EP PHYSICS F/SCI.+ENGR.W/MOD..-MOD MAST
4th Edition
ISBN: 9780133899634
Author: GIANCOLI
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 9, Problem 31P
(II) (a) A molecule of mass m and speed v strikes a wall at right angles and rebounds back with the same speed. If the collision time is
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 5 kg block moving along a frictionless surface at 2 m/s to the right collides with a 10 kg block moving to the left at 5 m/s. Determine their velocities after collision if a) they stick together after collision; b) the collision is elastic; and c) the collision is inelastic wherein the coefficient of restitution is 0.8. How much kinetic energy is lost in this particular collision?
A molecule with a speed of 300 m s-1 hits the wall of the container at an angle 40∘ with the normal and rebounds with the same speed. During the collision is the momentum conserved? Is it an elastic or an inelastic collision?
A 1kg ball moving at a velocity of 12 m/s collides head on with a 2 kg ball moving at 24m/s in the opposite direction. calculate the velocity of each ball after collision if (a) e= 2/3, (b) the balls stick together, and (c) the collision is perfectly elastic.
Chapter 9 Solutions
EP PHYSICS F/SCI.+ENGR.W/MOD..-MOD MAST
Ch. 9.1 - Light carries momentum, so if a light beam strikes...Ch. 9.1 - Prob. 1BECh. 9.2 - A 50-kg child runs off a dock at 2.0 m/s...Ch. 9.2 - In Example 93, what result would you get if (a)...Ch. 9.2 - Return to the Chapter-Opening Questions, page 214,...Ch. 9.8 - Calculate the CM of the three people in Example...Ch. 9.8 - Prob. 1GECh. 9.9 - A woman stands up in a rowboat and walks from one...Ch. 9 - We claim that momentum is conserved. Yet most...Ch. 9 - Two blocks of mass m1, and m2 rest on a...
Ch. 9 - A light object and a heavy object have the same...Ch. 9 - When a person jumps from a tree to the ground,...Ch. 9 - Explain, on the basis of conservation of momentum,...Ch. 9 - Two children float motionlessly in a space...Ch. 9 - A truck going 15 km/h has a head-on collision with...Ch. 9 - If a falling ball were to make a perfectly elastic...Ch. 9 - Prob. 9QCh. 9 - It is said that in ancient times a rich man with a...Ch. 9 - The speed of a tennis ball on the return of a...Ch. 9 - Is it possible for an object to receive a larger...Ch. 9 - How could a force give zero impulse over a nonzero...Ch. 9 - In a collision between two cars, which would you...Ch. 9 - A superball is dropped from a height h onto a hard...Ch. 9 - Prob. 16QCh. 9 - At a hydroelectric power plant, water is directed...Ch. 9 - A squash hall hits a wall at a 45 angle as shown...Ch. 9 - Why can a batter hit a pitched baseball farther...Ch. 9 - Describe a collision in which all kinetic energy...Ch. 9 - Inelastic and elastic collisions are similar in...Ch. 9 - If a 20-passenger plane is not full, sometimes...Ch. 9 - Prob. 23QCh. 9 - Why is the CM of a 1-m length of pipe at its...Ch. 9 - Show on a diagram how your CM shifts when you move...Ch. 9 - Describe an analytic way of determining the CM of...Ch. 9 - Place yourself facing the edge of an open door....Ch. 9 - If only an external force can change the momentum...Ch. 9 - A rocket following a parabolic path through the...Ch. 9 - How can a rocket change direction when it is far...Ch. 9 - In observations of nuclear -decay, the electron...Ch. 9 - Bob and Jim decide to play tug-of-war on a...Ch. 9 - At a carnival game you try to knock over a heavy...Ch. 9 - (I) Calculate the force exerted on a rocket when...Ch. 9 - (I) A constant friction force of 25 N acts on a...Ch. 9 - (II) The momentum of a particle, in SI units, is...Ch. 9 - (II) The force on a panicle of mass m is given by...Ch. 9 - (II) A 145-g baseball, moving along the x axis...Ch. 9 - (II) A 0.145-kg baseball pitched horizontally at...Ch. 9 - (II) A rocket of total mass 3180 kg is traveling...Ch. 9 - (III) Air in a 120-km/h wind strikes head-on the...Ch. 9 - (I) A 7700-kg boxcar traveling 18 m/s strikes a...Ch. 9 - (I) A 9150-kg railroad car travels alone on a...Ch. 9 - (I) An atomic nucleus at rest decays radioactively...Ch. 9 - (I) A 130-kg tackler moving at 2.5 m/s meets...Ch. 9 - (II) A child in a boat throws a 5.70-kg package...Ch. 9 - (II) An atomic nucleus initially moving at 420 m/s...Ch. 9 - (II) An object at rest is suddenly broken apart...Ch. 9 - (II) A 22-g bullet traveling 210 m/s penetrates a...Ch. 9 - (II) A rocket of mass m traveling with speed v0...Ch. 9 - (II) The decay of a neutron into a proton, an...Ch. 9 - A mass mA = 2.0 kg, moving with velocity...Ch. 9 - (II) A 925-kg two-stage rocket is traveling at a...Ch. 9 - (III) A 224-kg projectile, fired with a speed of...Ch. 9 - (I) A 0.145-kg baseball pitched at 35.0 m/s is hit...Ch. 9 - (II) A golf ball of mass 0.045 kg is hit off the...Ch. 9 - (II) A 12-kg hammer strikes a nail at a velocity...Ch. 9 - (II) A tennis ball of mass m = 0.060 kg and speed...Ch. 9 - (II) A 130-kg astronaut (including space suit)...Ch. 9 - (II) Rain is falling at the rate of 5.0 cm/h and...Ch. 9 - (II) Suppose the force acting on a tennis hall...Ch. 9 - (II) With what impulse does a 0.50-kg newspaper...Ch. 9 - (II) The force on a bullet is given by the formula...Ch. 9 - (II) (a) A molecule of mass m and speed v strikes...Ch. 9 - (III) (a) Calclale the impulse experienced when a...Ch. 9 - (III) A scale is adjusted so that when a large,...Ch. 9 - (II) A 0.060-kg tennis ball, moving with a speed...Ch. 9 - (II) A 0.450-kg hockey puck, moving east with a...Ch. 9 - (II) A 0.280-kg croquet ball makes an elastic...Ch. 9 - (II) A hall of mass 0.220 kg that is moving with a...Ch. 9 - (II) A ball of mass m makes a head-on elastic...Ch. 9 - (II) Determine the fraction of kinetic energy lost...Ch. 9 - (II) Show that, in general, for any head-on...Ch. 9 - (III) A 3.0 kg block slides along a frictionless...Ch. 9 - (I) In a ballistic pendulum experiment, projectile...Ch. 9 - (II) (a) Derive a formula for the fraction of...Ch. 9 - (II) A 28-g rifle bullet traveling 210 m/s buries...Ch. 9 - (II) An internal explosion breaks an object,...Ch. 9 - (II) A 920-kg spoils car collides into the rear...Ch. 9 - (II) You drop a 12-g ball from a height of 1.5 m...Ch. 9 - (II) Car A hits car B (initially at rest and of...Ch. 9 - (II) A measure of inelasticity in a head-on...Ch. 9 - (II) A pendulum consists of a mass M hanging at...Ch. 9 - (II) A build of mass m = 0.0010 kg embeds itself...Ch. 9 - (II) A 144-g baseball moving 28.0 m/s strikes a...Ch. 9 - (II) A 6.0-kg object moving in the +x direction at...Ch. 9 - (II) Billiard ball A of mass mA = 0.120 kg moving...Ch. 9 - (II) A radioactive nucleus at rest decays into a...Ch. 9 - (II) Two billiard balls of equal mass move at...Ch. 9 - (II) An atomic nucleus of mass m traveling with...Ch. 9 - (II) A neutron collides elastically with a helium...Ch. 9 - (III) A neon atom (m = 20.0 u) makes a perfectly...Ch. 9 - (III) For an elastic collision between a...Ch. 9 - (III) Prove that in the elastic collision of two...Ch. 9 - (I) The CM of an empty 1250-kg car is 2.50 m...Ch. 9 - (I) The distance between a carbon atom (m = 12 u)...Ch. 9 - (II) Three cubes, of side l0,2l0, and 3l0 are...Ch. 9 - (II) A square uniform raft, 18 m by 18 m, of mass...Ch. 9 - (II) A uniform circular plate of radius 2R has a...Ch. 9 - (II) A uniform thin wire is bent into a semicircle...Ch. 9 - (II) Find the center of mass of the ammonia...Ch. 9 - (III) Determine the CM of a machine part that is a...Ch. 9 - (III) Determine the CM of a uniform pyramid that...Ch. 9 - (III) Determine the CM of a thin, uniform,...Ch. 9 - (II) Mass MA = 35 kg and mass MB = 25 kg. They...Ch. 9 - (II) The masses of the Earth and Moon are 5.98 ...Ch. 9 - (II) A mallet consists of a uniform cylindrical...Ch. 9 - (II) A 55-kg woman and a 72-kg man stand 10.0 m...Ch. 9 - (II) Suppose that in Example 918 (Fig. 932), mII =...Ch. 9 - (II) Two people, one of mass 85 kg and the other...Ch. 9 - (III) A 280-kg flatcar 25 m long is moving with a...Ch. 9 - (III) A huge balloon and its gondola, of mass M,...Ch. 9 - (II) A 3500-kg rocket is to be accelerated at 3.0...Ch. 9 - (II) Suppose the conveyor bell of Example 919 is...Ch. 9 - (II) The jet engine of an airplane takes in 120 kg...Ch. 9 - (II) A rocket traveling 1850 m/s away from the...Ch. 9 - (III) A sled filled with sand slides without...Ch. 9 - A novice pool player is faced with the corner...Ch. 9 - During a Chicago storm, winds can whip...Ch. 9 - A ball is dropped from a height of 1.50 m and...Ch. 9 - In order to convert a tough split in bowling, it...Ch. 9 - A gun fires a bullet vertically into a 1.40-kg...Ch. 9 - A hockey puck of mass 4 m has been rigged 10...Ch. 9 - For the completely inelastic collision of two...Ch. 9 - A 4800-kg open railroad car coasts along with a...Ch. 9 - Consider the railroad car of Problem 92, which is...Ch. 9 - Two blocks of mass mA and mB, resting on a...Ch. 9 - You have been hired as an expert witness in a...Ch. 9 - A meteor whose mass was about 2.0 108 kg struck...Ch. 9 - Two astronauts, one of mass 65 kg and the other 85...Ch. 9 - A 22-g bullet strikes and becomes embedded in a...Ch. 9 - Two balls, of masses mA = 45 g and mB = 65 g, are...Ch. 9 - A block of mass m = 2.20 kg slides down a 30.0...Ch. 9 - In Problem 100 (Fig. 953), what is the upper limit...Ch. 9 - After a completely inelastic collision between two...Ch. 9 - A 0.25-kg skeet (clay target) is fired at an angle...Ch. 9 - A massless spring with spring constant k is placed...Ch. 9 - The gravitational slingshot effect. Figure 955...Ch. 9 - Two bumper cars in an amusement park ride collide...Ch. 9 - In a physics lab, a cube slides down a...Ch. 9 - The space shuttle launches an 850-kg satellite by...Ch. 9 - You are the design engineer in charge of the...Ch. 9 - Astronomers estimate that a 2.0-km-wide asteroid...Ch. 9 - An astronaut of mass 210 kg including his suit and...Ch. 9 - An extrasolar planet can be detected by observing...Ch. 9 - Suppose two asteroids strike head on. Asteroid A...Ch. 9 - (III) A particle of mass mA traveling with speed...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resis...
College Physics
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
The explanation for the phenomenon of a motorcycle front wheel lift off the ground when it accelerates rapidly ...
Physics (5th Edition)
4. (II) A 1200-N crate rests on the floor. How much work is required to move it at constant speed (a) 5.0 m alo...
Physics: Principles with Applications
93. Consider a freely falling object dropped from rest. What is its acceleration at its end of 5 s? At the end ...
Conceptual Physical Science (6th Edition)
12. A 5.0 g coin is placed 15 cm from the center of a turntable. The coin has static and kinetic coefficients o...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th 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 2-kg object moving to the right with a speed of 4 m/s makes a head-on, elastic collision with a 1-kg object that is initially at rest. The velocity of the 1-kg object after the collision is (a) greater than 4 m/s, (b) less than 4 m/s, (c) equal to 4 m/s, (d) zero, or (e) impossible to say based on the information provided.arrow_forwardIn an elastic collision of two particles with masses m1 and m2, the initial velocities are u1 and u2 = u1. If the initial kinetic energies of the two particles are equal, find the conditions on u1/u2 and m1/m2 such that m1 is at rest after the collision. Examine both cases for the sign of .arrow_forwardCheck Your Understanding What is the physical difference ( or relationship) between dmdt and dmgdt in this example?arrow_forward
- A ball of mass 2 kg moving with a velocity of 8 ms collides head-on with another ball of mass of 4 kg moving with a velocity of 2 ms moving in the same direction. The collision is elastic and the coefficient restitution is e = 0.5. (a) Find the velocities of the balls after the collision. (b) Calculate the loss of kinetic energy due to collision.arrow_forwardMolecules in a spherical container make wall collisions in a great circle plane of the sphere. All paths traveled between collisions are equal in length. (a) Relate the path length Al to the angle 0 and the sphere radius r. (b) Express the component of the molecular momentum transferred to the wall in a collision in terms of the molecular mass m, the speed v, and the angle 0. (c) Using parts (a) and (b), calculate the average force exerted on the wall by one molecule. (d) Derive the relation PV = PV = } Nmv² for a spheri- cal container. This is the same relation found for a rectangular box in Section 9.5.arrow_forwardCan any real collision ever be truly perfectly elastic? Why or why not? (You should think about this in two ways: first consider what effects of the environment surrounding the collision might have on energy and momentum conservation; second, consider the objects themselves – how must an object react to a collision in order to be considered "perfect"?).arrow_forward
- (c) A 2 kg block is moving at a speed of 10 m/s and makes a perfectly elastic collision with a second block of mass M, which is initially at rest. After the collision, the 2 kg block bounces straight back at 3 m/s. (a) Determine the mass M of the second block. (b) Determine the speed of the second block after the collision.arrow_forwardTwo balls of mass 30 gram and 90 grams are supported by strings 100 cm long. The larger ball is pulled aside until its center of gravity has been raised 5 cm and then released. Assuming the collision to be perfectly elastic, find the velocity of each ball after the collision. Solution FBD and Formula Requiredarrow_forwardA 13,500 kg railroad freight car travels on a level track at a speed of 4.5ms. It collides and couples with a 25,000 kg second car, initially at rest and with brakes released. (a) What is the speed of the two cars after collision? (b) What is the impulse experienced by each car? (c) If the collision takes 3 seconds to occur, with what force did the collision occur? (d) What is the final kinetic energy of the cars?arrow_forward
- (a) If the impulse experienced during the collision is 200 Ns, use the information in the plot to calculate the peak force experienced during the collision. (b) Calculate the average force experienced during the collision.arrow_forwardYou want to estimate from how high if it is safe to jump onto a concrete floor. For this, you consider impulse and the force of impact.If you jump from a chair of height of 0.50 m, and land on a concrete floor with stiff legs, it just starts to hurt. Therefore, you consider the average force on your body in such a landing to be your ‘safe limit’. In this case, you estimate that your body moves by about 0.75 cm during the landing. If you allow yourself to bend your knees upon landing on the same concrete floor, you are able to mitigate the force of impact. You estimate that, when bending your knees during landing, your body moves by about a foot, or 0.30 m. For the purpose of this exercise, you consider yourself with a mass of 60 kg. Given the estimates made above, from how high can you safely jump onto a concrete flooarrow_forward(Figure 1)A hockey stick of mass m_s and length L is at rest on the ice (which is assumed to be frictionless). A puck with mass m_p hits the stick a distance D from the middle of the stick. Before the collision, the puck was moving with speed v_0 in a direction perpendicular to the stick, as indicated in the figure. The collision is completely inelastic, and the puck remains attached to the stick after the collision. Find the speed vf of the center of mass of the stick+puck combination after the collision. Express vf in terms of the following quantities: v0, mp, ms, and L. After the collision, the stick and puck will rotate about their combined center of mass. How far is this center of mass from the point at which the puck struck? In the figure, this distance is (D−b).arrow_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 LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
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
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Elastic and Inelastic Collisions; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M2xnGcaaAi4;License: Standard YouTube License, CC-BY