Explanation:
Friction
Resistance defines friction. Friction consists of the resistance of one object in relation to another object with which it is in contact. Thus, friction is the force that opposes sliding motion, explains the Cornell Center for Materials Research. An example of friction involves removing a stain from clothing. You place detergent on a stained shirt, then repeatedly slide part of the shirt against the stained section. The friction eliminates the stain from the shirt.
Gravity
Gravity is simply defined as what goes up must come down. Gravity is the natural force exerted between two objects, drawing them toward each other. Therefore, instead of an object such as an apple thrown in the air staying there or floating, it falls down. Weight is extremely important to gravity. Gravity always exerts a force equal to the weight of the object it is acting on. A cup remains on a table because the upward force of the table is equal to the weight of the cup, causing it to stay in place.
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Answer:
It is not possible for the magnitude of displacement of an object to be greater than the distance that this object travelled.
Explanation:
The displacement of an object is difference between its final and initial position. On the other hand, the distance that an object travelled would be equal to the length of the path that this object takes when it moved from its initial position to the final position.
The distance an object travelled and the magnitude (length) of its displacement each represent the length of a path between the initial and final position:
- The distance travelled can represent the length of any path between these two points.
- On the other hand, the magnitude of displacement can only represent the length of the line segment that directly connects the two points.
On a flat surface, the shortest path between two points is always going to be a straight line segment connecting the two points. If these two points are the initial and final position of the object, the magnitude of displacement would simply represent the length of that straight line segment. It is not possible for the distance travelled to be any shorter than the shortest path between the two points. Therefore, the displacement of an object would always be less than or equal to the distance it travelled.
when you do positive work on an object, you ______
A. decrease the object's energy
<u>B. keep the object's energy the same
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C. increase the object's energy
D. may increase or decrease the object's energy
Answer:
runoff from precipitation
precipitation falls direction into the collection area
Explanation:
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