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zepelin [54]
3 years ago
10

A ball thrown straight up takes 1.89s to reach a height of 41.6m.

Physics
1 answer:
yulyashka [42]3 years ago
8 0

Answer:

Explanation:

average velocity is 41.6/1.89 = 22.0 m/s

initial velocity u is

22.0 = (u + u - 9.81(1.89))/2

44.0 = 2u - 18.5

62.56 = 2u

u = 31.3 m/s

max height is

v² = u² + 2as

s = (v² - u²) / 2a

s = (0² - 31.3²) / (2(-9.81)) = 49.9 m

49.9 = 41.6 = 8.27 m higher

In process numbers have been rounded to 3 s.d. for reporting purposes.

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Being able to see a square in the middle of the image despite not having lines to form a square represents the Gestalt principle
vredina [299]

Answer: The correct answer for the blank is -

C. closure.

Gestalt principle of closure describes how we perceive complete figures even when the information that form the figure is missing.

This is due the fact that our brain responds to the familiar patterns inspite of getting incomplete information.

For instance, in the given question, we are able to perceive an image of square in the center despite not having actual lines that form a square.

Thus, it represents principle of closure.

7 0
4 years ago
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What's 600,000,000 divided by 3,000.000,000,000?
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Answer:0.000002

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5 0
3 years ago
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a
Oxana [17]

Answer:

5 mg, 5\cdot 10^{-3}g

Explanation:

First of all, let's rewrite the mass in grams using scientific notation.

we have:

m = 0.005 g

To rewrite it in scientific notation, we must count by how many digits we have to move the dot on the right - in this case three. So in scientific notation is

m=5\cdot 10^{-3}g

If  we want to convert into milligrams, we must remind that

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So we can use the proportion

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4 0
3 years ago
Electrical resistance is measured in
devlian [24]
Resistance is the ratio of
 
         (voltage between two points in the circuit)
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8 0
4 years ago
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In the Niagara Falls hydroelectric generating plant, the energy of falling water is converted into electricity. The height of th
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Answer:

2.124 kg of water

Explanation:

height of the falls is about 48 meters.

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3 years ago
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