Conceptual Physics (12th Edition)
12th Edition
ISBN: 9780321909107
Author: Paul G. Hewitt
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 38RCQ
Consider these three animals: A. dog, B. horse, and C. elephant. Rank them, from highest to lowest, for their
- surface areas.
- masses.
- weights.
- volumes.
- surface area per weight.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
E
2. What is the smallest number of whole logs (density = 765 kg/m³, radius = 0.084 m, length = 3.27 m) that can be
used to build a raft that will carry 6 people, each of whom has a mass of 80.0 kg?
logs
MAR 2
27
888
F4
R
%
5
T
G
tv
6
MacBook Air
&
7
H
U
8
A
9
DD
W
F10
zoom X
KL
K
P
by mi
04 M
quies or rne puffer s
2. It has been proposed that we could explore Mars using inflated balloons to hover just above the surface. The
buoyancy of the atmosphere would keep the balloon aloft. The density of the Martian atmosphere is p = 0.0154
kg/m³ (although this varies with temperature). Suppose we construct these balloons of a thin but tough plastic
having an area density = 5.10 g/m² (i.e., each square meter has a mass of 5.10 g). We inflate the balloons
with a very light gas whose mass we can neglect.
a) If such a balloon were floating just above the surface of Mars, what forces would be acting on it? Express
each force in terms of the balloon's radius along with the parameters given above, and calculate the necessary
radius for the balloon to be in equilibrium.
b) Calculate the mass of a balloon with the radius you found in part (a).
c) Suppose we release a balloon of this size on Earth, where the density of the atmosphere is 1.3 kg/m³.
Would it go up, go down, or hover in place? Calculate its initial…
In order for a balloon launch to be interesting, we will want to tie some sort of payload to the balloon. Payloads can include a video camera, GPS tracking, measurement equipment, etc. If the payload that we plan to attach has a mass of 2.7 kg, what is the minimum volume of our Hydrogen balloon that is needed to lift it into the air?
Chapter 12 Solutions
Conceptual Physics (12th Edition)
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
- True or false ? The ICRU sphere (ICRU, 1980) is a 30 cm diameter, tissue equivalent sphere with a density of 1 g cm-3arrow_forwardQ5: An object consist of two pieces. The mass of one piece has been measured to be (6 kg). The volume of second piece, which is made from aluminum, has been measured to be (4.44*10^-4 m^3). A handbook lists the density of aluminum as (2.7*10^3 kg/m^3). What is the total mass of the objectarrow_forward# 3) There are a 3cm x 3cm x 3cm cube of gold and a 3cm x 3cm x 3cm cube of aluminum. The density of gold is 19.3 g/cm³ and the density of aluminum is 2.7 g/cm³. Which has a larger mass and what is that mass?arrow_forward
- Consider the air above a football field. The field has an area of 5.4x10^3 m^2. Consider the air in the region extending from the ground to 1 m above the surface of the field. Calculate the volume of air in m^3.arrow_forward1. A deep sea diver is working at a depth where the pressure is 4.0 atmospheres. He is breathing out air bubbles. The volume of each air bubble is 2 cm?. At the surface the pressure is 12 atmospheres. What is the volume of each bubble when it reaches the surface?arrow_forwardA golden-colored cube is handed to you. The person wants you to buy it for $100, saying that is a gold nugget. You pull out your old geology text and look up gold in the mineral table and read that its density is 19.3 g/cm3. You measure the cube and find that it is 3cm on each side, and weighs 40 g. What is its density? Is it gold? Should you buy it?arrow_forward
- 7. The beds in your dorm room have extra-long mattresses. These mattresses are 80 inches long and 39 inches wide. (Regular twin beds are 72 inches long.) What is the area of the mattress top in m2? (1 inch = 2.54 cm)arrow_forwardA man who has a volume of four point five cubic feet and a weight of three hundred fifty pounds wishes to travel across the ocean on a ship. In order to obtain insurance he must promise to wear a life preserver at all times. If the life preserver weighs twelve pounds, what is the minimum volume that the life preserver can have so that he will be a good insurance risk?Required to answer. Single choice.arrow_forwardThe Moon's density is 3.3 kg/L. Suppose that the Moon is made of just two substances: silicates with a density of 3.0 kg/L, and iron with a density of 7.9 kg/L. a. What fraction of its mass must be iron? % of the Moon's mass must be iron. b. What fraction of its volume must be iron? % of the Moon's volume is iron.arrow_forward
- Oceans cover 71% of the surface of the Earth, and have an average depth of 3700 m. The planet has an average radius of 6370 km, so that the oceans form a very thin layer overall! The deepest known part of the ocean is the Mariana Trench, north of Papua New Guinea and east of the Phillipines, with a depth of almost 11000 m. If Mount Everest was placed at the bottom of the Mariana Trench, it would still be submerged by more than 2000 m! Estimate the volume of water contained in all of the oceans on Earth, and give the result in SI units. Be sure to state your assumptions with your calculation. Oceansarrow_forwardIn 1960, the U.S. Navy’s bathyscaphe Trieste (a submersible) descended to a depth of nearly 11 km in the Marianas Trench near the Philippines in the Pacific Ocean. Instead of a large viewing window, it had a small circular window 15 cm in diameter. What is your explanation for so small a window?arrow_forwardKhalid n, T-2, AY 2020-2021 Physics Final Exam, T-2, AY 2020-2021 Cs Exams Calculate the absolute pressure at an ocean depth of 2.8 km. Assume that the density Water, Pwater is 1.025 × 103 kg/m³ and the atmospheric pressure, Patmosphere = 1.01 x 10 Pa. (Use: acceleration due to gravity, g= 9.8 m/s2) Select one: a. 2.82 x 10 Pa b. 2.42 x 106 Pa c. 1.29 x 105 Pa Previous page Next page Go to Settings to activate Windows. 8:23 AM ) G ENG x1 Pョ w目 4/8/2021 Chat with a Counsellorarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author: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
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
A Level Physics – Ideal Gas Equation; Author: Atomi;https://www.youtube.com/watch?v=k0EFrmah7h0;License: Standard YouTube License, CC-BY