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kotegsom [21]
3 years ago
15

She leaves her campsite and runs north for 10 miles turns east and runs 8 miles then turns south and runs 2 miles.whats her dist

ance?
Physics
1 answer:
Mama L [17]3 years ago
4 0

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:

d_1 = 10 miles north

d_2 = 8 miles east

d_3 = 2 miles south

To find the distance, we just have to add the length of each path, ignoring the direction. Therefore:

d=d_1 + d_2 + d_3 = 10+8+2 = 20 miles

Learn more about distance and displacement:

brainly.com/question/3969582

#LearnwithBrainly

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3 years ago
A stationary siren on a firehouse is blaring at 81Hz. Assume the speed of sound to be 343m/s. What is the frequency perceived by
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For a stationary siren on a firehouse is blaring at 81Hz. Assume the speed of sound to be 343m/s, the frequency perceived  is mathematically given as'

F=81.721Hz

<h3>What is the frequency perceived by a firefighter racing toward the station at 11km/h?</h3>

Generally, the equation for the doppler effect  is mathematically given as

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Therefore

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In conclusion, the frequency is

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2 years ago
Technician A says crimping solderless connections is the best method of splicing wires. Technician B says crimping should not be
algol13

Answer:

Technician b is correct.

Explanation:

Crimping cable allows a firm connection in mechanical terms and allows a low resistance path for the signal or the current flow, solder although it is better in terms of electrical conduction, can be impractical if the cable is subjected to excessive movement.

A crimped cable with excessive movement can also be easily broken at the ends, where it joins the part of the cable that is crimped, for this reason, a cable that is in excessive motion is recomended to be spliced ​​by joining cable with cable .

In order to decide which metod is better for splicing cables its necessary to evaluate each situation separatly.

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