MTALHAHASSAN2
  • MTALHAHASSAN2
Need help!! Diameter of a sphere is measure in 2.14 micro- meter. Calculate the circumference and volume of a sphere in the meter.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Convert 2.14 micrometer to meters. Find the radius by dividing the diameter by 2 Use it for the formula for the volume and circumference of a sphere. Circumference of a sphere=2(pi)r Volume of a sphere=\[\frac{ 4 }{ 3 }pir^3\]
MTALHAHASSAN2
  • MTALHAHASSAN2
Circumference of a sphere=2(pi)r =2 (3.14)(2.14) =1.34
anonymous
  • anonymous
Like I said: 1. Convert 2.14 micrometer to meters. 2. Find the radius by dividing the diameter by 2

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anonymous
  • anonymous
\[Diameter=\frac{ radius }{ 2 }\] |dw:1442091259695:dw| 1 meter=1.0 x 10^6 micrometers so 1 micrometer=1.0 x 10^-6 meters
MTALHAHASSAN2
  • MTALHAHASSAN2
then the circumference be =2(3.14)(1.07) =6.7
MTALHAHASSAN2
  • MTALHAHASSAN2
@Shalante
MTALHAHASSAN2
  • MTALHAHASSAN2
v= 4/3 pie r^3 v= 4/3(3.14)(1.07)^3
anonymous
  • anonymous
Convert!!
anonymous
  • anonymous
Convert to micrometer
anonymous
  • anonymous
1 meter=1.0 x 10^6 micrometers so 1 micrometer=1.0 x 10^-6 meters
MTALHAHASSAN2
  • MTALHAHASSAN2
oh ok then it be 6.72 x 10^-6 meters
MTALHAHASSAN2
  • MTALHAHASSAN2
rightz?
MTALHAHASSAN2
  • MTALHAHASSAN2
but know for the volume
MTALHAHASSAN2
  • MTALHAHASSAN2
is it be 4*pi*1.07^3
MTALHAHASSAN2
  • MTALHAHASSAN2
sorry it be 4/3*pi*1.07^3
anonymous
  • anonymous
Hey, my explanation above says Convert 2.14 micrometer to meters. Find the radius by dividing the diameter by 2 Use it for the formula for the volume and circumference of a sphere. Circumference of a sphere=2(pi)r Volume of a sphere=(4/3)(pi)r^3 You convert first before plugging anything or you will get messed up because there is an exponent.
anonymous
  • anonymous
Do the steps in order please.
anonymous
  • anonymous
\[\frac{ micrometers }{ 1 }\times \frac{ 0.00001 }{ 1micrometer }\] Convert to meters* from above.
MTALHAHASSAN2
  • MTALHAHASSAN2
ok I get the answer
anonymous
  • anonymous
Show me your steps and answer.
MTALHAHASSAN2
  • MTALHAHASSAN2
ok wait a sec
MTALHAHASSAN2
  • MTALHAHASSAN2
V=43πr3 V=43π(1.07×10−6 m)3 V=43π 1.073×10−6⋅3 m3 V=5.13×10−18 m3
anonymous
  • anonymous
(4/3)(pi)^3 you mean?
MTALHAHASSAN2
  • MTALHAHASSAN2
yeah
anonymous
  • anonymous
I got 5.12 x 10^-18 but close enough.
anonymous
  • anonymous
And your first one?
MTALHAHASSAN2
  • MTALHAHASSAN2
that is C= 2*pi*1.07 um = 6.7x 10^-6
anonymous
  • anonymous
Yea, it looks correct
MTALHAHASSAN2
  • MTALHAHASSAN2
ok thanks a lot

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