Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 7PCE
A One-Percent Grade A road that rises 1 ft for every 100 ft traveled horizontally is said to have a 1% grade. Portions of the Lewiston grade, near Lewiston, Idaho, have a 6% grade. At what angle is this road inclined above the horizontal?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
2. Bones and Muscles. A patient in therapy has a forearm that weighs -20.5Nj and that lifts a
-112.0Nj weight. These two forces have direction vertically downward. the only other significant
forces on his forearm come from the biceps muscle (which acts perpendicularly to the forearm) and
the force at the elbow. If the biceps produces a pull of 232 N when the forearm is raised above 43°
the horizontal, find the magnitude and direction of the force that the elbow exerts on the forearm.
(The sum of the elbow force and the biceps force must balance the weight of the arm and the
weight it is carrying, so their vector sum must be 132.5 N, upward.)
Vector addition Given the following vectors:
A = 10mi + 20m
2
4. P=Z+L
5. F=A+L+G+L
6. S=P-F
G=55.2m, 45° South of West
L = 10m, 85° East of South
Draw the graphical representation and compute for the x- and y- components and the angle of the
following resultant vectors:
3. R=A+G
A 3 m high embankment is to be constructed as shown in the figure. If the unit
weight of soil used in the embankment is 19 kN/m³, calculate the vertical stress due to the
embankment loading at points P1, P2, and P3.
10.5
7.5
6
4.5
K
CE
4.5
3.0
|y= 19 kN/m
B
3.0
3.0 i-3.0
P3
Note: All dimensions are in metres
P,
The maximum height h of a mountain depends on the density of the rock the mountain is made out of ?ρ , the acceleration due to gravity g on the planet where the mountain is located, and the stress ?σ required to break the rock. The SI units of stress are N/m2. The maximum mountain height can be written as
ℎ=???????h=kρxgyσz ,
where k is some unitless constant. What must be the value of y?
Chapter 3 Solutions
Physics (5th Edition)
Ch. 3.1 - Is it possible for two vectors to be different...Ch. 3.2 - A vector has the components Ax = 5 m and Ay = 3 m....Ch. 3.3 - Several vectors are shown in Figure 3-16. The red...Ch. 3.4 - Which of the vectors shown in Figure 3-20 has the...Ch. 3.5 - An object moves along the brown path in Figure...Ch. 3.6 - Suppose the speed of the boat is increased in part...Ch. 3 - For the following quantities, indicate which is a...Ch. 3 - Which, if any of the vectors shown in Figure 3-36...Ch. 3 - Given that A+B=0, (a) how does the magnitude of B...Ch. 3 - Can a component of a vector be greater than the...
Ch. 3 - Prob. 5CQCh. 3 - Can a vector with zero magnitude heve one or more...Ch. 3 - Prob. 7CQCh. 3 - Prob. 8CQCh. 3 - Prob. 9CQCh. 3 - Prob. 10CQCh. 3 - Prob. 11CQCh. 3 - Use a sketch to show that two vectors of unequal...Ch. 3 - Rain is falling vertically downward and you are...Ch. 3 - When sailing, the wind feels stronger when you...Ch. 3 - Suppose that each component ot a certain vector is...Ch. 3 - Rank the vectors in Figure 3-37 in order of...Ch. 3 - Rank the vectors in Figure 3-37 in order of...Ch. 3 - Rank the vectors in Figure 3-37 in order of...Ch. 3 - The press box at a baseball park is 44.5 ft above...Ch. 3 - You are driving up a long, inclined road. After...Ch. 3 - A One-Percent Grade A road that rises 1 ft for...Ch. 3 - You walk in a straight line tor 95 m at an angle...Ch. 3 - Find the x and y components of a position vector r...Ch. 3 - A vector has the components Az = 22 m and Ay = 13...Ch. 3 - A vector has the components Az = 36 m and Ay = 43...Ch. 3 - A baseball diamond (Figure 3-38) is a square with...Ch. 3 - A lighthouse that rises 49 ft above the surface of...Ch. 3 - H2O A water molecule is shown schematically in...Ch. 3 - Prob. 15PCECh. 3 - You drive a car 660 ft to the east, then 340 ft to...Ch. 3 - Vector A has a magnitude of 50 units and points in...Ch. 3 - A treasure map directs you to start at a palm tree...Ch. 3 - A whale comes to the surface to breathe and then...Ch. 3 - Consider the vectors A and B shown in Figure 3-42....Ch. 3 - Refer to Figure 3-42 for the following questions...Ch. 3 - A vector A has a magnitude of 40.0 m and points in...Ch. 3 - An air traffic controller observes two airplanes...Ch. 3 - The initial velocity of a car, vi, is 45 km/h in...Ch. 3 - Vector A points in the positive x direction and...Ch. 3 - Vector A points in the negative x direction and...Ch. 3 - Vector A points in the negative y direction and...Ch. 3 - A basketball player runs down the court, following...Ch. 3 - A particle undergoes a displacement r of magnitude...Ch. 3 - A vector has a magnitude of 3.50 m and points in a...Ch. 3 - A vector A has a length of 6.1 m and points in the...Ch. 3 - The vector 5 2 A has a magnitude of 34 m and...Ch. 3 - Find the direction and magnitude of the vectors....Ch. 3 - Find the direction and magnitude of the vectors....Ch. 3 - For the vectors given in Problem 34, express (a)...Ch. 3 - Express each of the vectors in Figure 3-44 in unit...Ch. 3 - Referring to the vectors in Figure 3-44, express...Ch. 3 - The blue curves shown in Figure 3-45 display the...Ch. 3 - What are the direction and magnitude of your total...Ch. 3 - Predict/Calculate Moving the Knight Two of the...Ch. 3 - To visit your favorite ice cream shop, you must...Ch. 3 - Referring to Problem 41, suppose you lake 44 s to...Ch. 3 - You drive a car 1500 ft to the east, then 2500 ft...Ch. 3 - Predict/Calculate A jogger runs with a speed of...Ch. 3 - You throw a ball upward with an initial speed of...Ch. 3 - Consider a skateboarder who starts from rest at...Ch. 3 - In a soccer game a midfielder kicks the ball from...Ch. 3 - The accompanying photo shows a KC-10A Extender...Ch. 3 - As an airplane taxied on the runway with a speed...Ch. 3 - Referring to part (a) of Example 3-11, find the...Ch. 3 - A police car travels at 38.0 m/s due east while in...Ch. 3 - Consider the river crossing problem in Example...Ch. 3 - As you hurry to catch your flight at the local...Ch. 3 - In Problem 53, how much lime would it take you to...Ch. 3 - Predict/Calculate The pilot of an airplane wishes...Ch. 3 - A passenger walks from one side of a ferry to the...Ch. 3 - You are riding on a Jet Ski at an angle of 35...Ch. 3 - Predict/Calculate In Problem 57, suppose the Jet...Ch. 3 - Predict/Calculate Two people take identical Jet...Ch. 3 - CE Predict/Explain Consider the vectors A=(1.2m)x...Ch. 3 - CE Predict/Explain Two vectors are defined as...Ch. 3 - To be compliant with regulations the inclination...Ch. 3 - Find the direction and magnitude of the vector...Ch. 3 - Prob. 64GPCh. 3 - Prob. 65GPCh. 3 - Prob. 66GPCh. 3 - You pilot an airplane with the intent to fly 392...Ch. 3 - Find the x, y, and z components of the vector A...Ch. 3 - Observer 1 rides in a car and drops a ball from...Ch. 3 - A person riding in a subway train drops a ball...Ch. 3 - A football is thrown horizontally with an initial...Ch. 3 - As a function of time, the velocity of the...Ch. 3 - Two airplanes taxi as they approach the terminal....Ch. 3 - A shopper at the supermarket follows the path...Ch. 3 - BIO A food particle from your breakfast takes a...Ch. 3 - Initially a particle is moving at 4.10 m/s at an...Ch. 3 - A passenger on a stopped bus notices that rain is...Ch. 3 - Predict/Calculate Suppose we orient the x axis of...Ch. 3 - Predict/Calculate The Longitude Problem In 1759,...Ch. 3 - Referring to Example 3-11, (a) what heading must...Ch. 3 - Vector A points in the negative x direction....Ch. 3 - As two boats approach the marina, the velocity of...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...Ch. 3 - BIO Motion Camouflage in Dragonflies Dragonflies,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
How do food chains and food webs differ? Which is the more accurate representation of feeding relationships in ...
Biology: Life on Earth (11th Edition)
Modified True/False 1. _____ Biofilms of microorganisms form in aquatic environments only.
Microbiology with Diseases by Body System (5th Edition)
2 Of the uterus, small intestine, spinal cord, and heart, which is/are in the dorsal body cavity?
Anatomy & Physiology (6th Edition)
Name the components (including muscles) of the thoracic cage. List the contents of the thorax.
Human Physiology: An Integrated Approach (8th Edition)
The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a series of tw...
Concepts of Genetics (12th Edition)
Carefully examine the common sedimentary rocks shown In Figure 2.13. Use these photos and the preceding discuss...
Applications and Investigations in Earth Science (9th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Q1. An experiment was conducted in order to find the fracture toughness of a composite material. The resulting force values for different crack lengths are given in the table. a (crack length, mm) F (Force, N) 0.1 400 0.2 455 0.3 483 0.4 510 0.5 535 Find a linear expression for the force versus crack length using the best line as F(a)— с1 а + с2arrow_forwardTHE 500LB BOX IS RAISED USING ROPES AB AND AC. EACH ROPE CAN WITHSTAND A MAXIMUM TENSION OF 2500LB BEFORE BREAKING. IF AB ALWAYS REMAINS HORIZONTAL, DETERMINE THE MINIMUM ANGLE THROUGH WHICH THE BOX CAN BE LIFT.arrow_forwardA compressive force of 6,485 N is applied to a bone that has an outside radius of 2.5 cm and a hollow inside radius of 1.9 cm. Calculate the compressive stress of this bone in N/cm².arrow_forward
- Timmy and Billy are using a ramp to load furniture into a truck. While rolling a 220-pound piano up the ramp, they discover that the truck is too full with other furniture for the piano to fit. Billy holds the piano in place on the ramp while Timmy repositions other items to make room for it in the truck. If the angle of inclination of the ramp is 25°, how many pounds of force must Billy exert to hold the piano in position? Billy must exert pounds of force. (Type an integer or decimal rounded to one decimal place as needed.) 25° 220 lbarrow_forwardA steel wire of diameter 1 mm can support a tension of 0.24 kN. Suppose you need a cable made of these wires to support a tension of 20 kN. The cable should have diameter of what order of magnitude?( with cm ) I know the last relation d2 = d1 (f2 /f1)^0.5 d2= 9.12 mm d2 = 0. 9 cm hence the order of magnitude is 10^zero that correct or errorarrow_forwardThe mandible (lower jaw) is attached to the temporomandibular joint (TMJ). The masseter muscle is responsible for pulling the mandible upward when you are talking or eating. It is attached at a horizontal distance of about 2.40 cm from the TMJ. The horizontal distance from the TMJ to your incisors is 6.60 cm. If the masseter muscle exerts a force of 198 N on your mandible when you bite into an apple at a constant rate, then what is the magnitude of the force exerted by your incisors on your food, assuming that both forces are vertical?arrow_forward
- A vector and has a magnitude of 7 units, and has a magnitude of 5 units, and the cross product of and has a magnitude of 14 units. Find the angle between and .arrow_forwardA ship leaves its home port expecting to travel to a port 500 km due south. Before it can move, a severe storm comes up and blows the ship 100 km due east. How far is the ship from its destination? In what direction must the ship travel to reach its destination?arrow_forwardA plane is traveling straight east at a speed of 400 km/hr. Then a wind traveling 100 km/hr blowing straight south starts. Draw a picture representing this problem. What direction and how fast will the school lane be going?arrow_forward
- An example of large-scale shape elasticity are the plates of the Earth's crust. Consider a 31.2 km thick plate with a cutting or shear module of 5.37 x 1010 N/m2. What is the distance (in m) that the outer face of the plate moves from the inner face, when a shear or shear stress of 7.06 MN/m2 is applied?arrow_forward* O 94% 12:23 E MENG250 - Pract... 2–58. Express each of the three forces acting on the bracket in Cartesian vector form with respect to the x and y axes. Determine the magnitude and direction 0 of F, so that the resultant force is directed along the positive x' axis and has a magnitude of FR = 600 N. F 30° F = 350 N F = 100 N 30° 8arrow_forwardOne end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 385 N. What is the radius of the brass ball?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Newton's First Law of Motion: Mass and Inertia; Author: Professor Dave explains;https://www.youtube.com/watch?v=1XSyyjcEHo0;License: Standard YouTube License, CC-BY