fungi are a hetrotrophs. b multicellular. c...Ch. 18 - Prob. 9RATCh. 18 - Prob. 10RAT
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- • Nature of Resistance Temperature-Resistance Relationship Ohm's Law, Energy and Power Kirchhoff's Law • Maxwell's Mesh Analysis 1. A coil of copper wire (p = 10.37 2-cmil/ft) has a length of 600 ft. What is the length of an aluminum conductor (p 17 cmil/ft), if its cross-sectional area and resistance are the same as those of the copper coil? (Hint: Look for conversion of inches to mils and square inches to square foot. Include it in your solution.) (1 pt) 2. The copper field winding of an electric machine has a resistance of 46 at temperature of 22°C. What will be its resistance at 75°C? (Use do = 0.00427 /°C for copper) (1 pt) 3. The resistivity of a copper rod 50 ft long and 0.25 inch in diameter is 1.76 μ at 20°C. What is its resistance at - 20°C? (1 pt) 4. When two resistors A and B are connected in series, the total resistance is 36 2. When connected in parallel, the total resistance is 8 Q. What is the ratio of the resistance RA to resistance RB? Assume RA < RB. (1 pt) 5. The…arrow_forward2. Two equally strong individuals, wearing exactly the same shoes decide to do a tug of war. The only difference is individual A is 2.5 meters tall and individual B is 1.5 meter tall. Who is more likely to win the tug of war?arrow_forward6. A car drives at steady speed around a perfectly circular track. (a) The car's acceleration is zero. (b) The net force on the car is zero. (c) Both the acceleration and net force on the car point outward. (d) Both the acceleration and net force on the car point inward. (e) If there is no friction, the acceleration is outward.arrow_forward
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