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skad [1K]
3 years ago
6

What makes a hypothesis testable

Physics
2 answers:
Sergio [31]3 years ago
7 0
<span>A hypothesis is testable when you can create an experiment to study the proposition contained within the hypothesis. For example, the hypothesis ‘Santa travels slower than a unicorn’ is testable in theory by measuring the speeds of both, but it is not truly testable because neither exists in reality.</span>
Diano4ka-milaya [45]3 years ago
3 0

Answer:

it must be able to be proved right or wrong - apex

Explanation:

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A person hears a siren as a fire truck approaches and passes by. The frequency varies from 480Hz on approach to 400Hz going away
alekssr [168]

Answer:

31.2 m/s

Explanation:

f_{app} = Frequency of approach = 480 Hz

f_{aw} = Frequency of going away = 400 Hz

V = Speed of sound in air = 343 m/s

v = Speed of truck

Frequency of approach is given as

f_{app} = \frac{Vf}{V - v}                           eq-1

Frequency of moving awayy is given as

f_{aw} = \frac{Vf}{V + v}                          eq-2

Dividing eq-1 by eq-2

\frac{f_{app}}{f_{aw}} = \frac{V + v}{V - v}

\frac{480}{400} = \frac{343 + v}{343 - v}

v = 31.2 m/s

7 0
3 years ago
If a topographic map included a 6,000 ft. mountain next to an area of low hills, which would best describe the contour lines on
VMariaS [17]
The answer to the given question above would be option B. If a topographic map included a 6,000 ft. mountain next to an area of low hills, the statement that best describe the contour lines on the map is this: <span>The contour lines around the mountain would be very close together. Hope this helps.</span>
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3 years ago
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I need help on number 2 and 3
irinina [24]

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and for 3 Draw them with a lot of space apart from each other. Molucules move freely and openly in air and space.

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3 years ago
What is mightier than steel yet cowers from the sun?
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A closed system:
adoni [48]
The answer is b i just did the test
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2 years ago
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