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Eddi Din [679]
3 years ago
5

4) BRAINLIEST & 10 + POINTS! A wheel with diameter 44 cm completes four revolutions in 0.5 seconds. Find the linear speed of

the edge of the wheel in cm per second. ****Round to the nearest whole number. Linear speed = ____ cm/s
Mathematics
2 answers:
ElenaW [278]3 years ago
4 0

Answer:

≈ 1106 cm/s

Step-by-step explanation:

linear speed = angular speed x radius of the rotation

  • v = ωr
  • v = linear speed (m/s)
  • ω = angular speed (radians/s)
  • r = radius of the rotation (m)

------------

<u>Given</u>:

  • d= 44 cm ⇒ r= 44/2 cm= 22 cm
  • ω= 4 rev/0.5 s= 8 rev/s= 8*2π/s= 16π/s  (converted rev to radians)

<u>Linear speed is:</u>

  • v= 22*16π cm/s ≈ 1106 cm/s (rounded to full number)
Agata [3.3K]3 years ago
3 0

Answer:

352 cm/s

Step-by-step explanation:

same as other thing i jsut did.

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If a varies directly as the cube root of b and if a=3 and b=64.find the formula connecting the variables hence find b when a=15/
Liono4ka [1.6K]

Answer:

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Step-by-step explanation:

Given a varies directly as \sqrt[3]{b} then the equation relating them is

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6 0
3 years ago
I NEED HELP what is 7.25(x+1.5×10)​
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Step-by-step explanation:

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