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Chapter 6: Q16 CQ (page 220)

Action at a distance, such as is the case for gravity, was once thought to be illogical and therefore untrue. What is the ultimate determinant of the truth in physics, and why was this action ultimately accepted?

Short Answer

Expert verified

The observation of gravity was a great achievement during that time to develop the theories and hence it is ultimately accepted.

Step by step solution

01

Definition of Gravity

Gravity is a universal phenomenon and is introduced by Newton and Derived the expression for gravitational force.

02

Determining the ultimate determinant

From the gravitational force, it was developed the facts about the planet’s revolution around the orbits.

Using gravitation, almost astronomical problems can be explained and derived to many conclusions.

Therefore, the observation of gravity was a great achievement during that time to develop the theories and hence it is ultimately accepted.

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Most popular questions from this chapter

On February 14, 2000 the NEAR spacecraft was successfully inserted into orbit around Eros, becoming the first artificial satellite of an asteroid. Construct a problem in which you determine the orbital speed for a satellite near Eros. You will need to find the mass of the asteroid and consider such things as a safe distance for the orbit. Although Eros is not spherical, calculate the acceleration due to gravity on its surface at a point an average distance from its center of mass. Your instructor may also wish to have you calculate the escape velocity from this point on Eros.

When a toilet is flushed or a sink is drained, the water (and other material) begins to rotate about the drain on the way down. Assuming no initial rotation and a flow initially directly straight toward the drain, explain what causes the rotation and which direction it has in the northern hemisphere. (Note that this is a small effect and in most toilets the rotation is caused by directional water jets.) Would the direction of rotation reverse if water were forced up the drain?

(a) Calculate Earth’s mass given the acceleration due to gravity at the North Pole is ${9.830 m/s}^{2}$ and the radius of the Earth is $6371 k m$ from pole to pole. (b) Compare this with the accepted value of $M = 5.979 \times 10^{24} k g$ .

(a) What is the period of rotation of Earth in seconds?

(b) What is the angular velocity of Earth?

(c) Given that Earth has a radius of $6.4 \times 10^{6} m$ at its equator, what is the linear velocity at Earth’s surface?

What is the ideal speed to take a \(100{\rm{ m}}\) radius curve banked at \(20.0^\circ \) angle?

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