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lorasvet [3.4K]
2 years ago
5

How much work is required for a 74 kg sprinter to accelerate from rest to 2.2 m/s?

Physics
2 answers:
My name is Ann [436]2 years ago
7 0

Answer:

179.1 kg

Explanation:

BigorU [14]2 years ago
3 0

Answer:

Should be 179.1 kg

Explanation:

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Anestetic [448]

Answer:

.....what type of question is this

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2 years ago
what are the 3 properties of components of the universe that can be determined using electromagnetic radiation?
stepan [7]
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4 0
3 years ago
Which types of numbers does scientific notation best describe?
Travka [436]
The correct answer is
<span>c) very small and very large

Let's see this with a few examples:
1) if we have a very small number, such as
</span>0.0000000001
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</span>1\cdot 10^{-10}
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4 0
2 years ago
A wave of wavelength 0.3 m travels 900 m in 3.0 s. Calculate its frequency.
zzz [600]

Answer:

1000 Hz

Explanation:

<em>The frequency would be 1000 Hz.</em>

The frequency, wavelength, and speed of a wave are related by the equation:

<em>v = fλ ..................(1)</em>

where v = speed of the wave, f = frequency of the wave, and λ = wavelength of the wave.

Making f the subject of the formula:

<em>f = v/λ.........................(2)</em>

Also, speed (v) = distance/time.

From the question, distance = 900 m, time = 3.0 s

Hence, v = 900/3.0 = 300 m/s

Substitute v = 300 and λ = 0.3  into equation (2):

f = 300/0.3 = 1000 Hz

6 0
3 years ago
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