Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 21, Problem 89TE
To determine
To explain :
The reason for the fact that the number of zebras is more than the number of lions in the African savanna.
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Consider the series
M8
3
ཱ|༤༠
n=0
5n
a. Find the general formula for the sum of the first k terms. Your answer should be in terms of k.
Sk=3
1
5
5
k
b. The sum of a series is defined as the limit of the sequence of partial sums, which means
k
3
5n
1-
= lim
3
k→∞
n=0
4
15
4
c. Select all true statements (there may be more than one correct answer):
A. The series is a geometric series.
B. The series converges.
C. The series is a telescoping series (i.e., it is like a collapsible telescope).
D. The series is a p-series.
A uniform ladder of length L and weight w is leaning against a vertical wall. The coefficient of static friction between the ladder and the floor is the same as that between the ladder and the wall. If this
coefficient of static friction is μs : 0.535, determine the smallest angle the ladder can make with the floor without slipping.
°
=
A 14.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 55.0°-angle with the horizontal.
(a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 850-N firefighter has climbed 4.10 m along the ladder from the bottom.
horizontal force
magnitude
342.
N
direction
towards the wall
✓
vertical force
1330
N
up
magnitude
direction
(b) If the ladder is just on the verge of slipping when the firefighter is 9.10 m from the bottom, what is the coefficient of static friction between ladder and ground?
0.26
×
You appear to be using 4.10 m from part (a) for the position of the…
Your neighbor designs automobiles for a living. You are fascinated with her work. She is designing a new automobile and needs to determine how strong the front suspension should be. She knows of
your fascination with her work and your expertise in physics, so she asks you to determine how large the normal force on the front wheels of her design automobile could become under a hard stop,
ma
when the wheels are locked and the automobile is skidding on the road. She gives you the following information. The mass of the automobile is m₂ = 1.10 × 103 kg and it can carry five passengers of
average mass m = 80.0 kg. The front and rear wheels are separated by d = 4.45 m. The center of mass of the car carrying five passengers is dCM = 2.25 m behind the front wheels and
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Chapter 21 Solutions
Conceptual Integrated Science
Ch. 21 - What is ecology?Ch. 21 - Prob. 2RCQCh. 21 - What is the difference between a community and an...Ch. 21 - Describe exponential growth. Under what conditions...Ch. 21 - Why do populations that live in unstable...Ch. 21 - Describe logistic growth. Under what conditions do...Ch. 21 - What are the differences between Type I, Type II,...Ch. 21 - Explain how global human population size is...Ch. 21 - What is the age structure of a population? What...Ch. 21 - Prob. 10RCQ
Ch. 21 - What is the name for a diagram of who eats whom in...Ch. 21 - Explain the difference between a producer and a...Ch. 21 - What is a decomposer? What organisms function as...Ch. 21 - Can two species have the exact same niche in a...Ch. 21 - Define parasitism, and provide some examples.Ch. 21 - How does primary succession differ from secondary...Ch. 21 - Why are the later colonizers of a habitat...Ch. 21 - What usually happens to the total biomass in an...Ch. 21 - How can regular disturbances contribute to the...Ch. 21 - Prob. 20TISCh. 21 - Prob. 21TISCh. 21 - Which biome includes more living things than all...Ch. 21 - Prob. 23TISCh. 21 - Prob. 24TISCh. 21 - Prob. 25TISCh. 21 - Prob. 26TISCh. 21 - Prob. 27TISCh. 21 - What role do nitrogen-fixing bacteria and...Ch. 21 - Prob. 29TISCh. 21 - Prob. 30TISCh. 21 - Prob. 31TISCh. 21 - Prob. 32TISCh. 21 - Prob. 33TISCh. 21 - Prob. 38TCCh. 21 - Prob. 39TCCh. 21 - Suppose that you have a logistically growing...Ch. 21 - In a population of songbirds, 100 young are born...Ch. 21 - In a population of insects, 1 million young are...Ch. 21 - Prob. 43TSCh. 21 - Does a community contain multiple populations?...Ch. 21 - Prob. 45TECh. 21 - Prob. 46TECh. 21 - A scientist examines how the presence of a...Ch. 21 - How are exponential growth and logistic growth...Ch. 21 - What factors could cause population growth to slow...Ch. 21 - Prob. 50TECh. 21 - Suppose that the carrying capacity of a specific...Ch. 21 - Prob. 52TECh. 21 - Why is a baby elephant considered an expensive...Ch. 21 - Would you expect a tiger to have a Type I, Type...Ch. 21 - Name an organism that you might see in your...Ch. 21 - The graph below shows survivorship curves for...Ch. 21 - Prob. 57TECh. 21 - Prob. 58TECh. 21 - Prob. 59TECh. 21 - Prob. 61TECh. 21 - Prob. 62TECh. 21 - Prob. 63TECh. 21 - Prob. 64TECh. 21 - Prob. 65TECh. 21 - Prob. 66TECh. 21 - Prob. 67TECh. 21 - Prob. 68TECh. 21 - Prob. 69TECh. 21 - Prob. 70TECh. 21 - Prob. 71TECh. 21 - Prob. 72TECh. 21 - Prob. 73TECh. 21 - Prob. 74TECh. 21 - Prob. 75TECh. 21 - Prob. 76TECh. 21 - Prob. 77TECh. 21 - Prob. 78TECh. 21 - Prob. 79TECh. 21 - Prob. 80TECh. 21 - Prob. 81TECh. 21 - Prob. 82TECh. 21 - Name at least two different processes that return...Ch. 21 - Prob. 84TECh. 21 - Prob. 85TECh. 21 - Prob. 86TECh. 21 - Prob. 87TECh. 21 - If you eat a pound of pasta, will you gain a pound...Ch. 21 - Prob. 89TECh. 21 - How does the Second Law of Thermodynamics help...Ch. 21 - How does the energy lost during cellular...Ch. 21 - Prob. 92TECh. 21 - Prob. 93TECh. 21 - Prob. 94TECh. 21 - Prob. 95TECh. 21 - Two populations of rabbits are growing...Ch. 21 - Two populations of monkeys are growing...Ch. 21 - Prob. 98TDICh. 21 - What type of survivorship curve characterizes...Ch. 21 - Prob. 100TDICh. 21 - Some acacia trees have evolved a special...Ch. 21 - Prob. 102TDICh. 21 - Prob. 103TDICh. 21 - Prob. 104TDICh. 21 - Would you expect to find more Type I or Type III...Ch. 21 - Prob. 1RATCh. 21 - A Type III population is associated with a...Ch. 21 - Prob. 3RATCh. 21 - Prob. 4RATCh. 21 - Prob. 5RATCh. 21 - Prob. 6RATCh. 21 - Prob. 7RATCh. 21 - Prob. 8RATCh. 21 - Prob. 9RATCh. 21 - Prob. 10RAT
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