EBK ESSENTIAL COSMIC PERSPECTIVE, THE
8th Edition
ISBN: 9780134532417
Author: Voit
Publisher: YUZU
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Chapter 4, Problem 32EAP
If Earth were twice as far from the Sun, the force of gravity attracting Earth to the Sun would be (a) twice as strong. (b) half as strong. (C) one-quarter as strong.
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Chapter 4 Solutions
EBK ESSENTIAL COSMIC PERSPECTIVE, THE
Ch. 4 - Prob. 1VSCCh. 4 - Check your understanding of some of the many types...Ch. 4 - Check your understanding of some of the many types...Ch. 4 - Check your understanding of some of the many types...Ch. 4 - Check your understanding of some of the many types...Ch. 4 - Define speed, velocity, and acceleration. What are...Ch. 4 - Define momentum and force. What do we mean when we...Ch. 4 - What is free-fall, and why does it make you...Ch. 4 - Prob. 4EAPCh. 4 - Prob. 5EAP
Ch. 4 - Define kinetic energy, radiative energy, and...Ch. 4 - Define and distinguish temperature and thermal...Ch. 4 - Prob. 8EAPCh. 4 - Summarize the universal law of gravitation both in...Ch. 4 - What is the difference between a bound and an...Ch. 4 - Under what conditions can we use Newton’s version...Ch. 4 - Explain why orbits cannot change spontaneously,...Ch. 4 - Explain how the Moon creates tides on Earth. Why...Ch. 4 - How do the tides vary with the phase of the Moon?...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - A car is accelerating when it is (a) traveling on...Ch. 4 - Compared to their values on Earth, on another...Ch. 4 - Which person is weightless? (a) a child in the air...Ch. 4 - Consider the statement “There’s no gravity in...Ch. 4 - To make a rocket turn left, you need to (a) fire...Ch. 4 - Compared to its angular momentum when it is...Ch. 4 - Prob. 31EAPCh. 4 - If Earth were twice as far from the Sun, the force...Ch. 4 - According to the law of universal gravitation,...Ch. 4 - If the Moon were closer to Earth, high tides would...Ch. 4 - Testing Gravity. Scientists are constantly trying...Ch. 4 - How Does the Table Know? Thinking deeply about...Ch. 4 - 37. Your Ultimate Energy Source. Roles: Scribe...Ch. 4 - Weightlessness. Astronauts are weightless when in...Ch. 4 - Einstein’s Famous Formula. a. What is the meaning...Ch. 4 - The Gravitational Law. a. How does quadrupling the...Ch. 4 - Prob. 41EAPCh. 4 - Head to Foot Tides. You and Earth attract each...Ch. 4 - Prob. 43EAPCh. 4 - Prob. 44EAPCh. 4 - Prob. 45EAPCh. 4 - Prob. 46EAPCh. 4 - Prob. 47EAPCh. 4 - Prob. 48EAPCh. 4 - Space Station. Visit a NASA site with pictures...Ch. 4 - Prob. 50EAPCh. 4 - Prob. 51EAP
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- Since 1995, hundreds of extrasolar planets have been discovered. There is the exciting possibility that there is life on one or more of these planets. To support life similar to that on the Earth, the planet must have liquid water. For an Earth-like planet orbiting a star like the Sun, this requirement means that the planet must be within a habitable zone of 0.9 AU to 1.4 AU from the star. The semimajor axis of an extrasolar planet is inferred from its period. What range in periods corresponds to the habitable zone for an Earth-like Planet orbiting a Sun-like star?arrow_forwardNear a massive planet, is gravitational acceleration large or small? Is space strongly curved, or not? What about near a small marble?arrow_forwardAssume 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_forward
- The law of universal gravitation says that there is a force between two objects in the universe. Can there ever be a physical instance when the two objects will never have an influence on each other? Hint: look at the equation that relates force, mass, distance, and the gravitational constant G: Gxm, xma F = O No, no matter how far apart they are, there will always be some tiny force acting between the two. O No, Since the distance between two objects can never be zero. All listed answers here are correct. O No, they will always influence each other. You cannot divide by zero.arrow_forwardaccording to the universal gravitational Newton's law, the gravity exists between any two massed objects at a certain distance. Why could you not sense the gravity from your neighboring classmate who is sitting at , e.g. 1 meter away from you?arrow_forwardThe active gravitational mass (m^) of a particle is an attribute that enables it to establish a gravitational field in space, whereas the passive gravitational mass (m") is an attribute that enables the particle to respond to this field. (a) Write Newton's law of universal gravitation in terms of the relevant active and passive gravitational masses. (b) Show that the third law of motion makes it unnecessary to distinguish between active and passive gravitational mass.arrow_forward
- Rank the average gravitational forces from greatest to least between (a) the Sun and Mars, (b) the Sun and the Moon, and (c) the Sun and Earth. Rank from greatest to least. To rank items as equivalent, overlap them.arrow_forwardYou may have an image of Sir Isaac Newton sitting under a tree and after being hit on the head by an apple he suddenly "discovered" the Law of Universal Gravitation. In fact, the theory was a result of years’ worth of research, which in turn was based on centuries of accumulated knowledge. He is credited with determining that the following relationship is universal. The gravitational attraction between two objects varies jointly with their masses (m1 and m2) and inversely with the square of the distance (d) between them. By what percent does the force of gravitational attraction change if one mass is increased by 20%, the other mass decreased by 20%, and the separation is reduced by 25%?arrow_forwardA 70-kg person is standing on earth surface. Calculate the gravitational attraction on the person by the Sun (mass of sun = 2*1030 kg, sun’s radius = 6.96*105 km, earth-sun distance = 1.5*1011 m). a) 686 N b) 0.415 N c) 19277 Narrow_forward
- Two stars separated by a large distance have some force of attraction between them. If the distance between the stars then triples, assuming the masses of the stars are kept the same, what happens to the force of attraction between them, that is, does the force increase or decrease or stay the same? If the force increases or decreases, indicate by what factor (for example, "the force is 10 times as much as before").arrow_forward17. Suppose Earth orbited a star whose mass was double the mass of the sun. If the radius of Earth's orbit remained the same as it is now, then compared with the gravitational force between Earth and the sun, the gravitational force between Earth and the star would be - half as much the same two times as much four times as much CLEAR ALL O 12 O 13 O 16 O 17 O 18 O 19 O 20 ( PREVIOUS O 14 O 15 21 NI .. ... DO bp DII 96 & 4 6 e t a f h k b altarrow_forward(a) At what position in its elliptical orbit is the speed of a planet a maximum? when it is closest to the sun when it is farthest from the sun when it is midway between its farthest and closest distances to the sun everywhere in its orbit, the speed is constant (b) At what position is the speed a minimum? when it is closest to the sun when it is farthest from the sun when it is midway between its farthest and closest distances to the sun everywhere in its orbit, the speed is constantarrow_forward
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