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Started By
Message
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Posted on 4/30/19 at 11:41 am to Boudreaux35
quote:
About 6.28' I would think.
quote:
6.28 ft
quote:
2×pi feet.
quote:
0.001189393 miles or 6.28ft
Posted on 4/30/19 at 11:41 am to tigerpawl
2*pi
C1=pi*d
We will work in feet.
5280 ft x 250000 mi = 132,000,000 ft
132,000,000 = pi*d
d= 132,000,000/pi
C2=pi*(d1+2)
C2=pi*(132,000,000/pi + 2)
C2=132,000,000 + 2*pi
C2-C1= 2*pi
C1=pi*d
We will work in feet.
5280 ft x 250000 mi = 132,000,000 ft
132,000,000 = pi*d
d= 132,000,000/pi
C2=pi*(d1+2)
C2=pi*(132,000,000/pi + 2)
C2=132,000,000 + 2*pi
C2-C1= 2*pi
Posted on 4/30/19 at 11:47 am to tigerpawl
Approximately 100,000 mi total for circumference 2.
Approximately 75,000 miles difference
Approximately 75,000 miles difference
This post was edited on 4/30/19 at 11:50 am
Posted on 4/30/19 at 11:53 am to tigerpawl
The picture of earth you posted is not a globe. That’s a flat circle.
Posted on 4/30/19 at 12:00 pm to tigerpawl
Part 2:
Assumptions:
1. A globe the size of a regulation basketball (no surface features; smooth)
2. A yellow string on the surface of the basketball at the circumference.
3. A second red string sits directly over the yellow string, but 1 foot above the surface all the way around.
Question: What is the difference in length between the yellow string and the red string?
Assumptions:
1. A globe the size of a regulation basketball (no surface features; smooth)
2. A yellow string on the surface of the basketball at the circumference.
3. A second red string sits directly over the yellow string, but 1 foot above the surface all the way around.
Question: What is the difference in length between the yellow string and the red string?
This post was edited on 4/30/19 at 12:02 pm
Posted on 4/30/19 at 12:06 pm to tigerpawl
Same difference.
Posted on 4/30/19 at 12:06 pm to tigerpawl
Same bat time, same bat channel.
Posted on 4/30/19 at 12:24 pm to tigerpawl
Are you fricking kidding me? The OT is stupid. It can't figure out PEMDAS.
L1 = 2 * pi * r1
L2 = 2 * pi * r2
r2 = r1 + 1 ft
L2 = 2 * pi * (r1 + 1 ft)
L2 - L1 = [2 * pi * (r1 + 1 ft)] - [2 * pi * r1]
L2 - L1 = (2 * pi) (r1 + 1 ft - r1)
L2 - L1 = (2 * pi) ft
L2 - L1 ~ 6.2 ft
ETA: The savvy among you will notice that the above calculation doesn't ever use the actual radii directly and the only value input is the additional foot of radius...
L1 = 2 * pi * r1
L2 = 2 * pi * r2
r2 = r1 + 1 ft
L2 = 2 * pi * (r1 + 1 ft)
L2 - L1 = [2 * pi * (r1 + 1 ft)] - [2 * pi * r1]
L2 - L1 = (2 * pi) (r1 + 1 ft - r1)
L2 - L1 = (2 * pi) ft
L2 - L1 ~ 6.2 ft
ETA: The savvy among you will notice that the above calculation doesn't ever use the actual radii directly and the only value input is the additional foot of radius...
This post was edited on 4/30/19 at 12:32 pm
Posted on 4/30/19 at 12:24 pm to tigerpawl
Wait, is a geometrist a thing?
Posted on 4/30/19 at 12:26 pm to Slagathor
quote:
Wait, is a geometrist a thing?
Only if the mathematician is uppity.
Posted on 4/30/19 at 12:28 pm to tigerpawl
2 pi feet.
Posted on 4/30/19 at 12:52 pm to beerJeep
6.28 feet
pi(D2-D1)= pi(2) = 6.28 feet
pi(D2-D1)= pi(2) = 6.28 feet
Posted on 4/30/19 at 12:54 pm to tigerpawl
3.14ft
Posted on 4/30/19 at 1:20 pm to tigerpawl
shite... Let's see if I can remember this.
There is 5280 ft in a mile so 25,000 miles is 132,000,000 feet.
So C1 = 132,000,000 R1= C1/2(3.14)
So C2 = 132,000,001 R1= C2/2(3.14)= 21,019108.4?
There is 5280 ft in a mile so 25,000 miles is 132,000,000 feet.
So C1 = 132,000,000 R1= C1/2(3.14)
So C2 = 132,000,001 R1= C2/2(3.14)= 21,019108.4?
Posted on 4/30/19 at 1:26 pm to Thib-a-doe Tiger
quote:
Length of the first string +2pi, Bob
FIFY
Posted on 4/30/19 at 1:33 pm to OweO
Dammit, hotwheels.
Posted on 4/30/19 at 1:39 pm to Jim Rockford
quote:
Earth is flat
You sir are incorrect!
Proof the earth is not flat...
Aside from cats being jerks, clear proof of a round earth (with gravity) as if the earth were flat cats would already have knocked everything over the edge by now.
Posted on 4/30/19 at 1:55 pm to TigerstuckinMS
quote:The 25,000-mile circumference was a head fake. You'll notice it wasn't mentioned in the basketball example.
ETA: The savvy among you will notice that the above calculation doesn't ever use the actual radii directly and the only value input is the additional foot of radius...
This post was edited on 4/30/19 at 2:01 pm
Posted on 4/30/19 at 2:05 pm to TigerstuckinMS
quote:
Are you fricking kidding me? The OT is stupid. It can't figure out PEMDAS.
Apparently you’ve never seen a math thread on the OT before. PEDMAS might as well be rocket surgery to 99.99% of posters.
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