Daniel steps on the gas pedal of his car, and the engine increases its performance from zero to 2700 rpms (rotations per minute)
1 answer:
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The velocity of the wave on the string is given by
Solving the above equation,
The frequency of the wave and wave length is
The velocity is
Substituting numerical values,
The length of the string is
The distance is 20 miles
Explanation:
Definitions:
- Distance is the total length of the path covered by an object during its motion, regardless of the direction of its motion
- Displacement is the shortest distance between the initial and final position of the motion, so it also takes into account the direction of motion
In this problem, we want to know the distance covered by the woman. The motion consists of the following parts:
north
east
south
To find the distance, we just have to add the length of each path, ignoring the direction. Therefore:
Learn more about distance and displacement:
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