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MAXImum [283]
3 years ago
13

A rock is dropped into a well. If you hear a splash 14 seconds later what was its speed

Physics
1 answer:
grigory [225]3 years ago
4 0

Answer:

14 seconds

Explanation:

because you dropped it and it takes 14 seconds

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7 0
2 years ago
Why are understandings of patterns so important to human development?
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Patterns provide a sense of order in what might otherwise appear chaotic. Researchers have found that understanding and being able to identify recurring patterns allow us to make educated guesses, assumptions, and hypothesis; it helps us develop important skills of critical thinking and logic
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3 years ago
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An airplane travels east at an air speed of 400.0 m/s into a head wind of 35.0 m/s. What is the airplane's ground speed?
mezya [45]

Velocity of the plane relative to the air = +400.0 m/s

Velocity of the air relative to the ground = -35.0 m/s (negative because it's moving opposite to the eastward direction)

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3 years ago
If Ms. Ramirez drops a watermelon from the top of the second-floor fire escape outside her room, and it takes 1.5 seconds to hit
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The velocity of the watermelon as it hits the ground is 14.715 m/s.

Given the data in the question;

Since the Watermelon was dropped from rest,

  • Initial velocity of the Watermelon;u = 0m/s
  • Time taken for the Watermelon to hit the ground; t = 1.5s
  • We know that, Acceleration due to gravity; g = 9.81 m/s^2

Now, we determine the velocity of the watermelon as it hits the ground which is the final velocity.

From the First Equation of Motion:

v = u + at

Now, under gravity, acceleration ''a" will Acceleration due to gravity;g = 9.81m/s^2, "v" is the final velocity, "u" is the initial velocity and "t" is the time taken.

So, we substitute our values into the equation

v = 0m/s\ +\ ( 9.81m/s^2\ *  1.5s )\\\\v = ( 9.81m/s^2\ *  1.5s )\\\\v = 14.715 m/s

Therefore, the velocity of the watermelon as it hits the ground is 14.715 m/s

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3 years ago
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