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storchak [24]
3 years ago
14

What is negitive acceleration?​

Physics
2 answers:
DerKrebs [107]3 years ago
6 0

Answer:

Answer

When decrease in velocity is called negative acceleration

Explanation:

Wewaii [24]3 years ago
3 0

According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration.An object with negative acceleration could be speeding up, and an object with positive acceleration could be slowing down.

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Two guitars are playing together producing a beat frequency. The first guitar is playing at a frequency of 867 Hz and the beat i
IgorLugansk [536]

Answer:

892 Hz or 842 Hz

Explanation:

Given

The frequency of first guitar is 867 Hz

Beat is produced for every 0·04 s

∴ Beat has a time period of 0·04 s

<h3>Beat frequency is defined as the inverse of the time period of the beat </h3>

Beat frequency = 1 ÷ (Time period) = 1 ÷ 0·04 = 25 Hz

Let the frequency of the second guitar be f Hz

<h3>Beat frequency is defined as the absolute difference between the two frequencies</h3>

∴ Beat frequency = (867 - f) or (f - 867)

First case

25 = 867 - f ⇒ f = 842 Hz

Second case

25 = f - 867 ⇒ f = 892 Hz

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An isotope has a half life of 2 days. After 6 days, how much of the original material is left?
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