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hammer [34]
3 years ago
14

For each or the following cases explain why you would either approve or dissaprove the proposed research experiments

Advanced Placement (AP)
1 answer:
timurjin [86]3 years ago
5 0
What are the cases you are referencing?
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Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid ra
Radda [10]
NOTE: Check your formula sheet if you have one these are often there.

Ac = \frac{V^{2} }{r} = rω^2

We know r = 4.00m

but what is ω?

ω = \frac{2π}{T} = 2π*f

f is our frequency. we want it in seconds so we can divide by 60.

300/60 = 5rev/s

Ac = rω^2 = (4)(5)^2 = 100m/s

(b) Linear speed or v is equal to v = ω = (5)(4) = 20m/s
      340 / 20 = 17

      The speed of sound is 17 times faster.

NOTE: finished physics so i might be rusty and use an equation wrong. Tell me if something doesnt make sense. Im still new to this myself.


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3 years ago
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What is the difference between psychoanalysis and psychophysics?
Katarina [22]

Answer:

D) both B and C

Explanation:

Psychoanalysis is a school of psychology founded by Sigmund Freud in the late 19th and early 20th centuries. It is a way to resolve conflict in a subject through free association or dreams and failed actions in a person's life.

Psychophysics is a discipline that studies the physical stimuli and the sensations that those stimuli produce. It was started by Weber and Fechner and was primarily been concerned with quantifying sensations. The form used here later found a bedrock for behavioral psychology.

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What's the last five letters of the alphabet
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Z, Y, X, W, V or habet if it's a trick question

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PtichkaEL [24]
It is called an ethnic group.
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true because In ecology, a niche is a term describing the relational position of a species or population in its ecosystem to each other

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