Practice Book For Conceptual Integrated Science
3rd Edition
ISBN: 9780135479759
Author: Paul G. Hewitt, Suzanne A Lyons, John A. Suchocki, Jennifer Yeh
Publisher: PEARSON
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Chapter 21, Problem 86TE
To determine
To find:
The affect of human technology on the nitrogen cycle.
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Shown below is a waterslide constructed in the late 1800's. This slide was unique for its time due to the fact that a large number of small wheels along its
length made friction negligible. Riders rode a small sled down the chute which ended with a horizontal section that caused the sled and rider to skim across
the water much like a flat pebble. The chute was 9.76 m high at the top and 54.3 m long. Consider a rider and sled with a combined mass of 81.0 kg. They
are pushed off the top of the slide from point A with a speed of 2.90 m/s, and they skim horizontally across the water a distance of 50 m before coming to
rest.
9.76 m
Engraving from Scientific American, July 1888
A
(a)
20.0 m/
-54.3 m-
50.0 m
(b)
(a) Find the speed (in m/s) of the sled and rider at point C.
14.14
m/s
(b) Model the force of water friction as a constant retarding force acting on a particle. Find the magnitude (in N) of the friction force the water exerts on the
sled.
162.2
N
(c) Find the magnitude (in N) of the…
A small object with mass 3.60 kg moves counterclockwise with constant angular speed 1.40 rad/s in a circle of radius 2.55 m centered at the origin. It starts at the point with position vector 2.551 m. Then it undergoes an angular displacement of 9.15 rad.
(a) What is its new position vector?
m
(b) In what quadrant is the object located and what angle does its position vector make with the positive x-axis?
---Select--- ✓ at
(c) What is its velocity?
m/s
(d) In what direction is it moving? (Give a negative angle.)
° from the +x direction.
(e) What is its acceleration?
m/s²
(f) What total force is exerted on the object?
N
A spring with unstretched length of 14.3 cm has a spring constant of 4.63 N/m. The spring is lying on a horizontal surface, and is
attached at one end to a vertical post. The spring can move freely around the post. The other end of the spring is attached to a puck
of mass m. The puck is set into motion in a circle around the post with a period of 1.32 s. Assume the surface is frictionless, and the
spring can be described by Hooke's law.
(a) What is the extension of the spring as a function of m? (Assume x is in meters and m is in kilograms. Do not include units in
your answer.)
x =
Your answer cannot be understood or graded. More Information
x
Find x (in meters) for the following masses. (If not possible, enter IMPOSSIBLE.)
(b) m =
0.0700 kg
x
Use your result from part (a), and insert the given value for m. m
(c) m 0.140 kg
×
Use your result from part (a), and insert the given value for m. m
(d) m = 0.180 kg
x
Use your result from part (a), and insert the given value for m. m
(e) m =…
Chapter 21 Solutions
Practice Book For 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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