University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 105CP
Answer the preceding problem using polar coordinates.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Only Part B.) is necessary
A (3.60 m)
30.0°-
70.0°
x
B (2.40 m)
In general it is best to conceptualize vectors as arrows in
space, and then to make calculations with them using
their components. (You must first specify a coordinate
system in order to find the components of each arrow.)
This problem gives you some practice with the
components.
Let vectors A = (1,0, -3), B = (-2, 5, 1), and
C = (3,1,1). Calculate the following, and express your
answers as ordered triplets of values separated by
commas.
Chapter 7 Solutions
University Physics Volume 1
Ch. 7 - Check Your Understanding Can kinetic friction ever...Ch. 7 - Check Your Understanding Can Earth’s gravity ever...Ch. 7 - Check Your Understanding Find the work done by the...Ch. 7 - Check Your Understanding The spring Example 7.5 is...Ch. 7 - Check Your Understanding (a) A car and a truck...Ch. 7 - Check Your Understanding You are rowing a boat...Ch. 7 - Check Your Understanding suppose the radius of the...Ch. 7 - Check Your Understanding Estimate the power...Ch. 7 - Give an example of something we think of as work...Ch. 7 - Give an example of a situation in which there is a...
Ch. 7 - Describe a situation in 4iich a force is exerted...Ch. 7 - A body moves in a circle at constant speed. Does...Ch. 7 - Suppose you throw a ball upward and catch it when...Ch. 7 - Why is it more difficult to do sit-ups while on a...Ch. 7 - As a young man, Tarzan climbed up a vine to reach...Ch. 7 - A particle of m has a velocity of . Is its kinetic...Ch. 7 - One particle has mass mand a second particle has...Ch. 7 - A person drops a pebble of mass m1from a height h,...Ch. 7 - The person shown below does work on the lawn...Ch. 7 - Work done on a system puts energy into it. Work...Ch. 7 - Two marbles of masses mand 2mare dropped from a...Ch. 7 - Compare the work required to accelerate a car of...Ch. 7 - Suppose you are jogging at constant velocity. Are...Ch. 7 - Two forces act to double the speed of a particle,...Ch. 7 - Most electrical appliances are rated in watts....Ch. 7 - Explain, in terms of the definition of power, why...Ch. 7 - A spark of static electricity, such as that you...Ch. 7 - Does the work done in lifting an object depend on...Ch. 7 - Can the power expended by a force be negative?Ch. 7 - How can a 50-W light bulb use more energy than a...Ch. 7 - Work How much work does a supermarket checkout...Ch. 7 - A 75.0-kg person climbs stairs, gaining 2.50 m in...Ch. 7 - (a) Calculate the work done on a 1500-kg elevator...Ch. 7 - Suppose a car travels 108 km at a speed of 30.0...Ch. 7 - Calculate the work done by an 85.0-kg man who...Ch. 7 - How much work is done by the boy pulling his...Ch. 7 - A shopper pushes a grocery cart 20.0 m at constant...Ch. 7 - Suppose the ski patrol lowers a rescue sled and...Ch. 7 - A constant 20-N force pushes a small ball in the...Ch. 7 - A toy cart is pulled a distance of 6.0 m in a...Ch. 7 - A 5.0-kg box rests on a horizontal surface. The...Ch. 7 - A sled plus passenger with total mass 50 kg is...Ch. 7 - Suppose that the sled plus passenger of the...Ch. 7 - How much work does the force do on a particle as...Ch. 7 - How much work is done against the gravitationaI...Ch. 7 - It takes 500 J of work to compress a spring 10 cm....Ch. 7 - A bungee cord is essentially a very long rubber...Ch. 7 - A bungee cord exerts a nonlinear elastic force of...Ch. 7 - Engineers desire to model the magnitude of the...Ch. 7 - A particle moving in the xy -plane is subject to a...Ch. 7 - A particle moves along a curved path...Ch. 7 - Kinetic Energy Compare the kinetic energy of a...Ch. 7 - (a) How fast must a 3000-kg elephant move to have...Ch. 7 - Estimate the kinetic energy of a 90,000-ton...Ch. 7 - Calculate the kinetic energies of (a) a 2000.0-kg...Ch. 7 - A 5.0-kg body has three times the kinetic energy...Ch. 7 - An 8.0-g bullet has a speed of 800 m/s. (a) What...Ch. 7 - (a) Calculate the force needed to bring a 950-kg...Ch. 7 - A car’s bumper is designed to withstand a 4.0-km/...Ch. 7 - Boxing gloves are padded to lessen the force of a...Ch. 7 - Using energy considerations, calculate the average...Ch. 7 - A 5.0-kg box has an acceleration of 2.0m/s2 when...Ch. 7 - A constant 10-N horizontal force is applied to a...Ch. 7 - In the preceding problem, the 10-N force is...Ch. 7 - Compare the work required to stop a 100-kg crate...Ch. 7 - A wagon with its passenger sits at the top of a...Ch. 7 - An 8.0-g bullet with a speed of 800 m/s is shot in...Ch. 7 - A 2.0-kg block starts with a speed of 10 m/s at...Ch. 7 - When a 3.0-kg block is pushed against a massless...Ch. 7 - A small block of mass 200 g starts at rest at A,...Ch. 7 - A small object is placed at the top of an incline...Ch. 7 - When released, a 100-g block slides down the path...Ch. 7 - A 0.22LR-caliber bullet like that mentioned in...Ch. 7 - A sled stalls from rest at the top of a...Ch. 7 - A person in good physical condition can put out...Ch. 7 - What is the cost of operating a 3.00-W electric...Ch. 7 - A large household air conditioner may consume 15.0...Ch. 7 - (a) What is the average power consumption in watts...Ch. 7 - (a) What is the average useful power output of a...Ch. 7 - A 500-kg dragster accelerates from rest to a final...Ch. 7 - (a) How long will it take an 850-kg car with a...Ch. 7 - (a) Fir the useful power output of an elevator...Ch. 7 - (a) How long would it take a 1.50105kg airplane...Ch. 7 - Calculate the power output needed for a 950-kg car...Ch. 7 - A man of mass 80 kg runs up a flight of stairs 20...Ch. 7 - The man of the preceding problem consumes...Ch. 7 - An electron in a television tube is accelerated...Ch. 7 - Coal is lifted out of a mine a vertical distance...Ch. 7 - A girl pulls her 15-kg wagon along a flat sidewalk...Ch. 7 - A typical automobile engine has an efficiency of...Ch. 7 - When jogging at 13 km/h on a level surface, a...Ch. 7 - A cart is pulled a distance D on a flat,...Ch. 7 - Consider a particle on which several forces act,...Ch. 7 - Consider a particle on which several forces act,...Ch. 7 - Consider a particle on which several forces act,...Ch. 7 - Consider a particle on which a force acts that...Ch. 7 - A boy pulls a 5-kg cart with a 20-N force at an...Ch. 7 - A crate of mass 200 kg is to be bright from a site...Ch. 7 - At hokey puck of mass 0.17 kg is shot across a...Ch. 7 - A horizontal force of 20 N is required to keep a...Ch. 7 - A 7.0-kg box slides along a horizontal...Ch. 7 - You are driving your car on a straight road with a...Ch. 7 - A crate is being pushed across a rough floor...Ch. 7 - Suppose a horizontal force of 20 N is required to...Ch. 7 - Grains from a hopper falls at a rate of 10 kg/s...Ch. 7 - A cyclist in a race must climb a 5 hill at a speed...Ch. 7 - Shown below is a 40-kg crate that is pushed at...Ch. 7 - The surface of the preceding problem is modified...Ch. 7 - The force F(x) varies with position, as shown...Ch. 7 - Find the work done by the same force in Example...Ch. 7 - Answer the preceding problem using polar...Ch. 7 - Find the work done by the same force in Example...Ch. 7 - Answer the preceding problem using polar...Ch. 7 - Constant power P is delivered to a car of mass m...Ch. 7 - Suppose that the air resistance a car encounters...Ch. 7 - Consider a linear spring, as in Figure 7.7(a),...
Additional Science Textbook Solutions
Find more solutions based on key concepts
22. As seen from above, a car rounds the curved path shown in Figure Q6.22 at a constant speed. Which vector be...
College Physics: A Strategic Approach (3rd Edition)
Fibrous connective tissue consists of ground substance and fibers that provide strength, support, and flexibili...
Human Biology: Concepts and Current Issues (8th Edition)
18. SCIENTIFIC THINKING By measuring the fossil remains of Homo floresiensis, scientists have estimated its wei...
Campbell Biology: Concepts & Connections (9th Edition)
What are the two types of bone marrow, and what are their functions?
Human Anatomy & Physiology (2nd Edition)
52. You are target shooting using a toy gun that fires a small ball at a speed of 15 m/s. When the gun is fire...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Why are the top predators in food chains most severely affected by pesticides such as DDT?
Campbell Essential Biology with Physiology (5th 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
- fine the magnitude of the vector product express in sq meters what direction is the vector product in -z or +zarrow_forward4) Three point charges of magnitude Q1 = +2.0 μC, Q2 = +3.0 μС, Q3 = = +4.0 μС are located at the corners of a triangle as shown in the figure below. Assume d = 20 cm. (a) Find the resultant force vector acting on Q3. (b) Find the magnitude and direction of the force. d Q3 60° d Q1 60° 60° Q2 darrow_forwardThree point charges of magnitudes Q₁ = +6.0 μС, Q₂ = −7.0 μС, Qз = −13.0 μC are placed on the x-axis at x = 0 cm, x = 40 cm, and x = 120 cm, respectively. What is the force on the Q3 due to the other two charges?arrow_forward
- Two point charges of +30.0 μС and -9.00 μC are separated by a distance of 20.0 cm. What is the intensity of electric field E midway between these two charges?arrow_forwardTwo point charges of +7.00 μС and +10.0 μС are placed inside a cube of edge length 0.100 m. What is the net electric flux due to these charges?arrow_forwardA conducting hollow sphere has a charge density of σ = 12.2 μC/m². If the sphere has a radius of 25 cm, what net charge is on the sphere?arrow_forward
- 9) Consider an electric field right Ĕ = 21+3ĵ. What is the magnitude of the flux of this field through a 4.0 m² square surface whose corners are located at (x,y,z) = (0, 2, 1), (2, 2, 1), (2, 2, −1), (0, 2, −1)? Ꮓ ту x (0,2,1) Surface 2 Surface (2,2,1) y Ē (0,2,-1) (2,2,-1) 2 xarrow_forwardNo chatgpt pls will upvotearrow_forward2 聯梧桐紀 PAGENIN ERA 5 7 DOG FAMILY puppies C01: Physical Quantities, Units and Measurements 4 A student wanted to measure the diameter of a cylindrical water bottle. Which of the following gives the most accurate measurement? A B CD Take three measurements of the diameter using a rule before finding the average. Take three measurements of the diameter using a digital micrometer screw gauge, resetting to zero before every measurement before finding the average. Take three measurements of the diameter using the digital calipers, resetting to zero before every measurement before finding the average. Take three measurements of the diameter using the digital calipers without resetting to zero before every measurement before finding the average. The resultant force FR acting on an object is given by, FR = ma, where m is the mass of the object in kg and a is the acceleration of the object in m/s². Which unit is equivalent to the unit for force? A B с D kg ms² kg m²s kg m/s² kg m²/s² adt to…arrow_forward
- C01: Physical Quantities, Units and Measurements 10 A student uses a rule to measure a thin piece of wire. wire 0 1 cm 2 3 4 5 5 6 7 8 9 10 11 12 13 14 15 (a) State two errors in the student's measurement of the length of wire. [2] The student records the length of the wire as 12.8 cm. [E] The student is asked to measure the thickness of the wire using a pencil and the same rule. Suggest how this can be done as accurately as possible. [4] (b) The student finds out that the density of the wire is 2.7 g/cm³. Express 2.7 g/cm³ in kg/m³. [2] to V emulov or worl? гавтоха [E11 The length of a sheet of plastic is measured using a 15 cm rule. eq 8 5 Imm 1 2 سيلينا 3 3 5 7 8 10 11 12 13 14 L ins 15 sem of beiupe stipib e elun olfastq e riliw bei inebulz A H com al Jari Inemundeni or ezoori (s) re the sheet of plasticarrow_forwardtion v more m C01: Physical Quantities, Units and Measurements 8 The following shows a pencil. (a) pencil sharpened section Describe how you would use a piece of string and a rule to determine the circumference c of the unsharpened section of the pencil. [3] nd pupp e e E (b) The student's value for the circumference c is 2.5 cm. Suggest a source of error in determining the circumference of the pencil. [1] ntit ble Ec et (c) Show the volume V of the unsharpened section of the pencil is V = c²x [3] ΑΠ 55 sn ar 2 72 C: or n/ el D a 7 9 (d) Express the volume VE of the sharpened section of the pencil in terms of c and y. pilasi to leeries to rignal on [3] State any assumptions made. lau besser A student is required to measure the thickness of a ream of 500 sheets of A4 size paper. He is supplied with a plastic rule, a digital micrometer screw gauge and a pair of digital calipers. (a) Choose the instrument that is most suitable to measure the thickness of the ream of paper. Give two…arrow_forward5 C01: Physical Quantities, Units and Measurements 4 Complete the table by stating a suitable instrument for obtaining each of the following lengths to be measured. (6) Length to be measured (a) 12.0 cm (b) 8.880 mm (c) 4.440 cm (d) (e) internal diameter of a test tubes bas thickness of a wire (f) height of a bedroom Suitable Instrument 5 Fill in the blanks by making estimates of each of the following quantities. [5] (a) The thickness of a sheet of paper = mm (b) The time for one heartbeat = (c) The mass of 500 cm3 of water = S g (d) The height of a 4-year-old = 3 (e) The average human reaction time S hoda 6 A student has a stack of 20 identical coins. The following diagram shows the student measuring the height of the stack using a rule.uis en cm 15. 10 7 eye (6) ream of (3) emuntani na mBM (0) 5. stack of 20 coins 0 (b) With his eye at the position shown, the student's measurement of the height of the stack is 6.8 cm. (a) Suggest two reasons why the student's measurement is…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Mechanical work done (GCSE Physics); Author: Dr de Bruin's Classroom;https://www.youtube.com/watch?v=OapgRhYDMvw;License: Standard YouTube License, CC-BY