College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 18, Problem 55GP
* In a hot water heater, water warms when electric potential energy is converted into thermal energy. (a) Determine the energy needed to warm 180 kg of water by
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Two parallel metal plates with an area of 1m^2 are filled with materials with different conductivity as given in figure
a) Obtain effective retention of two metal plates.
b) If the potential difference of 10 mV (ground connection to the bottom plate) is maintained between the metal plates, Find E and J from each area.
c) Obtain the power dissipation in each area.
An iPhone battery stores 6.55 Wh of energy. How many iPhones could be charged in
one day by a small solar panel of dimensions 0.54 m X 0.35 m. Assume that this panel
has an efficiency of 18% and is in Gainesville where we get 5.47 kWh/m2/lday. Roundoff
the number to zero decimals.
54
36
A nerve cell is shaped like a cylinder. The membrane wall of the cylinder has a +0.07-V potential difference from the inside to the outside of the wall. To help maintain this potential difference, sodium ions are pumped from inside the cell to the outside. For a typical cell, 10^9 ions are pumped each second.
a. Determine the change in chemical energy each second required to produce this increase in electric potential energy.
b. If there are roughly 7×10^11 of these cells in the body, how much chemical energy is used in pumping sodium ions each second?
c. Estimate the fraction of a person's metabolic rate used to pump these ions. Assume the metabolic rate to be 100 W.
Chapter 18 Solutions
College Physics
Ch. 18 - Review Question 18.1 How do you estimate the...Ch. 18 - Review Question 18.2 You have a point-like object...Ch. 18 - Review Question 18.3 Compare the work needed to...Ch. 18 - Review Question 18.4 Imagine that you have an...Ch. 18 - Review Question 18.5 In this section you read that...Ch. 18 - Review Question 18.6 What are the differences...Ch. 18 - Review Question 18.7 A parallel plate capacitor...Ch. 18 - Review Question 18.8 Why do heart contractions...Ch. 18 - 1 What does the field at point A, which is a...Ch. 18 - Why can you shield an object from an external...
Ch. 18 - If you place a block made of a conducting material...Ch. 18 - 4. If you place a block made of a dielectric...Ch. 18 - 5. Two identical positive charges are located at a...Ch. 18 - An electric dipole is placed between the...Ch. 18 - 7. A positive charge is fixed at some distance d...Ch. 18 - Figure Q18.8 shows E field lines in a region of...Ch. 18 - How do we use the model of the electric field to...Ch. 18 - Describe a procedure to determine the E field at...Ch. 18 - What does it mean if the E field at a certain...Ch. 18 - A very small positive charge is placed at one...Ch. 18 - 13. How do we create an E field with parallel...Ch. 18 - 14. Draw a sketch of the field lines caused by...Ch. 18 - 15. Draw a sketch of the field lines caused by...Ch. 18 - 16. Jim thinks that E field lines are the paths...Ch. 18 - Can E field lines cross? Explain why or why not.Ch. 18 - An electron moving horizontally from left to right...Ch. 18 - 19. (a) What does it mean if the electric...Ch. 18 - 20. Explain how grounding works.
Ch. 18 - 21. Explain how shielding works.
Ch. 18 - 22. Explain the difference between the microscopic...Ch. 18 - Explain why, for charged objects submerged in a...Ch. 18 - 24. What does it mean if the dielectric constant k...Ch. 18 - What is the dielectric constant of a metal?Ch. 18 - Describe the relation between the quantities E...Ch. 18 - If the V field in a region is constant, what is...Ch. 18 - 28. Why are uncharged pieces of a dielectric...Ch. 18 - 29. Draw equipotential surfaces and label them in...Ch. 18 - Show a charge arrangement and a point in space...Ch. 18 - 31. Explain what happens when you place a...Ch. 18 - (a) Explain what happens when you place a...Ch. 18 - 33. Explain why the excess charge on an electrical...Ch. 18 - Draw a microscopic representation of the charge...Ch. 18 - 1. * (a) Construct a graph of the magnitude of the...Ch. 18 - * A uranium nucleus has 92 protons. (a) Determine...Ch. 18 - 3. The electron and the proton in a hydrogen atom...Ch. 18 - * Use the superposition principle to draw E field...Ch. 18 - 5. * Use the superposition principle to draw ...Ch. 18 - * E field lines for a field created by an...Ch. 18 - 7. * Two objects with charges C are 50 cm from...Ch. 18 - 8. * charged object is 6.0 cm along a horizontal...Ch. 18 - 9. ** charged object is 4.0 cm along a horizontal...Ch. 18 - 10. **A distance d separates two objects, each...Ch. 18 - 11. * A point-like charged object with a charge +...Ch. 18 - 12. * A 3.0-g aluminum foil ball with a charge of ...Ch. 18 - 13. ** (a) If the string in the previous problem...Ch. 18 - * EST Using Earths E field for flight Earth has an...Ch. 18 - * An electron moving with a speed v0 enters a...Ch. 18 - 10-9 C hangs freely from a 1.0-m-long thread. What...Ch. 18 - 17. A 0.50-g oil droplet with charge is in a...Ch. 18 - 19. * Equation Jeopardy 1 The equations below...Ch. 18 - * Equation Jeopardy 2 The equations below describe...Ch. 18 - 21. During a lightning flash. of charge moves...Ch. 18 - 22. * (a) Construct a graph of the V field created...Ch. 18 - * A horizontal distance d separates two objects...Ch. 18 - * Two objects with charges qand+q are separated by...Ch. 18 - * Four objects with the same charge q are placed...Ch. 18 - 26. Spark jumps to nose An electric spark jumps...Ch. 18 - 27. * Two charged point-like objects are...Ch. 18 - BIO Electric field in body cell The electric...Ch. 18 - * Equation Jeopardy 3 The equation below describes...Ch. 18 - 31. * Equation Jeopardy 4 The equation below...Ch. 18 - 32. * While a sphere with positive charge remains...Ch. 18 - 33. * Figure P18.33 shows field lines in a region...Ch. 18 - 34. * A metal sphere has no charge on it. A...Ch. 18 - 35. ** EST A Van de Graaff generator of radius...Ch. 18 - ** A metal ball of radius R1 has a charge Q. Later...Ch. 18 - 37. * Positively charged metal sphere A is placed...Ch. 18 - *Two small metal spheres A and B have different...Ch. 18 - 39. * An electric dipole such as a water molecule...Ch. 18 - 10-7C at its head and an equal magnitude negative...Ch. 18 - 41. BIO Body cell membrane electric field (a)...Ch. 18 - 42. ** Earth's electric field Earth has an...Ch. 18 - 43. You have a parallel plate capacitor. (a)...Ch. 18 - 44. * A capacitor of capacitance C with a vacuum...Ch. 18 - 45. * A capacitor of capacitance C with a vacuum...Ch. 18 - How does the capacitance of a parallel plate...Ch. 18 - BIO EST Axon capacitance The long thin cylindrical...Ch. 18 - 48. ** Sphere capacitance A metal sphere of radius...Ch. 18 - * BIO EST Capacitance of red blood cell Assume...Ch. 18 - BIO Defibrillator During ventricular fibrillation...Ch. 18 - * EST The dielectric strength of air is 3106V/m....Ch. 18 - * Charged cloud causes electric field on Earth The...Ch. 18 - *BIO Hearts dipole charge The heart has a dipole...Ch. 18 - 55. * In a hot water heater, water warms when...Ch. 18 - 56. ** EST Lightning warms water A lightning flash...Ch. 18 - 57 * Four charged particles A, B, C, and D are...Ch. 18 - 59. ** A small object of unknown mass and charge...Ch. 18 - 61. * BIO Electrophoresis Electrophoresis is used...Ch. 18 - 62. * BIO Energy stored in axon electric field An...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - BIO Electric discharge by eels In several aquatic...Ch. 18 - Electrostatic precipitator (esp) Electrostatic...Ch. 18 - Electrostatic precipitator (esp) Electrostatic...Ch. 18 - Electrostatic precipitator (esp) Electrostatic...Ch. 18 - Electrostatic precipitator (esp) Electrostatic...Ch. 18 - Electrostatic precipitator (esp) Electrostatic...
Additional Science Textbook Solutions
Find more solutions based on key concepts
26.36 The resistance of the coil of a pivoted coil galvanometer is 9.36 ?, and a current of 0.0224 A causes it...
University Physics with Modern Physics (14th Edition)
What is the period of a 1.00mlong pendulum?
College Physics
14. FIGURE Q4.14 shows four rotating wheels. For each, determine the signs (+ or -) of w and a.
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Find the terminal velocity of a spherical bacterium (diameter 2.00m ) falling in water. You will first need to ...
University Physics Volume 1
1. When is energy most evident?
Conceptual Physics (12th 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
- (a) On a particular day, it takes 9.60103 J of electrical energy to start a truck’s engine. Calculate the capacitance of a capacitor that could store that amount of energy at 12.0 V. (b) What is unreasonable about this result? (c) Which assumptions are responsible?arrow_forward(a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious bums?arrow_forwardFIGURE P26.8 A Find an expression for the electric potential energy associated with each system in Figure P26.8 in terms of the quantities provided on the figure.arrow_forward
- What would be the maximum cost of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60-W bulbs? Assume the cost of the incandescent bulb is 25 cents and that electricity costs 10 cents/kWh, Calculate the cost for 1000 hours, as in the cost effectiveness of CFL example.arrow_forwardG formula for work with integra X O (1) Electric Potential Energy ir X A lecture 06.pdf: PHYSICS 7DLI X I Course Home G charge of an alpha particle in x Search results for 'What is th i openvellum.ecollege.com/course.html?courseld=15778750&HeplD=df9e8ef8061a5cdde62f6cb931f55036#10001 E Apps what Gmail YouTube Maps Dashboard O My Coursesarrow_forwardx Inbox (459)-s2251959@nct.ed x Dashboard 71 x interity mail.google.com/mail//0/inboxprogector A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1800 W for ten hours each day (i1) Two Electric Freezer of rating 500W each for 24 hours each day (ili) Ten electric tube lights of rating 30W each for 12 hours each day. Calculate the electricity bill of the vegetable shop for the month of Novenber 2020 If the cost per unit of electric energy is 25 Bz/ kWh. ) Electrical Energy(in kWh) consumed by two Air conditioners of rating 1800 W for 10h of each day= (1) Electrical Energy(in kWh) consumed by two Electric Freezer of rating 500 W for 24 h of each day= (i) Electrical Energy(in kWh) consumed by ten Tube light of rating 30 W for 12 h of each day = (iv) Total energy(in kWh) consumed in the month November'2020 = (v) Electricity bill(in riyals) for the month of November'2020 = Page 2 / 2 - Q +arrow_forwardA 2.0-cm-diameter parallel-plate capacitor with a spacing of 0.50 mm is charged to 200 V.arrow_forwardA car battery does 400 J of work on the charge passing through it as it starts an engine. Part A If the emf of the battery is 12 V, how much charge passes through the battery during the start? Express your answer using two significant figures. |-| ΑΣΦΑ AQ= Submit ▾ Part B O increase decrease Submit Request Answer If the emf is doubled to 24 V, does the amount of charge passing through the battery increase r decrease? Part C ✓ Correct 3 Previous Answers Submit By what factor? Express your answer using two significant figures. O decrease by a factor of √2 O decrease by a factor of 2 O decrease by a factor of 2√/2 O decrease by a factor of 4 O decrease by a factor of 8 ? Request Answer Carrow_forwardV=J/C. A negatively charged particle (q= - 2 C) moves through a 2000 V loss of electric potential. Will there be a loss or a gain in electric potential and kinetic energy? A. Electrical potential energy is increased, while Kinetic Energy is decreasedB. Both Electrical potential energy and Kinetic energy are decreasedC. Electrical potential energy is decreased, while Kinetic Energy is increasedD. Both electrical potential energy and kinetic energy are increasedarrow_forward+50 V O V -50 V An electron is released from rest at the dot shown above. Afterward, the electron moves downward with an increasing speed. b. moves upward with an increasing speed. C. moves upward with a constant speed. U d. moves downward with a constant speed.arrow_forwardA 2 kg toy car can drive at a constant speed of 20 km/hr, please: a. Calculate the kinetic energy at this speed.b. Assume the same kinetic energy is delivered by a 12 V battery and the electrical resistance of the toy car is 2 Ω, what is the corresponding electrical current?Hint: equations to use (1) P= E/t, (2) P=VI, (3) V=IRarrow_forward1. The Atmos clock(the so-called perpetual motion clock) gets its name from the fact that it runs off pressure vacations in the atmosphere, which drive a belows containing a mixture of gas and liquid ethyl chloride. Because the power to drive these clocks is so limited, they must be very efficient. In fact, a single 60.0 W lightbulb could power 240 million Atmos clocks simultaneously. Find the amount of energy, in joules, required to run an Atmos clock for one day. Explain and draws.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY