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4 years ago

5. Because velocity is a _ quantity, __ matters.

Physics

2 answers:

lora16 [44]4 years ago

8 0

Answer:

speed, mass

Explanation:

Keith_Richards [23]4 years ago

5 0

Answer:

First blank is Speed, The Second Blank is Mass

Explanation:

Velocity is always speed and for mass thats just what they taught us>>>

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If a sound is 30 dB and its absolute pressure was 66 x 10-9 Pa, what must have been the reference pressure?

Ksenya-84 [330]

Given:

I = 30dB

P = 66 × $10^{-9}$ Pa

Solution:

Formula used:

I = $20\log_{10}(\frac{P}{P_{o}})$ (1)

where,

I = intensity of sound

P = absolute pressure

$P_{o}$ = reference pressure

Using Eqn (1), we get:

$30 = 20\log _{10}\frac{66\times 10^{-9}}{P^{o}}$

$P_{o}$ = $\frac{66\times 10^{-9}}{10^{1.5}}$

$P_{o}$ = 2.08 × $10^{-9}$ Pa

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3 years ago

An airplane during departure has a constant acceleration of 3 m / s².

Rama09 [41]

Constant acceleration of plane = 3m/s²

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3m/s² = speed/4s

S = 12m/s

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b) Flight point will be termed as the point the plane got initial speed, u, 20m/s

Find speed after 8s, v

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a = v - u

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3 years ago

Which phrase describes an atom?

kiruha [24]

You haven't included the list of choices that goes with the question, so it's
impossible for me to choose the correct one, or to help you choose it.

Regarding my ability to answer the question and collect the 5-point bounty,
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-- very very very very very very very tiny

-- includes even tinier particles, with electric charges
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-- smaller than the wavelength of visible light

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Ansthethethethethe

the is the is

Explanation:

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2 years ago

5. Because velocity is a _____ quantity, ______ matters.

5. Because velocity is a _ quantity, __ matters.