The number of stars in our solar system.
Answer to Problem 1CC
Solution:
There is only one star in our solar system that is called the Sun.
Explanation of Solution
Introduction:
Our solar system consists of a Sun, planets (like the Earth, Mars, and Jupiter), smaller objects like satellites (moons), asteroids, comets, trans-Neptunian objects, and a huge amount of dust.
Explanation:
Earth’s Solar system has eight planets and a Sun along with a variety of smaller celestial objects like the Moon, which is the only natural satellite of the Earth. It also consists of asteroid belts holding a huge number of asteroids and loads of dust, comets, etc. A star is the heart of a solar system and in our solar system, it is the Sun. The second closest star to Earth is the Proxima Centauri, but that is outside our Solar system.
Conclusion:
Thus, the Sun is the only star present in our solar system.
Want to see more full solutions like this?
Chapter 7 Solutions
Universe
- According to our best astronomy, the observable universe is about 91 billion light years in diameter. What is the diameter of the observable universe in gigametres?arrow_forwardA scientist has evidence that a newly discovered planet has a mass of 7.0\times 10^(24) kilograms and a volume of 3.5\times 10^(12) cubic kilometers. What is the planet's density?arrow_forwardA student made an Arrhenius graph of Ln(k1/k2) versus 1/T (K-1). However she erroneously plotted 1/T on the Y axis instead of plotting 1/T on the X axis. She displayed the linear trendline to her graph in Excel. The equation of the trendline was Y = -0.000084*X - 0.047. What was the value of the slope had she plotted the data correctly?arrow_forward
- A small light source located 1 mm in front of a 1-m2m2 opening illuminates a wall behind. If the wall is 1 mm behind the opening (2 mm from the light source), the illuminated area covers 4 m2m2. How many square meters are illuminated if the wall is 3 mm from the light source? 5 mm? 10 mm?arrow_forwardThe Earth is about 12,000 km in diameter. It is therefore how many orders of magnitude wider than you are tall? (i.e., the Earth’s diameter is how many times larger than your height (give an order-of-magnitude estimate)?)arrow_forwardAn isotope of a radioactive element has half-life equal to 5 thousand years. Imagine a sample that is so old that most of its radioactive atoms have decayed, leaving just 20 percent of the initial quantity of the isotope remaining. How old is the sample? Give your answer in thousands of years, correct to one decimal place. Age : ___ thousand years.arrow_forward
- Compare the following lengths using density calculations. Gold has a density of about 19.3 g/cm3. You are now given a cubed piece of gold that has a mass of 19.3 g in the form of a cube is 1 cm long on each side. If we now double the mass of gold to 38, 6 g then what would be the length of the sides of a cube that has twice this mass of gold?arrow_forwardThe distance light travels in one second(one light-second) is about 1.86×10⁵ mi. Saturn is about 475 light-seconds from the sun. About how many miles from the sun is Saturn?arrow_forwardA trip around the edge of Australia is approximately 15,100km. If I drive at 40 miles per hour, how many days will it take for me to make this trip?arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON