Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9, Problem 71P
Derive Equation 9.15b.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Dynamics of Rigid bodies
Show complete and step by step solution with detailed illustrations on the given situation. Box the final answer.
On Oct 31 2015, massive asteroid TB145 nicknamed "Spooky" passed near the Earth
vicinity. The measured diameter of the asteroid: 600meters, and its speed relative to
the Sun: 30.5 km/s.
(NOTE you are not given the parameters of collision, so they become important part
of the "worst case -best case scenario.") Treat the asteroid as spherical object with
the density of between 3g/cm³ to 4g/cm³. Treat an Earth's orbit around the Sun as a
perfect circle of radius =150 x 106 km. Take one year to be 365.24days.
Find the worst case scenario for the collision of such object with the Earth and find
the Maximum energy released in the completely inelastic collision of this object with
Earth. State your answers to the nearest mega-ton of TNT. (1 megaton of TNT=
4.184 X1015J).
Your Answer:
Answer
Consider a large but thin sheet of plastic with a uniform −3.3 × 10-6 C/m2that is being held parallel to the xz-plane and passing through the origin. At some time a small glass bead with 0.14 kg and 6.5 × 10-6 C is released from rest at 0.9 m on the y-axis. What will be the acceleration of the bead immediately after being released?
Chapter 9 Solutions
Essential University Physics (3rd Edition)
Ch. 9.1 - Prob. 9.1GICh. 9.2 - A 500-g fireworks rocket is moving with velocity...Ch. 9.2 - Two skaters toss a basketball back and forth on...Ch. 9.3 - Which of the following systems has (1) zero...Ch. 9.4 - Which of the following qualifies as a collision?...Ch. 9.5 - Which of the following collisions qualify as...Ch. 9.6 - One ball is at rest on a level floor. A second...Ch. 9 - Roughly where is your center of mass when youre...Ch. 9 - Prob. 2FTDCh. 9 - Prob. 3FTD
Ch. 9 - The momentum of a system of pool balls is the same...Ch. 9 - An hourglass is inverted and placed on a scale....Ch. 9 - Why are cars designed so that their front ends...Ch. 9 - Give three everyday examples of inelastic...Ch. 9 - Is it possible to have an inelastic collision in...Ch. 9 - Prob. 9FTDCh. 9 - Why dont we need to consider external forces...Ch. 9 - How is it possible to have a collision between...Ch. 9 - A pitched baseball moves no faster than the...Ch. 9 - Two identical satellites are going in opposite...Ch. 9 - Prob. 14ECh. 9 - Two particles of equal mass m are at the vertices...Ch. 9 - Rework Example 9.1 with the origin at the center...Ch. 9 - Prob. 17ECh. 9 - Prob. 18ECh. 9 - A popcorn kernel at rest in a hot pan bursts into...Ch. 9 - A 60-kg skater, at rest on frictionless ice,...Ch. 9 - A plutonium-239 nucleus at rest decays into a...Ch. 9 - A toboggan of mass 8.6 kg is moving horizontally...Ch. 9 - A 150-g trick baseball is thrown at 60 km/h. It...Ch. 9 - An object with kinetic energy K explodes into two...Ch. 9 - Two 140-kg satellites collide at an altitude where...Ch. 9 - High-speed photos of a 220-g flea jumping...Ch. 9 - Youre working in mission control for an...Ch. 9 - In a railroad switchyard, a 56-ton freight car is...Ch. 9 - In a totally inelastic collision between two equal...Ch. 9 - Prob. 30ECh. 9 - Two identical trucks have mass 5500 kg when empty,...Ch. 9 - An alpha particle (4He) strikes a stationary gold...Ch. 9 - Playing in the street, a child accidentally tosses...Ch. 9 - A block of mass m undergoes a one-dimensional...Ch. 9 - A proton moving at 6.9 Mm/s collides elastically...Ch. 9 - A head-on, elastic collision between two particles...Ch. 9 - Find the center of mass of a pentagon with five...Ch. 9 - Wildlife biologists fire 20-g rubber bullets to...Ch. 9 - Consider a system of three equal-mass particles...Ch. 9 - Youre with 19 other people on a boat at rest in...Ch. 9 - A hemispherical bowl is at rest on a frictionless...Ch. 9 - Physicians perform needle biopsies to sample...Ch. 9 - Find the center of mass of the uniform, solid cone...Ch. 9 - A firecracker, initially at rest, explodes into...Ch. 9 - An 11,000-kg freight car rests against a spring...Ch. 9 - On an icy road, a 1200-kg car moving at 50 km/h...Ch. 9 - A 1250-kg car is moving with velocity...Ch. 9 - Masses m and 3m approach at the same speed v and...Ch. 9 - A 238U nucleus is moving in the x-direction at 5.0...Ch. 9 - A cylindrical concrete silo is 4.0 m in diameter...Ch. 9 - A 42-g firecracker is at rest at the origin when...Ch. 9 - A 60-kg astronaut floating in space simultaneously...Ch. 9 - Assuming equal-mass pieces in Exercise 24, find...Ch. 9 - A 62-kg sprinter stands on the left end of a...Ch. 9 - Youre a production engineer in a cookie factory,...Ch. 9 - Mass m, moving at speed 2v, approaches mass 4m,...Ch. 9 - Verify explicitly that kinetic energy is conserved...Ch. 9 - While standing on frictionless ice, you (mass 65.0...Ch. 9 - Youre an accident investigator at a scene where a...Ch. 9 - A fireworks rocket is launched vertically upward...Ch. 9 - Two objects moving in opposite directions with the...Ch. 9 - Explosive bolts separate a 950-kg communications...Ch. 9 - Youre working in quality control for a model...Ch. 9 - Youre investigating an accident in which a 1040-kg...Ch. 9 - A 400-mg popcorn kernel is skittering across a...Ch. 9 - Two identical objects with the same initial speed...Ch. 9 - A proton (mass 1 u) moving at 6.90 Mm/s collides...Ch. 9 - Two objects, one initially at rest, undergo a...Ch. 9 - Blocks B and C have masses 2m and m, respectively,...Ch. 9 - Derive Equation 9.15b.Ch. 9 - An object collides elastically with an equal-mass...Ch. 9 - A proton (mass 1 u) collides elastically with a...Ch. 9 - Two identical billiard balls are initially at rest...Ch. 9 - Find an expression for the impulse imparted by a...Ch. 9 - A 32-u oxygen molecule (O2) moving in the...Ch. 9 - A 114-g Frisbee is lodged on a tree branch 7.65 m...Ch. 9 - You set a small ball of mass m atop a large ball...Ch. 9 - A car moving at speed v undergoes a...Ch. 9 - A 200-g block is released from rest at a height of...Ch. 9 - A 14-kg projectile is launched at 380 m/s at a 55...Ch. 9 - During a crash test, a car moving at 50 km/h...Ch. 9 - Use numerical or graphical techniques to estimate...Ch. 9 - A block of mass m1 undergoes a one-dimensional...Ch. 9 - Two objects of unequal mass, one initially at...Ch. 9 - Prob. 86PCh. 9 - Prob. 87PCh. 9 - In a ballistic pendulum demonstration gone bad, a...Ch. 9 - An 80-kg astronaut has become detached from the...Ch. 9 - Prob. 90PCh. 9 - A thin rod extends from x = 0 to x = L. It carries...Ch. 9 - Model rocket motors are specified by giving the...Ch. 9 - A block of mass M is moving at speed r0 on a...Ch. 9 - Youre interested in the intersection of physics...Ch. 9 - Youre interested in the intersection of physics...Ch. 9 - Youre interested in the intersection of physics...Ch. 9 - Youre interested in the intersection of physics...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Warm winds called Chinooks (a Native-American term meaning snow eaters) sometimes sweep across the plains just ...
Essential University Physics: Volume 1 (3rd Edition)
When Stephanie Hewitt dips a glass rod into vegetable oil, the submerged part of the rod is invisible. What doe...
Conceptual Integrated Science
The minimum distance from the mirror to focus on our image when the near point distance is N .
Physics (5th Edition)
An ideal gas is made to undergo the cyclic process shown in Figure 1.10 (a). For each of the steps A, B, and C,...
An Introduction to Thermal Physics
Q10.19 A student is sitting on a frictionless rotating stool with her arms outstretched as she holds equal heav...
University Physics with Modern Physics (14th Edition)
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk(*) desig...
Cosmic Perspective Fundamentals
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
- Two stars each of one solar mass (= 2×1030 kg) are approaching each other for a head on collision. When they are a distance 109 km, their speeds are negligible. What is the speed with which they collide ? The radius of each star is 104 km. Assume the stars to remain undistorted until they collide. (Use the known value of G)arrow_forwardFor years, the tallest tower in the United States was the Phoenix Shot Tower in Baltimore, Maryland. The shot tower was used from 1828 to1892 to make lead shot for pistols and rifles and molded shot for cannons and other instruments of warfare. Molten lead was dropped from the top of the 82.15 m tall tower into a vat of water. During its free fall, the lead would form a perfectly spherical droplet and solidify. Determine the velocity of the droplet right before it hits the ground. (Note: acceleration = -9.81 m/s/s) (Hint: think about the direction the droplet travels when considering its displacement.) ___________m/sarrow_forwardA 12 kg space rock with velocity vector v1 = 7 i (m/s) collides with and sticks to an 22 kg space rock with velocity vector v2 = 21 j (m/s). Calculate the final speed of the pair, in m/s. (Please answer to the fourth decimal place - i.e 14.3225)arrow_forward
- A satellite is initially in a circular orbit around the earth with radius ro. This initial orbit is shown in the upper left drawing. At the position marked by x in the drawing the satellite's rocket motor is fired briefly (assume instantaneously), giving the satellite an impulse in the direction of its motion (i.e. tangentially). This impulse changes the velocity of the satellite to Avg. The impulse is such that the farthest point from the earth that the satellite will reach is 2ro. : Find the initial velocity of the circular orbit. Use m for the satellite (a) mass, M for the earth's mass, G for the gravitational constant, and vo for the velocity. (b) of the satellite? Explain your answer, perhaps by saying what is wrong with all the incorrect drawings. Which of the drawings below correctly shows the subsequent path (c) factor by which the velocity must be increased so that the farthest distance from the earth will be 2rg. Use conservation of energy and angular momentum to find A, the…arrow_forwardA firework is to be fired at an angle of θ = 75 ∘ and initial speed v = 70 m / s . A timed fuse will make the firework explode a time T after launch. What should T be so that the firework explodes at the highest point on the trajectory (the apogee) ?arrow_forwardSolve with illustration.arrow_forward
- 5. A particle of mass m is projected upward with a velocity vo at an angle a to the horizontal in the uniform gravitational field of the earth as shown in figure. Ignore air resistance and take the potential energy U(y = 0) = 0. Using the Cartesian coordinate system, answer the following questions. %3D (a) Find the Lagrangian in terms of x and y and identify cyclic coordinates. (b) Find the conjugate momenta, identify them and discuss which are conserved and why. (c) Using the Lagrange's equations, find the x- and y- components of the velocity as functions of time. (d) Find the Hamiltonian. (e) Ignoring air resistance, use Hamiltonian dynamics with the coordinates shown, to find the r- and y- components of the velocity as functions of time. parabola Voarrow_forwardA narrow hole is drilled through the centre of earth (mass M kg and radius R m). Now consider a particle of mass m which is inside the hole at a distance r m from the centre.arrow_forwardLet's put a circle of 10 m radius and constant density. At 5 m from the center, I make a hole of 3 m radius. Where will be the center of mass of this system? I put this disk vertically on a horizontal table, but the hole at the bottom. What happens? Nature always goes to the state of minimum energy....!arrow_forward
- The correct final answer is 2.87E-6. Please show how it became like that. A bullet of mass m=0.500 [g] is fired horizontally with a speed v=10.0 [m/s] into the bob of a ballistic pendulum of mass mP=0.500 [g]. Find the maximum height ℎ attained by the bob if the bullet passes through the bob and emerges with speed v/4.arrow_forward(a) As shown three points in the operation of the ballistic pendulum (and shown in 9.10b). The projectile approaches the pendulum in 9.36a. 9.36b shows the situation just after the projectile is captured in the pendulum. In 9.36c, the pendulum arm has swung upward and come to rest momentarily at a height h above its initial position. Prove that the ratio of the kinetic energy of the projectile–pendulum system immediately after the collision to the kinetic energy immediately before is m1/(m1 + m2). (b) What is the ratio of the momentum of the system immediately after the collision to the momentum immediately before? (c) A student believes that such a large decrease in mechanical energy must be accompanied by at least a small decrease in momentum. How would you convince this student of the truth?arrow_forwardSolve this question, only typingarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Gravitational Force (Physics Animation); Author: EarthPen;https://www.youtube.com/watch?v=pxp1Z91S5uQ;License: Standard YouTube License, CC-BY