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salantis [7]
3 years ago
6

Which answer choice provides the best set of labels for Wave A and Wave B?

Physics
2 answers:
Blizzard [7]3 years ago
4 0

Answer:

Answer Choice D:

Wave A: Low Frequency Wave

Wave B: High Frequency Wave

Explanation:

Lower Frequency waves have a higher wavelength, while higher frequency waves have a lower wavelength.

hodyreva [135]3 years ago
3 0
A has less energy and lower frequency, while B has greater energy and higher frequency.
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If an object is accelerating at 4 m/s^2 and has a mass of 8 kg, what is the net
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Answer:

The force applied is 32 N

Explanation:

F = ma

F = 8 × 4

F = 32 N

7 0
3 years ago
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Hydrogen fluoride gas (HF) and sodium hydroxide (NaOH) react in a test tube. They form water and sodium fluoride (NaF). Which ty
solmaris [256]
The type of reaction that occurred in the test tube is ACID BASE REACTION.
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HF + NaOH = NaF + H2O
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8 0
3 years ago
Which of the following is NOT an indicator of a physical change?
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Answer:

1.  C.  The change is easily reversible

2. A.  a physical change

Explanation:

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8 0
2 years ago
An engine absorbs 1749 J from a hot reservoir and expels 539 J to a cold reservoir in each cycle. a. What is the engine’s effici
Masja [62]

Answer:

a)η = 69.18 %

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c)P=3967.21 W

Explanation:

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Q₁ = 1749 J

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From first law of thermodynamics

Q₁   = Q₂ +W

W=Work out put

Q₂=Heat rejected to the cold reservoir

Q₁ =heat absorb by hot  reservoir

W= Q₁- Q₂

W= 1210 J

The efficiency given as

\eta=\dfrac{W}{Q_1}

\eta=\dfrac{1210}{1749}

\eta=0.6918

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P=\dfrac{W}{t}

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8 0
3 years ago
Weight is measured in units called
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Pounds

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