cynayapartlow88
22.08.2019 •
Physics
Which of the following terms best describes the scenario below? a meteor moving through outer space continues to move on the same path until an outside force acts on it.
a. acceleration.
b. inertia.
c. speed.
d. newton.
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Ответ:
Option B. inertia
Explanation:
Inertia can be explained as the property of a body due to which the body resists any change in its form or shape.
The given case complies with Newton's first law or Law of inertia which says_ a body in motion will remain in that state of motion or at rest will continue to be in that stationary until it comes under the action of some external force.
Therefore, a meteor moving through outer space will continue on that path until acted upon by an external force.
Ответ:
moving them farther apart
adding electrons
Explanation:
The magnitude of the electric force between two object is given by:
where
k is the Coulomb's constant
q1 and q2 are the magnitudes of the charges of the two objects
r is the separation between the two objects
From the formula, we see that F is inversely proportional to the distance, so if we move the objects farther apart, the distance r increases, and the force F decreases. Moreover, the force is directly proportional to the charges q1 and q2. Since in this problem we have two positively charged objects, if we add electrons to them we decrease the magnitude of their charges, therefore the magnitude of the force F decreases.