
Conceptual Physics / MasteringPhysics (Book & Access Card)
12th Edition
ISBN: 9780321908605
Author: Paul G. Hewitt
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 12, Problem 87RCQ
Nourishment is obtained from food through the inner surface area of the intestines. Why is it that a small organism, such as a worm, has a simple and relatively straight intestinal tract, while a large organism, such as a human being, has a complex and extensively folded intestinal tract?
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1) A horizontal wire carrying current I in +x direction on the x-axis from x=0 to x=2
2) A vertical wire carrying current I upward at along the x=2 line from y=0 to y=8
3) A diagonal straight wire started at the origin and it ends at y=8 x=2 carrying a current in SE direction ( diagonally downward); y=4x
In a regional magnetic field that is given in vector notation by
B = ( y i - x j )/(x^2+y^2+25)
As components
Bx = (y+1)/x^2+y^2+25)
By = (1- x )/(x^2+y^2+25)
Find the integral expression for the net force for each branch carrying 5 ampere current.
An electric power station that operates at 30 KV and uses
a 15:1 set step-up ideal transformer is producing 400MW
(Mega-Watt) of power that is to be sent to a big city
with only 2.0% loss. What
which is located 270 km
away
is the resistance of the Two wires that are
being used?
52
Slink, from Toy Story, is a slinky dog whose middle section is a giant spring with a spring constant of 10.9 N/m. Woody, who has a mass of 0.412 kg, grabs onto the tail end of Slink and steps off the bed (as shown in figure A) with no initial velocity and reaches the floor right as his velocity hits zero again (as shown in figure C).
Chapter 12 Solutions
Conceptual Physics / MasteringPhysics (Book & Access Card)
Ch. 12 - Prob. 1RCQCh. 12 - 2. What evidence can you cite for the microscopic...Ch. 12 - 3. What happens to the volume of a loaf of bread...Ch. 12 - Prob. 4RCQCh. 12 - Iridium is not the heaviest atom found in nature....Ch. 12 - Prob. 6RCQCh. 12 - Why do we say that a spring is elastic?Ch. 12 - Prob. 8RCQCh. 12 - What is Hooke’s law? Does it apply to elastic...Ch. 12 - What is meant by the elastic limit for a...
Ch. 12 - If a 1-kg object stretches a spring by 2 cm, how...Ch. 12 - Distinguish between tension and compression.Ch. 12 - What and where is the neutral layer in a beam that...Ch. 12 - Why are the cross-sections of metal beams in the...Ch. 12 - Why were so many vertical columns needed to...Ch. 12 - Is it tension or compression that strengthens an...Ch. 12 - Prob. 17RCQCh. 12 - Prob. 18RCQCh. 12 - Prob. 19RCQCh. 12 - Prob. 20RCQCh. 12 - If the linear dimensions of an object are doubled,...Ch. 12 - Prob. 22RCQCh. 12 - Which requires more food per body weight daily: an...Ch. 12 - 24. Is the saying “The bigger they are, the harder...Ch. 12 - Why can small creatures fall considerable...Ch. 12 - Prob. 26RCQCh. 12 - Simulate atomic close packing with a couple dozen...Ch. 12 - Are you slightly longer while lying down than you...Ch. 12 - Hold an egg vertically and dangle a small chain...Ch. 12 - Prob. 30RCQCh. 12 - What is the weight of a cubic meter of cork? Could...Ch. 12 - Prob. 32RCQCh. 12 - Another spring stretches 4 cm when a load of 10 N...Ch. 12 - Prob. 34RCQCh. 12 - 35. A 19.3-g mass of gold in the form of a cube is...Ch. 12 - In 2009, one of the U.S government’s bailout...Ch. 12 - Prob. 37RCQCh. 12 - Consider these three animals: A. dog, B. horse,...Ch. 12 - Prob. 39RCQCh. 12 - Your friend says that the primary difference...Ch. 12 - Prob. 41RCQCh. 12 - Prob. 42RCQCh. 12 - Prob. 43RCQCh. 12 - Prob. 44RCQCh. 12 - Prob. 45RCQCh. 12 - Prob. 46RCQCh. 12 - 47. In a deep dive, a whale is appreciably...Ch. 12 - Prob. 48RCQCh. 12 - Prob. 49RCQCh. 12 - Prob. 50RCQCh. 12 - Prob. 51RCQCh. 12 - Prob. 52RCQCh. 12 - 53. When you bend a meterstick, one side is under...Ch. 12 - Prob. 54RCQCh. 12 - Prob. 55RCQCh. 12 - Prob. 56RCQCh. 12 - Prob. 57RCQCh. 12 - Prob. 58RCQCh. 12 - Prob. 59RCQCh. 12 - 60. Only with great difficulty can you crush an...Ch. 12 - Prob. 61RCQCh. 12 - Prob. 62RCQCh. 12 - Prob. 63RCQCh. 12 - Prob. 64RCQCh. 12 - Prob. 65RCQCh. 12 - Prob. 66RCQCh. 12 - Prob. 67RCQCh. 12 - Prob. 68RCQCh. 12 - Prob. 69RCQCh. 12 - Prob. 70RCQCh. 12 - Prob. 71RCQCh. 12 - Prob. 72RCQCh. 12 - Prob. 73RCQCh. 12 - Prob. 74RCQCh. 12 - Why are mittens warmer than gloves on a cold day?...Ch. 12 - Prob. 76RCQCh. 12 - Prob. 77RCQCh. 12 - Prob. 78RCQCh. 12 - Prob. 79RCQCh. 12 - Prob. 80RCQCh. 12 - Prob. 81RCQCh. 12 - Prob. 82RCQCh. 12 - The uranium atom is the heaviest and most massive...Ch. 12 - Prob. 84RCQCh. 12 - Prob. 85RCQCh. 12 - If you use a batch of cake batter for cupcakes and...Ch. 12 - Nourishment is obtained from food through the...Ch. 12 - Prob. 88RCQCh. 12 - Prob. 89RCQCh. 12 - Prob. 90RCQCh. 12 - Prob. 91RCQ
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
- The character Min Min from Arms was a DLC character added to Super Smash Bros. Min Min’s arms are large springs, with a spring constant of 8.53 ⋅ 10^3 N/m, which she uses to punch and fling away her opponents. Min Min pushes her spring arm against Steve, who is not moving, compressing it 1.20 m as shown in figure A. Steve has a mass of 81.6 kg. Assuming she uses only the spring to launch Steve, how fast is Steve moving when the spring is no longer compressed? As Steve goes flying away he goes over the edge of the level, as shown in figure C. What is the magnitude of Steve’s velocity when he is 2.00 m below where he started?arrow_forwardCalculate the energy needed to melt 50 g of 0°C icearrow_forwardTwo very long line charges are set up along lines that areparallel to the z-axis, so they set up Electric fields strictly in the xy plane. One goes throughthe x-axis at x = −0.40 m and has charge a density λ1 = +12.0 μC/m, the other goesthrough the x-axis at x = +0.40 m has charge density λ2 = −8.0 μC/m.A. Find the Electric field at point A: (0.40, 0.80) (distances in meters). Give answersin unit vector notation and draw a graph of the x-y plane with the E-fields you justfound.B. Find a point on the x-axis at which the total E-field is 0.arrow_forward
- In order to increase the amount of exercise in her daily routine, Tara decides to walk up the four flights of stairs to her car instead of taking the elevator. Each of the steps she takes are 18.0 cm high, and there are 12 steps per flight. (a) If Tara has a mass of 77.0 kg, what is the change in the gravitational potential energy of the Tara-Earth system (in J) when she reaches her car? ] (b) If the human body burns 1.5 Calories (6.28 x 10³ J) for each ten steps climbed, how much energy (in J) has Tara burned during her climb? ] (c) How does the energy she burned compare to the change in the gravitational potential energy of the system? Eburned Δυarrow_forwardA 4.40 kg steel ball is dropped onto a copper plate from a height of 10.0 m. If the ball leaves a dent 2.75 mm deep, what is the average force exerted by the plate on the ball during the impact? Narrow_forwardA block of mass m = 7.00 kg is released from rest from point and slides on the frictionless track shown in the figure below. (Assume h₂ = 7.80 m.) a m ha 3.20 m 2.00 m i (a) Determine the block's speed at points ® and point B ©. m/s m/s point (b) Determine the net work done by the gravitational force on the block as it moves from point J A to pointarrow_forward
- A 1.10 x 10²-g particle is released from rest at point A on the inside of a smooth hemispherical bowl of radius R R B 2R/3 (a) Calculate its gravitational potential energy at A relative to B. ] (b) Calculate its kinetic energy at B. ] (c) Calculate its speed at B. m/s (d) Calculate its potential energy at C relative to B. J (e) Calculate its kinetic energy at C. ] = 26.5 cm (figure below).arrow_forwardReport on the percentage errors (with uncertainty) between the value of 'k' from the F vs displacement plot and each of the values of 'k' from the period measurements. Please comment on the goodness of the results. Value of k = Spring constant k = 50.00 N/m Each of the values of k from period measurements: Six Measurements of time for 5 osccilations: t1 = 7.76s, t2=8.00s, t3=7.40s, t4=7.00s, t5=6.90s, t6=7.10s (t1-tavg)^2 = (7.76-7.36)^2 = 0.16%(t2-tavg)^2 =(8.00-7.36)^2 = 0.4096%(t3-tavg)^2 =(7.40-7.36)^2 = 0.0016%(t4-tavg)^2 =(7.00-7.36)^2 = 0.1296%(t5-tavg)^2 =(6.90-7.36)^2 = 0.2116%(t6-tavg)^2 =(7.10-7.36)^2 = 0.0676arrow_forwardNo chatgpt pls will upvotearrow_forward
- Based on the two periods (from hand timed and ultrasonic sensor), find the value of 'k' they suggest from the physics and from the value of the hanging mass. hand time period is 1.472s and ultrasonic sensor time period is 1.44sarrow_forwardNo chatgpt pls will upvotearrow_forwardExperimental Research Report Template Title: Paper Airplane Flight. Materials: Paper, ruler, tape Procedure: Fold paper into different airplane designs, such as dart, glider, or classic. Measure and record the distances each design flies when thrown with the same force. Discuss aerodynamics and the factors that affect flight distance. Introduction: (What do you expect to learn? What is the purpose of this lab? List any questions this experiment will answer.) Hypothesis: (Predict the outcome(s) of the experiment, must be in an “if…then format.) Materials: (What equipment and materials did you need for this experiment assignment? Describe how any equipment was connected. Also mention any special hardware or connections. List the name and amount of each item used.) Procedures: (What steps did you take to accomplish this lab assignment? Include Safety Precautions.) Data Collection: (Record the data that is required at each step of the…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 LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher: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

An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning

University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University

Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill

Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Newton's Third Law of Motion: Action and Reaction; Author: Professor Dave explains;https://www.youtube.com/watch?v=y61_VPKH2B4;License: Standard YouTube License, CC-BY