Concept explainers
Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is to shape the spaceship like a cylindrical shell that rotates, with the astronauts walking on the inside surface (Fig. 5–30). Explain how this simulates gravity. Consider (a) how objects fall, (b) the force we feel on our feet, and (c) any other aspects of gravity you can think of.
FIGURE 5–30 Question 18.
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
Additional Science Textbook Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
College Physics: A Strategic Approach (4th Edition)
Conceptual Integrated Science
Conceptual Physical Science (6th Edition)
College Physics: A Strategic Approach (3rd Edition)
- The gravitational force exerted on an astronaut on the Earths surface is 650 N directed downward. When she is in the space station in orbit around the Earth, is the gravitational force on her (a) larger, (b) exactly the same, (c) smaller, (d) nearly but not exactly zero, or (e) exactly zero?arrow_forwardHow far from the center of the Sun would the net gravitational force of Earth and the Sun on a spaceship be zero?arrow_forwardEstimate the gravitational force between two sumo wrestlers, with masses 220 kg and 240 kg, when they are embraced and their centers are 1.2 m apart.arrow_forward
- An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the floor drops away (Fig. P5.60). The coefficient of static friction between person and wall is s, and the radius of the cylinder is R. (a) Show that the maximum period of revolution necessary to keep the person from falling is T=(42Rs/g)1/2. (b) If the rate of revolution of the cylinder is made to be somewhat larger, what happens to the magnitude of each one of the forces acting on the person? What happens in the motion of the person? (c) If the rate of revolution of the cylinder is instead made to be somewhat smaller, what happens to the magnitude of each one of the forces acting on the person? What happens in the motion of the person?arrow_forwardNASA is expected to send a 2600-kg satellite 450 km above the earth’s surface. What is its radius? (b) What speed will it have (Hint: Earth’s mass is 5.97 x 1024 kg).?g)arrow_forwardA 7.9-kg rock and a 5.1 x 104 kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth. (b) Calculate the magnitude of the acceteration of each object when released. (a) Frock Fpebble" (b) drock apebblearrow_forward
- = 7.35 × 10²2 kg) 36. (II) Find the net force on the Moon (mM due to the gravitational attraction of both the Earth (mẸ = 5.98 × 1024 kg) and the Sun (ms assuming they are at right angles to each other, Fig. 5–43. = 1.99 × 10³0 kg), Мoon МЕ Earth FMS FIGURE 5-43 Problem 36. Orientation of Sun (S), Earth (E), and Moon (M) at right angles to each other (not to scale). Sunarrow_forwardTwo 3.3 kg physical science textbooks on a bookshelf are spaced 0.21 m apart.(a) What is the magnitude of the gravitational attraction between the books?arrow_forwardA science-fiction tale describes an artificial “planet" in the form of a band completely encircling a sun (Fig. 5–50). The inhabitants live on the inside surface (where it is always noon). Imagine that this sun is exactly like our own, that the distance to the band is the same as the Earth-Sun distance (to make the climate livable), and that the ring rotates quickly enough to produce an apparent gravity of g as on Earth. What will be the period of revolution, this planet's year, in Earth days? Sun FIGURE 5-50 Problem 88.arrow_forward
- angle with 1.00 m sides. Find the magnitude and direction of the resultant gravitational force on each particle. * 12 A spaceship of mass 1.0 × 106 kg is accelerated at a rate of 1.0 m/s² toward a binary star, which consists of two stars of equal mass m, as shown in Fig. 6-16. Find the mass m of each star. m M 1.0 × 106 kg x 1.5 X 1010 m 1.0 × 1010 m Fig. 6-16 I * 13 A particle of mass m is between a 1.00 × 10² kg mass and a 4.00 × 10² kg mass, which are 10.0 m apart. X a €arrow_forwardThree objects attract each other gravitationally when they are 0.25 m apart forming an equilateral triangle. Their masses are 1kg, 2kg, and 3kg. Determine the resultant force acting on the heaviest object..arrow_forwardTwo spheres A and B of mass 7.5 kg and 6.8 kg, respectively, are separated by a distance of 0.62 m. (a) Calculate the magnitude, in N, of the gravitational force A exerts on B and B exerts on A. force A exerts on B N force B exerts on A N (b) If the force between the spheres is now 4.40 × 10-9 N, how far apart are their centers, in meters? marrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University