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Sedbober [7]
3 years ago
6

Given this measurement 2642 ft, how many significant figures are there?

Physics
1 answer:
Stolb23 [73]3 years ago
8 0
4 sig figs. Just count
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Which is an example of a physical change
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Answer:

ice forming and then melting back into water

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3 years ago
. A water balloon is thrown horizontally at a speed of 2.00 m/s from the roof of a building that is 6.00m above the ground. At t
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Answer:

Explanation:

Height of building

H = 6m

Horizontal speed of first balloon

U1x = 2m/s

Second ballot is thrown straight downward at a speed of

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Time each gallon hits the ground

Balloon 1.

Using equation of free fall

H = Uoy•t + ½gt²

Uox = 0 since the body does not have vertical component of velocity

6 = ½ × 9.8t²

6 = 4.9t²

t² = 6 / 4.9

t² = 1.224

t = √1.224

t = 1.11 seconds

For second balloon

H = Uoy•t + ½gt²

6 = 2t + ½ × 9.8t²

6 = 2t + 4.9t²

4.9t² + 2t —6 = 0

Using formula method to solve the quadratic equation

Check attachment

From the solution we see that,

t = 0.9211 and t = -1.329

We will discard the negative value of time since time can't be negative here

So the second balloon get to the ground after t ≈ 0.92 seconds

Conclusion

The water ballon that was thrown straight down at 2.00 m/s hits the ground first by 1.11 s - 0.92s = 0.19 s.

4 0
3 years ago
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What are the concepts of dynamically continuous innovation and discontinuous innovation? Can you share examples to illustrate th
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Answer:

Explained

Explanation:

Dynamically continuous innovation:

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best example can as simple as transformation in  Television. New HD TVs have flat panels, wide screens and improved performance The Added features are considered dynamically improved.

Discontinuous innovation:

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3 years ago
Hello, are there any furries, artists, equestrians, gamers, athletes, etc? If so reply down below
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“Just believe in yourself. Even if you don’t pretend that you do and, and some point, you will.”

Explanation:

5 0
3 years ago
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Based on the principles of convection, conduction and thermal radiation, which scenario below is most similar to the following s
Ksivusya [100]

The situation (heat going through the ceiling) describes
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C).  No.  There's nothing for the heat to soak through between
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3 years ago
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