Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 3, Problem 28Q
To determine
To explain:
What can you conclude, if two cranes are lifting identical steel beams at the same time? One crane is putting out twice as much power as the other.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The friction force on the box is 75.0 N. During this process, what is the work
done on the cabinet by its own weight, in Joule? Use g = 10.0 m/s². (Hint: What is the angle between the weight force and the displacement?)
Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit
is needed in your answer, it is already given in the question statement.
5.0 m
841
841
15.0°
Selected Answer:
Correct Answer:
Answer range +/- 1 (840 - 842)
pls answer #28
Analyze the problems carefully, then solve them. Be systematic when answering. Write the given, label them; the required; and all calculations pertinent to the problem. Express your numerical answers with the appropriate number of significant figures.
A chain of length 11 m and a mass per unit length of 0.6 kg/m initially lies coiled on the ground. Find the work done
(in Joules) in raising one end of the chain to a height 15 m above the ground.
Use g = 9.81 m/s² for the acceleration due to gravity. Write only the numerical answer in the box below. Do not
include the units. To be graded correct, your answer must be correct to three significant digits.
This question accepts numbers or formulas.
Plot | Help | Switch to Equation Editor | Preview
Chapter 3 Solutions
Inquiry into Physics
Ch. 3 - Distinguish between what a physicist and a...Ch. 3 - If the population in a certain country was...Ch. 3 - Describe the basic features of the “lighthouse”...Ch. 3 - Prob. 2AACh. 3 - Prob. 1PIPCh. 3 - Prob. 1MIOCh. 3 - Repeat Exercise I for Section 3.2 on linear...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...
Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 8QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 10QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 12QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 16QCh. 3 - Prob. 17QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 21QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 25QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 28QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 30QCh. 3 - Prob. 31QCh. 3 - Prob. 32QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 34QCh. 3 - (¦ Indicates a review question, which means it...Ch. 3 - A sprinter with a mass of 65 kg reaches a speed of...Ch. 3 - Which has the larger linear momentum: a 2,000-kg...Ch. 3 - In Section 2.4, we computed the force needed to...Ch. 3 - A runner with a mass of 80 kg accelerates from 0...Ch. 3 - In Section 1.4, we considered the collision of a...Ch. 3 - A basketball with a mass of 0.62 kg falls...Ch. 3 - A pitcher throws a 0.5-kg ball of clay at a 6-kg...Ch. 3 - A 3,000-kg truck runs into the rear of a 1,000-kg...Ch. 3 - A 50-kg boy on roller skates moves with a speed of...Ch. 3 - . Two persons on ice skates stand face to face and...Ch. 3 - . A loaded gun is dropped on a frozen lake. The...Ch. 3 - . A running back with a mass of 80 kg and a speed...Ch. 3 - . A motorist runs out of gas on a level road 200 m...Ch. 3 - . In Figure 3.10, the rock weighs 100 lb and is...Ch. 3 - . A weight lifter raises a 100-kg barbell to a...Ch. 3 - Prob. 16PCh. 3 - . A personal watercraft and rider have a combined...Ch. 3 - As it orbits Earth, the 11,000-kg Hubble Space...Ch. 3 - . The kinetic energy of a motorcycle and rider is...Ch. 3 - . In compressing the spring in a toy dart gun,...Ch. 3 - . An archer using a simple bow exerts a force of...Ch. 3 - A worker at the top of a 629-m-tall television...Ch. 3 - . A 25-kg child uses a pogo stick to bounce up and...Ch. 3 - . A student drops a water balloon out of a dorm...Ch. 3 - . A child on a swing has a speed of 7.7 m/s at the...Ch. 3 - . The cliff divers at Acapulco, Mexico, jump off a...Ch. 3 - . At NASA's Zero Gravity Research Facility in...Ch. 3 - . The fastest that a human has run is about 12...Ch. 3 - . A bicycle and rider going 10 m/s approach a...Ch. 3 - . In January 2003, an 18-year-old student gained a...Ch. 3 - The ceiling of an arena is 20 m above the floor....Ch. 3 - . Compute how much kinetic energy was “lost” in...Ch. 3 - Compute how much kinetic energy was “lost” in the...Ch. 3 - . A 1,000-W motor powers a hoist used to lift cars...Ch. 3 - . How long does it take a worker producing 200 W...Ch. 3 - . An elevator is able to raise 1,000 kg to a...Ch. 3 - . A particular hydraulic pile driver uses a ram...Ch. 3 - . A compact car can climb a hill in 10 s. The top...Ch. 3 - . In the annual Empire State Building race,...Ch. 3 - . It takes 100 minutes for a middle-aged physics...Ch. 3 - . Two small 0.25-kg masses are attached to...Ch. 3 - Rank the following three collisions in terms of...Ch. 3 - A bullet with a mass of 0.01 kg is tired...Ch. 3 - In a head-on, inelastic collision, a 4,000-kg...Ch. 3 - Prob. 4CCh. 3 - Prob. 5CCh. 3 - The "shot" used in the shot-put event is a metal...Ch. 3 - Prob. 7CCh. 3 - Prob. 8CCh. 3 - A series of five 0.1-kg spheres are arrayed along...
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
- Please answer #21 with full solutions. Thank you! Analyze the problems carefully, then solve them. Be systematic when answering. Write the given, label them; the required; and all calculations pertinent to the problem. Express your numerical answers with the appropriate number of significant figures.arrow_forwardI need help with this problem and an explanation for the solution described below. (University Physics 1: Application of Newton's laws, Work & Kinetic Energy, Potential Energy & Conservation of Energy)arrow_forwardMay I know if I put the correct answer in the blanks? Correct me If I'm wrong. Thanks!arrow_forward
- (a) Find the work done by a crane which raises a load of 250 kg through a distance of 5.6 m. (b) Blocks, each of mass 5 kg and height 10 cm, are lying side by side on the ground. How much work would be involved in making a stack i. ten blocks high ii. n blocks high?arrow_forwardA chain 63 meters long whose mass is 28 kilograms is hanging over te edge of a tall building and does not touch the ground. How much work is required to lift the top 10 meters of the chain to the top of the building? Use that the acceleration due to gravity is 9.8 meters per second squared. Please include the correct units.arrow_forwardAnswer the following problem with the complete step-by-step process (showing the given, required, process/solution, and graph if possible). 1. A 15.0-g bullet is accelerated from rest to a speed of 780 m/s in a rifle barrel of length 72.0 cm. (a) Find the kinetic energy of the bullet as it leaves the barrel. (b) Use the work–kinetic energy theorem to find the net work that is done on the bullet.arrow_forward
- (a) A baseball weighs 5.13 oz. What is the kinetic energy, in joules, of this baseball when it is thrown by a major league pitcher at 95.0 mi/h? (b) By what factor will the kinetic energy change if the speed of the baseball is decreased to 55.0 mi/h? (c) What happens to the kinetic energy when the baseball is caught by the catcher? Is it converted mostly to heat or to some form of potential energy?arrow_forwardCan someone please show me the solution/computation and illustrations for this? With explanation. Thanks 1. A 62 kg student does 55 pushups in 45 seconds. With each pushup, the student must lift an average of 68% of the body mass a height of 41 cm off the floor. a) Calculate the work the student does against gravity for each pushup. Assume that work is done only when pushing upward. b) Calculate the total work done against gravity in 45 seconds. c) Calculate the power generated for this period.arrow_forwardI need steps to solve this to understand itarrow_forward
- A 1500 kg car is pulled 250 m up a 12° incline. (a) How much does the altitude of the car change over this distance? (b) How much work is required to pull the car up this far, ignoring friction? show your work, including diagrams, algebraic equations, and enough written explanations that somebody who is not familiar with the problem could understand what you are doing.arrow_forwardPlease answer the following question(s): 1. (a) What is the average useful power output of a person who does 7.0000 x10 J of useful work in 7.0000 hr? P= (b) Working at this rate, how long will it take this person to lift 2100.0000 kg of bricks up a 1.5000-m platform? Hint: Work done to lift his body can be omitted because it is not considered useful output here. t= Search Submit Answer see other options - If you don't want to answer the question right now View Forum Activities (0 new of 0) Powered by CogBooks f6 1- W f7 ♫+ fg Answering the question(s) helps us recommend your next activity. 99+ O fg বিব f10 f11 DDI f12 {9} harrow_forwardHint: using energy conservation instead of kinematic equations to answer the following questions although both will give you the same answers. You have your textbook and pen with you while working on this exam. Assume the height of your working desk is H=1.0 m above the floor, the mass of your book is 100 times the mass of your pen. Assume there is no air friction in your room. (1) What is the ratio UpookUpen of their potential energies with respect to the ground? (2) If both the book and the pen drop from rest from your table to the floor, what will be the ratio Vbook Y of their speed(s) right before they hit the ground? pen (3) If you jump from rest from the top of your table to the ground, what will be your speed right before you hit the ground with respect to that of your pen? Prove your answer with physics laws. Bomarrow_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
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Work and Energy - Physics 101 / AP Physics 1 Review with Dianna Cowern; Author: Physics Girl;https://www.youtube.com/watch?v=rKwK06stPS8;License: Standard YouTube License, CC-BY