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Katena32 [7]
3 years ago
5

What feedback helps to magnify a change

Physics
2 answers:
Rama09 [41]3 years ago
7 0

positive feedback amplifies a change ... can lead to oscillations system instability and saturation

if a loudspeaker is close to a microphone a very loud squeal = + fb

lasers may use same idea

Vinil7 [7]3 years ago
5 0

Hi there, i'll do the best I can I hope this answers your question.


Positive vs. Negative Feedback. The key difference between positive and negative feedback is their response to change: positive feedback amplifies change while negative feedback reduces change. This means that positive feedback will result in more of a product: more apples, more contractions, or more clotting platelets ...

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What is the difference between forming a hypothesis and making a prediction based on the hypothesis?
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Answer:

While a hypothesis is a guess that is predominantly used in science, a prediction is a guess that is mostly accepted out of science. A hypothesis is otherwise known as a good or intelligent guess. ... Moreover, hypotheses are testable guesses about the things that you'd expect to take place in your research study.

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What kind of charge does an object have when it has given away electrons?
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Which of Newton's laws accounts for the following statement? "A force cannot act alone."
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When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°C. He turns on the air conditioner
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1353.38 Watt

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T₁ = Initial temperature of the house = 35°C

T₂ = Final temperature of the house = 20°C

Δt = Time taken to cool the house = 38 min = 38×60 = 2280 s

m = mass of air in the house = 800 kg

Cv = Specific heat at constant volume = 0.72 kJ/kgK

Cp = Specific heat at constant pressure = 1.0 kJ/kgK

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⇒q = 800×720×(35-20)

⇒q = 8640000 J

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