Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780137443000
Author: Eugenia Etkina, Gorazd Planinsic
Publisher: PEARSON+
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Helmholtz Free Energy
The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.
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Chapter 6, Problem 31P
To determine

The state of the cart, that is, whether it remains stationary or starts moving when a ball falls vertically on the incline, which is at rest. The ball is covered with the hook side of the Velcro and the incline, with the loop side of the Velcro, due to which, the ball sticks to the incline. Also, represent the process with impulse-momentum bar charts.

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Three point-like charges are placed at the corners of a square as shown in the figure, 28.0 cm on each side. Find the minimum amount of work required by an external force to move the charge q1 to infinity. Let q1=-2.10 μC, q2=+2.40 μС, q3=+3.60 μC.

Chapter 6 Solutions

Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)

Ch. 6 - Review Question 6.1 When you burn a log in a fire...Ch. 6 - Review Question 6.2 Ryan says, “Based on the...Ch. 6 - Review Question 6.3 An apple is falling from a...Ch. 6 - Review Question 6.4 If in solving the problem in...Ch. 6 - Review Question 6.5 As the bullet enters the block...Ch. 6 - Review Question 6.6 The following equation is a...Ch. 6 - Review Question 6.7 Object A, moving in the...Ch. 6 - The gravitational force that Earth exerts on an...Ch. 6 - A bullet fired at a door makes a hole in the door...Ch. 6 - How would you convince somebody that the momentum...
Ch. 6 - 4. A wagon full of medicine balls is rolling along...Ch. 6 - 5. When can you apply the idea that momentum is...Ch. 6 - 6. Choose an example in which the momentum of a...Ch. 6 - Figure Q6.7 shows the velocity-versus-time graphs...Ch. 6 - Which is a safer car bumper in a collision: one...Ch. 6 - 9. Why does an inflated balloon shoot across a...Ch. 6 - In which situation does the momentum of a tennis...Ch. 6 - 11. A toy car with very low friction wheels and...Ch. 6 - You hold a clay ball above a scale and then drop...Ch. 6 - 13. You hold a rubber ball above a scale and then...Ch. 6 - 14 Two battery-powered fan carts are resting on a...Ch. 6 - 15. According to a report on traumatic brain...Ch. 6 - 16. Jim says that momentum is not a conserved...Ch. 6 - Say five important things about momentum (for...Ch. 6 - Three people are observing the same car. One...Ch. 6 - When would a ball hitting a wall have a greater...Ch. 6 - 20. In the previous question, in which case does...Ch. 6 - 21. Explain the difference between the concepts of...Ch. 6 - Why do you believe that momentum is a conserved...Ch. 6 - A heavy bar falls straight down onto the bed of a...Ch. 6 - Construct impulse-momentum bar charts to represent...Ch. 6 - A person moving on Rollerblades throws a medicine...Ch. 6 - A small ball of mass m rolls at a constant speed v...Ch. 6 - 1. You and a friend are playing tennis. (a) What...Ch. 6 - 2. You are hitting a tennis ball against a wall....Ch. 6 - A ball of mass m and speed v travels horizontally,...Ch. 6 - Figure P6.4 shows the velocity-versus-time graph...Ch. 6 - 5. A 1300-kg car is traveling at a speed of 10 m/s...Ch. 6 - * The rules of tennis specify that the 0.057-kg...Ch. 6 - * A cart of mass m moving right at speed v with...Ch. 6 - 8. * A cart of mass m moving right collides with...Ch. 6 - ESTEstimate your momentum when you are walking at...Ch. 6 - 10. A 100-g apple is falling from a tree. What is...Ch. 6 - * The same 100-g apple is falling from the tree....Ch. 6 - 12. Why does Earth exert the same impulse during...Ch. 6 - 13. * Van hits concrete support In a crash test, a...Ch. 6 - BIO Force exerted by heart on blood About 80 g of...Ch. 6 - 15. The train tracks on which a train travels...Ch. 6 - 16. ** EST Your friend is catching a falling...Ch. 6 - 17 BIO Traumatic brain injury According to a...Ch. 6 - * A 65-kg astronaut pushes against the inside back...Ch. 6 - 19. * You decide to use your garden hose to wash...Ch. 6 - 20. * An egg rolls off a kitchen counter and...Ch. 6 - 21. ** Proportional reasoning During a collision...Ch. 6 - (a) What force is required to stop a 1500-kg car...Ch. 6 - 23. ** EST You drop a 78-g ball vertically onto a...Ch. 6 - * Air bag force on head The graph in Figure P6.24...Ch. 6 - 25. * Equation Jeopardy 1 Invent a problem for...Ch. 6 - * Equation Jeopardy 2 Invent a problem for which...Ch. 6 - * Two carts (100 g and 150 g) on an air track are...Ch. 6 - * A tennis ball of mass m hits a wall at speed v...Ch. 6 - 29. * A tennis ball traveling at a speed of v...Ch. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - * You hold a beach ball above your head and then...Ch. 6 - 33. * A basketball player drops a 0.60-kg...Ch. 6 - * Bar chart Jeopardy Invent a problem for each of...Ch. 6 - * A baseball bat contacts a 0.145-kg baseball for...Ch. 6 - A cannon mounted on the back of a ship fires a...Ch. 6 - A 10-kg sled carrying a 30-kg child glides on a...Ch. 6 - 38. A 10,000-kg coal car on the Great Northern...Ch. 6 - * Avoiding chest injury A person in a car during a...Ch. 6 - * Bruising apples An apple bruises if a force...Ch. 6 - * Fast tennis serve The fastest server in womens...Ch. 6 - 42. * You are in an elevator whose cable has just...Ch. 6 - ** You jump from the window of a burning hotel and...Ch. 6 - * After a 70-kg person steps from a boat onto the...Ch. 6 - 45. * BIO Leg injuries during car collisions...Ch. 6 - 46. * BIO Bone fracture The zygomatic bone in the...Ch. 6 - 47. ** You are investigating a newly discovered...Ch. 6 - 48. * An impulse of stops your head during a car...Ch. 6 - A cart is moving on a horizontal track when a...Ch. 6 - 50. * A cart is moving on a horizontal track. A...Ch. 6 - 51. Your friend shoots an 80-g arrow through a...Ch. 6 - 52. * BIO EST Cuttlefish use jet propulsion to...Ch. 6 - * BIO Potassium decay in body tissue Certain...Ch. 6 - 54. Drifting space mechanic An astronaut with a...Ch. 6 - Prob. 55PCh. 6 - 56. Rocket stages A 5000-kg rocket ejects a...Ch. 6 - 57. * A rocket has just ejected fuel. With the...Ch. 6 - 58. * Car collision A 1180-kg car traveling south...Ch. 6 - 59. * Ice skaters collide While ice skating, you...Ch. 6 - 1015-kg meteorite traveling at about 10 km/s...Ch. 6 - 61. * Three friends play beach volleyball. The...Ch. 6 - 62. ** Two forces exert impulses on a hockey puck,...Ch. 6 - 64. * A cart of mass m traveling in the negative...Ch. 6 - 65. ** Two cars of unequal mass moving at the same...Ch. 6 - 66. ** Restraining force during collision A...Ch. 6 - * EST A carpenter hammers a nail using a 0.80-kg...Ch. 6 - 68. ** A 0.020-kg bullet traveling at a speed of...Ch. 6 - 69. * Two identical lightweight arms are mounted...Ch. 6 - * In a first experiment, a 30-g clay ball is shot...Ch. 6 - 71. ** EST A record rainstorm produced 304.8 mm...Ch. 6 - 72. * While dangling a hairdryer by its cord, as...Ch. 6 - 73. ** While dangling a hairdryer by its cord, as...Ch. 6 - Prob. 74GPCh. 6 - 75. * A 2045-kg sports utility vehicle hits the...Ch. 6 - 76. ** A car of mass m1 traveling north at a speed...Ch. 6 - ** You have two carts, a force probe connected to...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - BIO Heartbeat detector A prisoner tries to escape...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...Ch. 6 - Space Shuttle launch The mass of the Space Shuttle...
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