The value of the gravitational acceleration g decreases with elevation from 9.807 m/s 2 at sea level to 9.767 m/s 2 at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

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Answer 1

Textbook Question

Chapter 1.11, Problem 1P

The value of the gravitational acceleration g decreases with elevation from 9.807 m/s² at sea level to 9.767 m/s² at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

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Students have asked these similar questions

What is the mass of an object that falls freely under the influence of gravity from an elevation of 100 m above the earth's surface? The downward velocity is 100 m/s and strikes the earth at 109.4m/s. Take g = 9.81 m/s2. Ans. m=40kg

A person weighs 30lb on the moon, where g = 5.32 ft/s2. Cetermine (a) the mass of the person; and (b) the weight of the person on earth.

The figure below shows a spherical buoy, having a diameter of 1.7 m and weighing 6500 N, anchored to the floor of a lake by a cable. The density of the lake water is 10³ kg/m³ and g = 9.81 m/s². Determine the force exerted by the cable, in N. Water p = 10³ kg/m³ Buoy Cable

Answer 2

Textbook Question

Chapter 1.11, Problem 1P

The value of the gravitational acceleration g decreases with elevation from 9.807 m/s² at sea level to 9.767 m/s² at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

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Answer 3

Textbook Question

Chapter 1.11, Problem 1P

The value of the gravitational acceleration g decreases with elevation from 9.807 m/s² at sea level to 9.767 m/s² at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 1.11, Problem 1P

The value of the gravitational acceleration g decreases with elevation from 9.807 m/s² at sea level to 9.767 m/s² at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

Answer 8

Expert Solution & Answer

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

The reason why a bicyclist on a downhill road picks up speed even when he is not pedaling and also find whether this violates the principle of conservation of energy?

Answer 12

Explanation of Solution

In this case, there are two forms of energy involved; potential energy and kinetic energy. When the bicyclist is at the top of a hill, he has potential energy due to his mass. When bicyclist moves, the energy changes its form to kinetic energy due to his motion. Thus, the bicyclist picks speed when he moves downhill even when he is not pedaling.

There is a transformation in the forms of energy which states the principle of energy. Hence, there is no violation of the principle of conservation of energy.

Answer 13

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The value of the gravitational acceleration g decreases with elevation from 9.807 m/s 2 at sea level to 9.767 m/s 2 at an altitude of 13,000 m, where large passenger planes cruise. Determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level.

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