NOTE: Check your formula sheet if you have one these are often there.
Ac =

= rω^2
We know r = 4.00m
but what is ω?
ω =

= 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.
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.
Answer:
Z, Y, X, W, V or habet if it's a trick question
Answer:
true because In ecology, a niche is a term describing the relational position of a species or population in its ecosystem to each other
Explanation: