Bundle: Foundations of Astronomy, Enhanced, 13th + LMS Integrated MindTap Astronomy, 2 terms (12 months) Printed Access Card
13th Edition
ISBN: 9781337368360
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Question
Chapter 5, Problem 7DQ
To determine
The possibility of whether Einstein’s laws (postulates) might be modified or not.
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Why do scientists consider Einstein's General Theory of Relativity to be a better theory of gravity than Newton's theory of gravity?
a) Newton's theory was never useful, so it had to be replaced by something.
b) The two theories always make very different predictions, and only Einstein's theory works.
c) Einstein's gravity makes correct predictions in a few cases where Newton's theory does not.
d) Einstein's theory is newer, and scientists always prefer newer theories.
What does first kepler's law states?
Please answer these three questions. Please double check your work and make sure you're answering this 100% correct USING KEPLERS LAWS.
Chapter 5 Solutions
Bundle: Foundations of Astronomy, Enhanced, 13th + LMS Integrated MindTap Astronomy, 2 terms (12 months) Printed Access Card
Ch. 5 - According to the Aristotle, if earth and water...Ch. 5 - Today, what do we call the Aristotelean violent...Ch. 5 - Which of Keplers or Newtons laws best describes...Ch. 5 - Why would Aristotles explanation of gravity not...Ch. 5 - According to the principles of Aristotle, what...Ch. 5 - If you drop a feather and a steel hammer at the...Ch. 5 - What is the difference between mass and weight?Ch. 5 - When a person says he gained weight, does he mean...Ch. 5 - An astronaut working in space near the...Ch. 5 - What is the difference between speed and velocity?
Ch. 5 - A car is on a circular off ramp of an interstate...Ch. 5 - How many accelerators does a car have? What are...Ch. 5 - You put your astronomy textbook and your No. 2...Ch. 5 - An astronaut is in space with a baseball and a...Ch. 5 - You are at a red light in your car. The red light...Ch. 5 - You weigh 100 pounds, your friend weighs 200...Ch. 5 - Why did Newton conclude that some force had to...Ch. 5 - Why did Newton conclude that gravity has to be...Ch. 5 - Prob. 19RQCh. 5 - You are sitting next to a person who has twice as...Ch. 5 - You are sitting next to a person who has twice as...Ch. 5 - You are sitting next to a person who has twice as...Ch. 5 - How does the concept of a field explain action at...Ch. 5 - Why cant a spacecraft go beyond Earths gravity?Ch. 5 - Prob. 25RQCh. 5 - Balance a pencil lengthwise on the side of your...Ch. 5 - Prob. 27RQCh. 5 - Why cant you leave Earths gravitational field when...Ch. 5 - According to Keplers first law, planets move in...Ch. 5 - How do planets orbiting the Sun and skaters doing...Ch. 5 - If a planet were to slowly migrate inward toward...Ch. 5 - If you hold this textbook out at shoulder height...Ch. 5 - Today at the beach you see the highest of all high...Ch. 5 - Why is the period of an open orbit undefined?Ch. 5 - In what conditions do Newtons laws of motion and...Ch. 5 - Prob. 36RQCh. 5 - When you ride a fast elevator upward, you feel...Ch. 5 - Prob. 38RQCh. 5 - How is gravity related to acceleration? Are all...Ch. 5 - Near a massive planet, is gravitational...Ch. 5 - Prob. 41RQCh. 5 - How Do We Know? Why is it important that a theory...Ch. 5 - Prob. 1DQCh. 5 - Prob. 2DQCh. 5 - Prob. 3DQCh. 5 - Prob. 4DQCh. 5 - Prob. 5DQCh. 5 - Prob. 6DQCh. 5 - Prob. 7DQCh. 5 - An astronomy textbook is to be dropped from a tall...Ch. 5 - Compared to the strength of Earths gravity at its...Ch. 5 - Compare the force of gravity on a 1 kg mass on the...Ch. 5 - Prob. 4PCh. 5 - The International Space Station is in orbit around...Ch. 5 - If a small lead ball falls from a high tower on...Ch. 5 - What is the circular velocity of an Earth...Ch. 5 - What is the circular velocity of an Earth...Ch. 5 - What is the orbital speed at Earths surface?...Ch. 5 - Prob. 10PCh. 5 - Prob. 11PCh. 5 - Describe the shape of the orbit followed by the...Ch. 5 - Prob. 13PCh. 5 - Prob. 14PCh. 5 - Prob. 15PCh. 5 - Prob. 16PCh. 5 - A moon of Jupiter takes 1.8 days to orbit at a...Ch. 5 - Why can the object shown here be bolted in place...Ch. 5 - What is the flux at position 2 compared to...Ch. 5 - Why is it a little bit misleading to say that this...
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- Which of Einstein's theories extends what we know about Newtonian physics and cons of the gravity?arrow_forwardExplain, according to both geocentric and heliocentric cosmologies, why we see retrograde motion of the planets.arrow_forwardWhy would Aristotles explanation of gravity not work if Earth is not the center of the Universe?arrow_forward
- Assume that the mass of the Sun is 75% hydrogen and that all of this mass could be converted to energy according to Einstein’s equation E=mc2 . How much total energy could the Sun generate? If m is in kg and c is in m/s, then E will be expressed in J. (The mass of the Sun is given in Appendix E.)arrow_forwardWhat would be the Schwarzschild radius, in light years, if our Milky Way galaxy of 100 billion stars collapsed into a black hole? Compare this to our distance from the center, about 13,000 light years.arrow_forwardWhich of Einstein’s postulates of special relativity includes a concept that does not ?t with the ideas of classical physics? Explain.arrow_forward
- Use a distance of R = 1.48x10^11 meters for the distance between the earth and the sun. Use a mass of 1.99x10^30 kg to be 1 solar mass. For each of the different sun masses (as values of solar mass, aka 0.5 solar masses = 1x10^30 kg), as outlined in the lecture, calculate the period of the earth's orbit in days using Kepler's law for circular orbits (I double-checked it with these values and it works) and also calculate the corresponding orbital velocity of the earth. Questions: 1.) Using these values, and 6x10^24 kg for the mass of the earth, what is the strength of the gravitational force between the earth and the sun? 2.) If the earth were twice as far from the sun, what would be its period of orbit? 3.) Mars orbits the sun at a distance of 2.18x10^11 meters. How long is a Martian year, using Kepler's law for circular orbits?arrow_forwardExplain the implications and applications of each postulate of Einstein from the special theory of relativity.arrow_forwardSuppose two identical objects are sitting 1 meter apart. The gravitational force between them is 9N. What would the gravitational force be if they were moved to 3 meters apartarrow_forward
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