Physics
7th Edition
ISBN: 9780321929013
Author: Douglas C. Giancoli
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 10Q
It is said that in ancient times a rich man with a bag of gold coins was stranded on the surface of a frozen lake. Because the ice was frictionless, he could not push himself to shore and froze to death. What could he have done to save himself had he not been so miserly?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
During a spacewalk, Dmitri
finds himself floating 3 m
from his space station's
airlock. He only has one
minute of air left. He has
one detachable 10 kg
toolkit, which he can toss
to propel himself toward
safety. How fast will he
need to move to reach the
airlock before he runs out
of air?
22. During a circus performance, John Tailor was fired from
a compressed-air cannon whose barrel was 20 m long.
Mr. Tailor emerged from the cannon (twice on weekdays,
three times on Saturdays and Sundays) at 40 m/s. If Mr.
Tailor's mass was 60 kg, what was the average force on
him when he was inside the cannon's barrel?
You are participating in a fresh water fishing tournament with the goal of catching the heaviest fish. You are in the middle of the river when you finally get your catch; unfortunately, you realize that you left the spring scales in your car. All you have in the boat are the paddles, your 16 Oz coffee mug, some rope, measuring tape, and a plastic bag.
Estimate the mass of the fish (in kilograms) using these items.
Chapter 7 Solutions
Physics
Ch. 7 - A railroad car loaded with rocks coasts on a level...Ch. 7 - 2. Which answer would you choose if the rocks fall...Ch. 7 - Prob. 1QCh. 7 - Prob. 2QCh. 7 - 3. When a person jumps from a tree to the ground,...Ch. 7 - Prob. 4QCh. 7 - Prob. 5QCh. 7 - Prob. 6QCh. 7 - According to Eq. 7-4, the longer the impact time...Ch. 7 - If a falling ball were to make a perfectly elastic...
Ch. 7 - A boy stands on the back of a rowboat and dives...Ch. 7 - It is said that in ancient times a rich man with a...Ch. 7 - The speed of a tennis ball on the return of a...Ch. 7 - Is it possible for an object to receive a larger...Ch. 7 - In a collision between two cars, which would you...Ch. 7 - A very elastic “superball” is dropped from a...Ch. 7 - Prob. 15QCh. 7 - Prob. 16QCh. 7 - Prob. 17QCh. 7 - Prob. 18QCh. 7 - Prob. 19QCh. 7 - Prob. 20QCh. 7 - Prob. 21QCh. 7 - Prob. 22QCh. 7 - Prob. 23QCh. 7 - Bob and Jim decide to play tug-of-war on a...Ch. 7 - 25. In one type of nuclear radioactive decay, an...Ch. 7 - Prob. 26QCh. 7 - Prob. 27QCh. 7 - Prob. 28QCh. 7 - Prob. 1MCQCh. 7 - Prob. 2MCQCh. 7 - Prob. 3MCQCh. 7 - Prob. 4MCQCh. 7 - Prob. 5MCQCh. 7 - Prob. 6MCQCh. 7 - Prob. 7MCQCh. 7 - Prob. 8MCQCh. 7 - Prob. 9MCQCh. 7 - 10. Choose the best answer in the previous...Ch. 7 - 11. A railroad tank car contains milk and rolls at...Ch. 7 - Prob. 12MCQCh. 7 - 1. (I) What is the magnitude of the momentum of a...Ch. 7 - A constant friction force of 25 N acts on a 65-kg...Ch. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Calculate the force exerted on a rocket when the...Ch. 7 - A 7700-kg boxcar traveling 14 m/s strikes a second...Ch. 7 - A child in a boat throws a 5.30-kg package out...Ch. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - An object at rest is suddenly broken apart into...Ch. 7 - A22- bullet traveling 240 m/s penetrates a 2.0-kg...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - Prob. 15PCh. 7 - A golf ball of mass 0.045 kg is hit off the lee at...Ch. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - With what impulse does a 0.50-kg newspaper have to...Ch. 7 - Prob. 23PCh. 7 - (a) Calculate the impulse experienced when a 55-kg...Ch. 7 - A ball of mass 0.440 kg moving east (+ x...Ch. 7 - 26. (II) A 0.450-kg hockey puck, moving east with...Ch. 7 - Prob. 27PCh. 7 - Two billiard balls of equal mass undergo a...Ch. 7 - 29. (II) A 0.280-kg croquet ball makes an elastic...Ch. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Car A hits car B (initially at rest and of equal...Ch. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - An atomic nucleus of mass m traveling with speed v...Ch. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Find the center of mass of the three-mass system...Ch. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - Prob. 64PCh. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Prob. 67GPCh. 7 - Prob. 68GPCh. 7 - Prob. 69GPCh. 7 - Prob. 70GPCh. 7 - Prob. 71GPCh. 7 - Prob. 72GPCh. 7 - Prob. 73GPCh. 7 - Prob. 74GPCh. 7 - Prob. 75GPCh. 7 - Prob. 76GPCh. 7 - Prob. 77GPCh. 7 - Prob. 78GPCh. 7 - Prob. 79GPCh. 7 - Prob. 80GPCh. 7 - Astronomers estimate that a 2.0-km-diameter...Ch. 7 - Prob. 82GPCh. 7 - Prob. 83GPCh. 7 - Prob. 84GPCh. 7 - Prob. 85GPCh. 7 - 86. A novice pool player is faced with the corner...
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
- To lift off from the Moon, a 9.50 105 kg rocket needs a thrust larger than the force of gravity. If the exhaust velocity is 4.25 103 m/s, at what rate does the exhaust need to be expelled to provide sufficient thrust? The acceleration due to gravity on the Moon is 1.62 m/s2.arrow_forwardA model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.5 g, which includes fuel mass of 12.7 g. The duration of its burn is 1.90 s. (a) What is the average exhaust speed of the engine? (b) This engine is placed in a rocket body of mass 53.5 g. What is the final velocity of the rocket if it were to be fired from rest in outer space by an astronaut on a spacewalk? Assume the fuel burns at a constant rate.arrow_forwardA rocket expels 1.2 x 10^3 kg of gas each second at a speed of 5.0 x 10^4 m/s. Will the thrust produced by this rocket be sufficient to lift it off the launch pad if the force of gravity on the rocket is 5.8 x 10^7arrow_forward
- As one gets out of an automobile, he sometimes gets a “shock” when he touches the car. Why is this? Is it likely to happen during rainy days? Why?arrow_forward12: It is said that in ancient times a rich man with a bag of gold coins was stranded on the surface of a frozen lake. Because the ice was frictionless, he could not push himself to shore and froze to death. In a few sentences, what could he have done to save himself had he not been so miserly? Explain in a few sentences how your solution works.arrow_forwardOn the set of a new Hollywood movie, a 74.1-kg stunt actor (Max Payne) is tossed straight out of a helicopter hovering (stationary) at a height of 43.4 meters. The stunt actor is thrown from the helicopter at a speed of 4.17 m/s, eventually landing in the water below. Determine the stunt actor's impact speed and assume negligible air resistance. You can use the approximation that g = 10 m/s2.arrow_forward
- On the set of a new Hollywood movie, a 84.6-kg stunt actor (Max Payne) is tossed straight out of a helicopter hovering (stationary) at a height of 55.3 meters. The stunt actor is thrown from the helicopter at a speed of 4.56 m/s, eventually landing in the water below. Determine the stunt actor's impact speed and assume negligible air resistance. You can use the approximation that g = 10 m/s2. Answer: _________ m/s (round to the nearest hundredth)arrow_forwardA dog weighing 36 kg, is standing on a flatboat so that he is 23 m from shore. He walks 16 m on the boat toward shore and then halts. The boat weighs 65 kg, and one can assume there is no friction between it and the water. How far is he from shore at the end of this time?arrow_forwardA 5 kg box is sliding on a frictionless surface with a velocity of 6 m/s. It collides with a wall and comes to rest in 0.1 seconds. What is the magnitude of the average force exerted on the box by the wall?arrow_forward
- A nucleus that captures a stray neutron must bring the neutron to a stop within the diameter of the nucleus by means of the strong force. That force, which "glues" the nucleus together, is approximately zero outside the nucleus. Suppose that a stray neutron with an initial speed of 1.9 × 107 m/s is just barely captured by a nucleus with diameter d = 1.3 × 10-¹4 m. Assuming that the strong force on the neutron is constant, find the magnitude of that force. The neutron's mass is 1.67 × 10-27 kg. Number Units Narrow_forwardAfter a 70 kg person steps from a boat onto the shore, the boat moves away with a speed of 0.7 m/s with respect to the shore. If the same person steps from the shore onto the boat, the person and the boat move away from the shore with the speed of 0.5 m/s. Assume that the initial speed of the person with respect to the shore is the same in both cases and that the person is moving in a horizontal direction. (a) Draw impulse-momentum bar charts for both situations. (b) Determine the mass of the boat and the speed of the person.arrow_forwardThe parameters of instantaneous speed, altitude, net engine thrust and wind speed are given for the above 5000 kg aircraft, which accelerates and moves at a fixed altitude, while leaving a load of 150 kg. In case the air friction is neglected, calculate the distance between the load and the aircraft while falling to the ground.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 Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
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
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY