Concept explainers
A comet plunges into the planet Jupiter. At the instant this happens, your physics class on Earth begins; in other words, the comet collision is simultaneous with your class beginning. A friend traveling from Earth toward Jupiter in a high-speed spaceship would say that (a) the comet collision occurs before your class begins; (b) the comet collision occurs after your class begins; (c) the comet collision and the beginning of your class are simultaneous.
Want to see the full answer?
Check out a sample textbook solutionChapter 33 Solutions
Mastering Physics with Pearson eText -- Standalone Access Card -- for Essential University Physics (3rd Edition)
Additional Science Textbook Solutions
Applied Physics (11th Edition)
Physics for Scientists and Engineers with Modern Physics
The Cosmic Perspective (8th Edition)
The Cosmic Perspective Fundamentals (2nd Edition)
An Introduction to Thermal Physics
Conceptual Physical Science (6th Edition)
- A rocket drifts sideways in outer space from point "a" to point "b" as shown below. The rocket is subject to no outside forces. Starting at position "b", the rocket's engine is turned on and produces a constant thrust (force on the rocket) at right angles to the line "ab". The constant thrust is maintained until the rocket reaches a point "c" in space. At point "c" the rocket's engine is turned off and the thrust immediately drops to zero. Which of the paths below will the rocket follow beyond point "c"?arrow_forwardRank the following three collisions in terms of the extent of damage that the car would experience. Explain your reasons for ranking the collisions as you did. (a) A car going 10 m/s striking an identical car that was stationary on level ground. (b) A car going 10 m/s running into an immovable concrete wall. (c) A head-on collision between identical cars, boom going 10 m/s.arrow_forwardFind the center of mass of a one-meter long rod, made of 50 cm of iron (density 8gcm3 ) and 50 cm of aluminum (density 2.7gcm3 ).arrow_forward
- A single-stage rocket of mass 308 metric tons (not including fuel) carries a payload of 3150 kg to low-Earth orbit. The exhaust speed of the rockets cryogenic propellant is 3.20 103 m/s. a. If the speed of the rocket as it enters orbit is 8.00 km/s, what is the mass of propellant used during the rockets burn? b. The rocket is redesigned to boost its exhaust speed by a factor of two. What is the mass of propellant used in the redesigned rocket to carry the same payload to low-Earth orbit? c. Because the exhaust speed of the redesigned rocket is increased by a factor of two, why is the fuel consumption of the redesigned rocket not exactly half that of the original rocket?arrow_forwardTo calculate the momentum of an object, which properties of an object do you need to know?arrow_forwardYou and another astronaut are in space. You throw a tool to them that has a mass of 15kg. Your mass is 91kg and the other astronaut's mass is 88kg. Initially you and the other astronaut are at rest. You threw the tool at a speed of 8m/s. What is your velocity after you threw the tool?arrow_forward
- You find yourself stuck in outerspace with nothing but your physics book and spacesuit. You have a mass of 108kg in your suit and your physics book has a mass of 3.7 kg. In order to make it back to your stationary spaceship before running out of air you must move at .29 m/s. How fast in m/s do you have to throw your physics book to achieve the speedarrow_forwardA rocket drifts sideways in outer space from point "a" to point "b" as shown below. The rocket is subject to no outside forces. Starting at position "b", the rocket's engine is turned on and produces a constant thrust (force on the rocket) at right angles to the line "ab". The constant thrust is maintained until the rocket reaches a point "c" in space. 1) At point "c" the rocket's engine is turned off and the thrust immediately drops to zero. Which of the paths below will the rocket follow beyond point "c"? A B C D E 2) Beyond position "c" the speed of the rocket is: constant continuously increasing. continuously decreasing. increasing for a while and constant thereafter. constant for a while and decreasing thereafter.arrow_forwardNext up on this adventure, shooting bullets into conveniently shaped pendulum systems to have a setup for a ballistic pendulum. In this case, a projectile, (m = 0.50kg) is fired into a large block of wood of mass (m = 20 kg) suspended like a pendulum. As a result of this inelastic collision, the pendulum and projectile together swing up to a height of 10m. What was the initial speed of the bullet? Group of answer choicesarrow_forward
- Choose the BEST answer to the following: Compared with the Newtonian momentum p = mv, the momentum of an object traveling at great speed is (a) greater. (b) less. (c) the same. (d) dependent on rest mass.arrow_forwardA spaceship of mass M = 1.30 106 kg is accelerated at a rate of 1.52 m/s2 toward a binary star, which consists of two stars of equal mass m, as shown in the figure below. Find the mass m of each star.arrow_forwardGiven a collision in which car #1 of mass 5,000 kg collided with car #2 of mass 2,500kg . If the magnitude of the force of the car #1 on car #2 = 100 N then what is the magnitude of the force of the car #2 on 1 ?arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage LearningPrinciples 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 University