The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5, Problem 53EAP
Electric Bill. Your electric utility bill probably shows your energy use for the month in units of kilowatt-hours. A kilowatt- hour is defined as the energy used in 1 hour at a rate of 1 kilowatt (1000 watts); that is,
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A kilowatt-hour (kWh) is a unit of measure equal to one thousand watts of electricity being used in one hour. Power companies use this measurement to determine your home energy bill. Consider using a bike for power: It takes 6 minutes pedalling at 24-26 volts consistently to produce just 1/10 (0.1) of a kWh. An average home uses about 25 kWh a day. How long would someone have to pedal at 24-26 Volts to power an average home?
Explain the difference between energy and
power. Which unit of energy is used in your
electricity bill? If your daily electricity usage
on your bill had the number 9.1, what would
be your usage in SI units for the day? What
would your average power be for the day?
A water fountain uses 125 Watts of power each hour. It is run 24 hours each day for 7 days. If electricity costs 10 cents per Kilowatt-hour, how much does it cost to keep the fountain working for those 7 days? Put your answer in $##.## form, but without the money symbol ($).
Chapter 5 Solutions
The Cosmic Perspective (9th Edition)
Ch. 5 - Prob. 1VSCCh. 5 - Prob. 2VSCCh. 5 - Prob. 3VSCCh. 5 - Prob. 4VSCCh. 5 - Prob. 5VSCCh. 5 - Prob. 1EAPCh. 5 - Prob. 2EAPCh. 5 - Why do we say that light is an...Ch. 5 - Prob. 4EAPCh. 5 - List the different forms of light in order from...
Ch. 5 - Prob. 6EAPCh. 5 - Prob. 7EAPCh. 5 - What is electrical charge? Will an electron and a...Ch. 5 - Describe the phase changes of water as you heat...Ch. 5 - Prob. 10EAPCh. 5 - Prob. 11EAPCh. 5 - Prob. 12EAPCh. 5 - Prob. 13EAPCh. 5 - Prob. 14EAPCh. 5 - Prob. 15EAPCh. 5 - Prob. 16EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 19EAPCh. 5 - Prob. 20EAPCh. 5 - Prob. 21EAPCh. 5 - Prob. 22EAPCh. 5 - Prob. 23EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 27EAPCh. 5 - Prob. 28EAPCh. 5 - Prob. 29EAPCh. 5 - Prob. 30EAPCh. 5 - Prob. 31EAPCh. 5 - Prob. 32EAPCh. 5 - Prob. 33EAPCh. 5 - Prob. 34EAPCh. 5 - Prob. 35EAPCh. 5 - Choose the best answer to each of the following....Ch. 5 - Prob. 39EAPCh. 5 - Prob. 40EAPCh. 5 - Prob. 41EAPCh. 5 - Prob. 42EAPCh. 5 - Prob. 43EAPCh. 5 - Atomic Terminology Practice II. What are the...Ch. 5 - Prob. 45EAPCh. 5 - Prob. 46EAPCh. 5 - Prob. 47EAPCh. 5 - Prob. 48EAPCh. 5 - Prob. 49EAPCh. 5 - Prob. 50EAPCh. 5 - Prob. 51EAPCh. 5 - Human Wattage. A typical adult uses about 2500...Ch. 5 - Electric Bill. Your electric utility bill probably...Ch. 5 - Prob. 54EAPCh. 5 - Prob. 55EAPCh. 5 - Prob. 56EAPCh. 5 - Prob. 57EAPCh. 5 - Prob. 58EAPCh. 5 - Prob. 59EAPCh. 5 - Prob. 60EAPCh. 5 - Prob. 61EAP
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
- One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill. Determine the number of joules of energy in one kilowatt-hour.arrow_forwardIf the average household in a region consumes about 5,250 kWh of energy per year. In the region, the average annual solar energy potential is about 1,450 kWh/m² per year. If solar panels are available in sizes of 1 m x 1 m with an efficiency of 18 %, how many panels will be needed to power a house? (Since you can't have a fraction of panel, always round up you number to the next integer.) Your Answer: Answerarrow_forwardIf you expended 1500 watts for 3 hours, how many kilowatt-hours (kWh) would that be? Enter answer as number followed by a space and then the correct units (i.e "123 Unit").arrow_forward
- In a sunny location, sunlight has a power density of about 1 kW/m2 . Photovoltaic solar cells can convert this power into electricity with 16% efficiency. If a typical home uses 390 kW⋅h of electricity per month, how many square meters of solar cells would be required to meet its energy requirements? Assume that electricity can be generated from the sunlight for 8 h/day .arrow_forwardSuppose that you want to build a tower out of bricks. Suppose that each brick has a mass of 0.5 kg and is 0.1 m tall. You want the tower to be 20 bricks high, and we want to calculate how much energy is required to build it. The physics fact that you need is this: the energy, E (in Joules) required to lift a mass m (in kg) a height h (in m) is E = mgh (where g is the acceleration due to gravity - for this problem, you can take g to be 10 m/s2.) 1. We will assume that no energy is required to place the first brick in the tower, since it is already on the ground. What about the second brick? How high must if be lifted to be placed on top of the first brick? How much energy does that require? What about the third brick? The tenth brick?arrow_forwardThe solar power per unit area at the Earth's distance from the sun--called the "solar constant"--is 1.36 kW/m^2. If a solar power station in a sunny location uses 20%-efficient solar panels, what area of panels is required to replace a 1.0 GW power plant at noon. Express the answer in square kilometers. 3676arrow_forward
- A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby has a mass of 1.5 kg. The carriage has _____ Joules of energy. PLEASE USE COMMAS IN YOUR ANSWERS IF NEEDED! The formula for potential energy is: PE = mgh v = velocity or speed in m/s m = mass in kg g = 10m/s (this is really 9.8 m/s on earth but we will use 10 for simplicity) h = height in metersarrow_forwardIn one of the videos I said that a typical American household uses energy at a rate of about 10,000 joules per second. A shorthand unit for this would be "10 kilowatts". Using energy at this rate costs about $1.50 per hour (this is not quite right, as it assumes that all the energy is electrical energy, which is relatively cheap, but let's go with this for an estimate). How much does this energy usage cost for a year?arrow_forwardA baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby has a mass of 1.5 kg. The carriage has Joules of energy. PLEASE USE COMMAS IN YOUR ANSWERS IF NEEDED! The formula for potential energy is: PE = mgh v = velocity or speed in m/s m = mass in kg g=10m/s (this is really 9.8 m/s on earth but we will use 10 for simplicity) h = height in metersarrow_forward
- During the extinction of the dinosaurs, a meteor with a mass of about 1.4 x10^8 kg hit the ground at a speed of 12km/s. How much energy did the meteor deliver to the ground? (round your answer to 3 significant figures) A. 2.02 x 10^10 Joules B. 1.01 X 10^10 Joules C. 1.01 X 10^16 Joules D. 2.02 x 10^16 Joulesarrow_forwardThe total consumption of electrical energy in the United States is about 1.0 1019 joules per year. What is the average rate of electrical energy consumption in watts? If the population of the United States is 300 million, what is the average rate of electrical energy consumption per person? The sun transfers energy to the earth by radiation at a rate of approximately 1.0 kW per square meter of surface. If this energy could be collected and converted to electrical energy with 40 % efficiency, how great an area (in square kilometers) would be required to collect the electrical energy used by the United States?arrow_forwardA new coal-burning power plant can generate 1:5 gigawatts (billion watts) of power. Burning 1 kilogram of coal yields about 449 kilowatt-hours of energy. Complete parts (a), (b), and (c) below. a. How much energy, in kilowatt-hours, can the plant generate each month? million kilowatt-hours of energy each month. The plant can generate (Type an integer.)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Components of a Vector (Part 1) | Unit Vectors | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=fwMUELxZ0Pw;License: Standard YouTube License, CC-BY
02 - Learn Unit Conversions, Metric System & Scientific Notation in Chemistry & Physics; Author: Math and Science;https://www.youtube.com/watch?v=W_SMypXo7tc;License: Standard Youtube License