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Re: Critical Assumptions

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Submitted By jukell2
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Write-Up for Lab 11.2: Popper Physics
SCI121 Week 4

Notes: To figure out the average height for the table below, add up the three heights and divide by 3. To figure out the average time add the 4 time measurements and divide by 4.

Table 1: Popper physics data

|Trial Number |Maximum Height (m) |
|1 |1.1 |
|2 |1 .3 |
|3 |1 .32 |
|Average: |1 .24 |
|Trial Number |Time in Air (s) |
|1 |0 .90 |
|2 |1 .18 |
|3 |0 .97 |
|4 |1 .03 |
|Average: |1 .02 |

Questions:

1. What is the gravitational potential energy your popper has at its maximum height you measured? Use g = 9.8 m/s2, and a mass of 0.01 kg.

Note: For question 1, use the equation for Potential Energy listed below; your potential energy is equal to 0.01 kg times 9.8 m/sec squared times the average height (in meters) The answer is in the units of joules.

PE = mgh = PE mgh (0 .01 kg (9 .8 m /s2 (1 .24 m
PE 0 .12152 Nm or 0 .12152 Joules

2. Use the following kinematics equation

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