Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 105E
An object tossed vertically will reach a maximum height. An object dropped from that same height would land with the same speed at which the first, object was thrown. How fast would an abject hit Earth if it were dropped from a distance beyond Neptune, falling only because of Earth gravity?
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(a) A spaceship is projected vertically upward from the Earth's surface with an initial speed of 6.91 km/s, but unfortunately does not have a great enough speed to escape Earth's gravity. What
maximum height does the spaceship reach (in m)? Ignore air resistance.
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(b) A meteoroid falls from a height of 1.91 x 107 m above the surface of the Earth. What is the speed (in m/s) when the meteorite hits the Earth? Assume the meteoroid is initially at rest with respect
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The fall of the meteorite is the time-reversal of the upward flight of the projectile, so it is described by the same energy equation as in part (a). m/s.
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Chapter 4 Solutions
Conceptual Physical Science (6th Edition)
Ch. 4 - What did Newton discover about gravity?Ch. 4 - In what sense does the Moon fall?Ch. 4 - State Newtons law of universal gravitation in...Ch. 4 - What is the magnitude of gravitational force...Ch. 4 - What is the magnitude of the gravitational force...Ch. 4 - How does the force of gravity between two bodies...Ch. 4 - Prob. 7RCQCh. 4 - Would the springs inside a bathroom scale be more...Ch. 4 - Would the springs inside a bathroom scale be more...Ch. 4 - Explain why occupants of the international Space...
Ch. 4 - Under what conditions is your weight equal to mg?Ch. 4 - What was the cause of perturbations discovered in...Ch. 4 - The perturbations of Uranus led to what greater...Ch. 4 - What is the status of Pluto in the family of...Ch. 4 - Which is thought to be more prevalent in the...Ch. 4 - A stone is thrown upward at an angle. Neglecting...Ch. 4 - A stone is thrown upward at an angle. Neglecting...Ch. 4 - A projectile is launched upward at an angle of 75...Ch. 4 - A projectile is launched vertically at 100 m/s. If...Ch. 4 - What connection does Earth's curvature have with...Ch. 4 - Why is it important that a satellite remain above...Ch. 4 - When a satellite is above Earths atmosphere, is it...Ch. 4 - If a satellite were beyond Earths gravity, what...Ch. 4 - Why doesnt the force of gravity change the speed...Ch. 4 - Why doesnt the force of gravity change the speed...Ch. 4 - Is the period longer or shorter for orbits of...Ch. 4 - Why does the force of gravity change the speed of...Ch. 4 - Prob. 28RCQCh. 4 - Prob. 29RCQCh. 4 - A space vehicle can outrun Earth's gravity, but...Ch. 4 - F=Gm1m2d2 Using the formula for gravity, show that...Ch. 4 - F=Gm1m2d2 Calculate the force of gravity on the...Ch. 4 - F=Gm1m2d2 Show that the average force of gravity...Ch. 4 - F=Gm1m2d2 Show that the force of gravity between...Ch. 4 - F=Gm1m2d2 Show that the force of gravity between a...Ch. 4 - F=Gm1m2d2 Calculate the force of gravity between a...Ch. 4 - Suppose you stood atop a ladder that was so tall...Ch. 4 - Show that the gravitational force between two...Ch. 4 - Show that there is no change in the force of...Ch. 4 - Find the change in the force of gravity between...Ch. 4 - Consider a pair of planets in which the distance...Ch. 4 - Many people mistakenly believe that the astronauts...Ch. 4 - Newtons universal law of gravity tells us that...Ch. 4 - An airplane is flying horizontally with speed 1000...Ch. 4 - A ball is thrown horizontally from a cliff at a...Ch. 4 - A satellite at a particular point along an...Ch. 4 - A rock thrown horizontally from a bridge hits the...Ch. 4 - A baseball is tossed at a steep angle into the air...Ch. 4 - A penny on its side moving at speed v slides off...Ch. 4 - Students in a lab measure the speed of a steel...Ch. 4 - The planet and its moon gravitationally attract...Ch. 4 - Consider the light of multiple candle flames, each...Ch. 4 - Rank, from greatest to least, the average...Ch. 4 - A ball is tossed off the edge of a cliff with the...Ch. 4 - The dashed lines show three circular orbits about...Ch. 4 - The positions of a satellite in elliptical orbit...Ch. 4 - What would be the path of the Moon if somehow all...Ch. 4 - Is the gravitational force greater on a 1-kg piece...Ch. 4 - Consider a space pod somewhere between Earth and...Ch. 4 - An astronaut lands on a planet that has the same...Ch. 4 - An astronaut lands on a planet that has the same...Ch. 4 - If Earth somehow expanded to a larger radius, with...Ch. 4 - How would the force between a planet and its moon...Ch. 4 - Phil work on the 15th floor of an office building,...Ch. 4 - In 2013, Curiosity landed on the surface of Mars....Ch. 4 - Earth is not exactly a sphere but, rather, bulges...Ch. 4 - A small light source located 1 m in front of a...Ch. 4 - Prob. 73ECh. 4 - Why do the passengers in high-altitude jet planes...Ch. 4 - To begin your wingsuit flight, you step off the...Ch. 4 - In synchronized diving, divers remain in the air...Ch. 4 - What two forces act on you while you are in a...Ch. 4 - If you were in a freely falling elevator and you...Ch. 4 - In the 2014 Rosetta mission, a probe from Earth...Ch. 4 - How does the size of Pluto compare with that of...Ch. 4 - Elements beyond the naturally occurring elements...Ch. 4 - Earth and the Moon are gravitationally attracted...Ch. 4 - Chuck Stone releases a ball near the top of a...Ch. 4 - In the absence of air resistance, why does the...Ch. 4 - At what point in its trajectory does a batted...Ch. 4 - A heavy crate accidentally falls from a...Ch. 4 - Two golfers each hit a ball at the same speed, but...Ch. 4 - When you jump upward, your hang time is the time...Ch. 4 - The hang time of a basketball player who jumps a...Ch. 4 - If youve had the good fortune to witness the...Ch. 4 - Newton knew that if a cannonball were fired from a...Ch. 4 - Satellites are normally seat into orbit by firing...Ch. 4 - Hawaii presents the most efficient launching site...Ch. 4 - Does the speed of a falling object depend on its...Ch. 4 - Prob. 95ECh. 4 - What is the shape of the orbit when the velocity...Ch. 4 - If a flight mechanic drops a box of tools from a...Ch. 4 - How could an astronaut in a space vehicle drop an...Ch. 4 - If you stopped an Earth satellite dead in its...Ch. 4 - Prob. 100ECh. 4 - At what point in Earths elliptical orbit about the...Ch. 4 - The force of gravity on an Earth satellite in...Ch. 4 - Earth is farthest away from the Sun in July and...Ch. 4 - In the 2014 Rosetta mission, when a probe from...Ch. 4 - An object tossed vertically will reach a maximum...Ch. 4 - Comment on whether or not the following label on a...Ch. 4 - Newton tells us that gravitational force acts on...Ch. 4 - "Okay," a friend says, "gravitational force is...Ch. 4 - An apple falls because of its gravitational...Ch. 4 - Jupiter is more than 300 times as massive as...Ch. 4 - When will the gravitational force between you and...Ch. 4 - Explain why the following reasoning is wrong. "The...Ch. 4 - Some people dismiss the validity of scientific...Ch. 4 - Shruti Kumar projects a ball at an angle of 30...Ch. 4 - A friend claims that bullets fired by some...Ch. 4 - A park ranger shoots a monkey hanging from a...Ch. 4 - Which requires more fuel: a rocket going from...Ch. 4 - Two facts: A freely falling object at Earth's...Ch. 4 - A new member of your discussion group says that,...Ch. 4 - A friend says that astronauts inside the...Ch. 4 - Another new member of your discussion group says...Ch. 4 - Occupants inside future donut-shaped rotating...Ch. 4 - A satellite can orbit at 5 km above the Moon's...Ch. 4 - As part of their training before going into orbit,...Ch. 4 - Prob. 125DQCh. 4 - A communications satellite with a 24-h period...Ch. 4 - This situation should elicit good discussion: In...Ch. 4 - (Here's a Chapter 2-type question): When the brake...Ch. 4 - (Here's a Chapter 4-type question): The first...Ch. 4 - Here's a situation to challenge you and your...Ch. 4 - Choose the BEST way to complete the statement. 1....Ch. 4 - The force of gravity between two planets depends...Ch. 4 - Inhabitants of the International Space Station ate...Ch. 4 - A spacecraft on its way from Earth to the Moon is...Ch. 4 - Theoretically, a baseball tossed horizontally in a...Ch. 4 - When no air resistance acts on a projectile, its...Ch. 4 - Without air resistance, a ball tossed at an angle...Ch. 4 - When you toss a projectile sideways, it curves as...Ch. 4 - A satellite in elliptical orbit about Earth...Ch. 4 - A satellite in Earth orbit is mainly above Earth's...
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