Use the following questions to check your understanding of some of the many types of visual information used in astronomy. For additional practice, try the Chapter 7 Visual Quiz at Mastering Astronomy.
The plots above show the masses of the eight major planets on the vertical axis and their radial on the horizontal axis. The plot on the left shows the information on a linear scale, meaning that each tick mark indicates an increase by the same amount. The plot on the right shows the same information plotted on an exponential scale, meaning that each tick mark represents another actor-of-ten increase. Before proceeding, convince yourself that the points on each plot are the same.
3. Which statements most accurately describes the relationship between the largest and smallest planets?
a. The largest planet is 6000 times as wide (in diameter) and 30 times as massive as the smallest.
b. The largest planet is 6000 times as wide (in diameter) and 6000 times as massive as the smallest.
c. The largest planet is 30 times as wide (in diameter) and 30 times as massive as the smallest.
d. The largest planet is 30 times as wide (in diameter) and 6000 times as massive as the smallest.

Want to see the full answer?
Check out a sample textbook solution
Chapter 7 Solutions
MODIFIED MAST ASTRONOMY:COSMIC PERSPECTI
- Discuss the differences between the Biot-Savart law and Coulomb’s law in terms of their applicationsand the physical quantities they describe.arrow_forwardExplain why Ampere’s law can be used to find the magnetic field inside a solenoid but not outside.arrow_forward3. An Atwood machine consists of two masses, mA and m B, which are connected by an inelastic cord of negligible mass that passes over a pulley. If the pulley has radius RO and moment of inertia I about its axle, determine the acceleration of the masses mA and m B, and compare to the situation where the moment of inertia of the pulley is ignored. Ignore friction at the axle O. Use angular momentum and torque in this solutionarrow_forward
- A 0.850-m-long metal bar is pulled to the right at a steady 5.0 m/s perpendicular to a uniform, 0.650-T magnetic field. The bar rides on parallel metal rails connected through a 25-Ω, resistor (Figure 1), so the apparatus makes a complete circuit. Ignore the resistance of the bar and the rails. Please explain how to find the direction of the induced current.arrow_forwardFor each of the actions depicted, determine the direction (right, left, or zero) of the current induced to flow through the resistor in the circuit containing the secondary coil. The coils are wrapped around a plastic core. Immediately after the switch is closed, as shown in the figure, (Figure 1) in which direction does the current flow through the resistor? If the switch is then opened, as shown in the figure, in which direction does the current flow through the resistor? I have the answers to the question, but would like to understand the logic behind the answers. Please show steps.arrow_forwardWhen violet light of wavelength 415 nm falls on a single slit, it creates a central diffraction peak that is 8.60 cm wide on a screen that is 2.80 m away. Part A How wide is the slit? ΟΙ ΑΣΦ ? D= 2.7.10-8 Submit Previous Answers Request Answer × Incorrect; Try Again; 8 attempts remaining marrow_forward
- Two complex values are z1=8 + 8i, z2=15 + 7 i. z1∗ and z2∗ are the complex conjugate values. Any complex value can be expessed in the form of a+bi=reiθ. Find θ for (z1-z∗2)/z1+z2∗. Find r and θ for (z1−z2∗)z1z2∗ Please show all stepsarrow_forwardCalculate the center of mass of the hollow cone shown below. Clearly specify the origin and the coordinate system you are using. Z r Y h Xarrow_forward12. If all three collisions in the figure below are totally inelastic, which will cause more damage? (think about which collision has a larger amount of kinetic energy dissipated/lost to the environment? I m II III A. I B. II C. III m m v brick wall ע ע 0.5v 2v 0.5m D. I and II E. II and III F. I and III G. I, II and III (all of them) 2marrow_forward
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxStars and GalaxiesPhysicsISBN:9781305120785Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning





