Daniellelovee
  • Daniellelovee
Calculate the slope of the line in your graph of the square of the period of the pendulum vs. length of the string [slope = (y2 – y1)/(x2 – x1)]. Galileo figured out the equation that describes the behavior of a pendulum. If you square both sides of the equation, you will find that the slope of the line is related to the acceleration due to gravity (g). Specifically, slope = 42/g. Use your data to calculate g. How does it compare with the accepted value of 9.807 m/s2? @satellite73
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Daniellelovee
  • Daniellelovee
http://assets.openstudy.com/updates/attachments/546a397fe4b001ceb26855de-meg106-1416247717218-screenshot20141117at12.07.16pm.png
Daniellelovee
  • Daniellelovee
http://assets.openstudy.com/updates/attachments/546a397fe4b001ceb26855de-meg106-1416247759457-screenshot20141117at12.07.54pm.png
Daniellelovee
  • Daniellelovee
@Astrophysics

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Astrophysics
  • Astrophysics
What is the equation, and what does your graph represent?
Daniellelovee
  • Daniellelovee
g = 4π² / slope.
Daniellelovee
  • Daniellelovee
my slope?
Astrophysics
  • Astrophysics
No I'm asking, the formula you're testing is \[T =2 \pi \sqrt{\frac{ L }{ g }}\] correct
Daniellelovee
  • Daniellelovee
oh ok yeah and I can also use T² = 4π²L/g
Astrophysics
  • Astrophysics
Ok and what does your graph represent, (y as a function of x) state the variables
Daniellelovee
  • Daniellelovee
thats when I get lost sorry
Astrophysics
  • Astrophysics
Ok no worries, note that we are determining gravity right
Daniellelovee
  • Daniellelovee
yes
Astrophysics
  • Astrophysics
Ok so you gathered that data right in the table?
Daniellelovee
  • Daniellelovee
yes
Astrophysics
  • Astrophysics
Ok cool, so what do the table represent?
Astrophysics
  • Astrophysics
|dw:1449798825807:dw|
Astrophysics
  • Astrophysics
Mhm you don't have errors either eh, I guess it's ok but next time make sure to note the errors!
Daniellelovee
  • Daniellelovee
is the table for the data in the graph
Astrophysics
  • Astrophysics
I know, I mean what does it represent is the first one time and second one length or what
Daniellelovee
  • Daniellelovee
I think I did something wrong..
Daniellelovee
  • Daniellelovee
The values on the right are actually the periods in seconds
Daniellelovee
  • Daniellelovee
@Astrophysics
Astrophysics
  • Astrophysics
Ok so, |dw:1449799418825:dw|
Astrophysics
  • Astrophysics
Are you sure
Astrophysics
  • Astrophysics
Look at your graph
Daniellelovee
  • Daniellelovee
yes im sure
Astrophysics
  • Astrophysics
Think about your equation and slope formula, what are the units of gravity?
Daniellelovee
  • Daniellelovee
g
Astrophysics
  • Astrophysics
What are the units of acceleration due to gravity...
Daniellelovee
  • Daniellelovee
9.8 m/s²
Astrophysics
  • Astrophysics
Ok so can you try to explain your graph to me, it's essential you understand it, and pay attention to the units
Daniellelovee
  • Daniellelovee
To measure the period of the pendulum, you have to swing the pendulum and measure the time it takes to go back and forth.
Astrophysics
  • Astrophysics
I see your graph states square of period as a function of the length string
Daniellelovee
  • Daniellelovee
im so confused right now
Daniellelovee
  • Daniellelovee
im even doubting that the graph is correct of not
Astrophysics
  • Astrophysics
Well if you labelled everything it would make it a whole lot easier
Daniellelovee
  • Daniellelovee
im going to check this over again thank you for your help @Astrophysics
Astrophysics
  • Astrophysics
Hey just try to understand what the graph is saying and what the question is asking, this is not too difficult I think you will be able to figure it out :) if you have any questions feel free to ask

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