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balu736 [363]
3 years ago
11

1.

Physics
2 answers:
Kaylis [27]3 years ago
4 0
I am about 99% sure, here are my answers
1. A, if you organize your data you are able to identify clusters of similar data
2. B, the data table will give the numerical values of your data while the bar graph will give a visual representation of your data
3. C, a line graph shows a cause and effect relationship

for number three, B is referring to a pie chart and D is referring to a bar graph
shutvik [7]3 years ago
4 0
1.A
2. C
3. D

I'm not sure that 2 is c. Hope this helps


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An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in 4.00 s.
Veseljchak [2.6K]

Answer:

a) -1.25 rev/s² and 23.3 rev

b)  2.67s

Explanation:

a) ωФ_o_z = (500 rev/min)(1min/ 60s) => 8.333 rev/s

ωФ_Z= (200 rev/min)(1min/ 60s) => 3.333rev/s

time 't'= 4 s

angular acceleration 'αФ_Z'=?

constant angular acceleration equation is given by,

ωФ_Z= ωФ_o_z + αФ_Zt

αФ_Z= (ωФ_Z - ωФ_o_z )/t => (3.333-8.333)/4

αФ_Z= -1.25 rev/s²

θ-θФ_o = ωФ_o_z t + 1/2αФ_Zt²

      =(8.333)(4) + 1/2 (-1.25)(4)²

      =23.3 rev

b) ωФ_Z=0   (comes to rest)

ωФ_o_z = 3.333 rev/s

αФ_Z= -1.25 rev/s²

ωФ_Z= ωФ_o_z + αФ_Zt

t= (ωФ_Z - ωФ_o_z)/αФ_Z => (0- 3.333)/-1.25

t= 2.67s

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3 years ago
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A wave has a frequency of 440 hz and a wavelength of 0.77m. What is the velocity of the wave
Lunna [17]

Answer:velocity of wave

=338.8 m/s

Explanation:

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