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Physics, 20.08.2019 22:20, sparkyjones02
Practice problems below are three practice problems that will you in completing the activities at the introduc- tory lab. you are more than welcome to try them or even complete them before attending the lab session. there is no preparatory assignment for this laboratory. for the questions that require calculations, remember to express your final answers in the "best estimate – uncertainty" form and include full working and units. 1. find the sum of the following lengths: 102.3 + 0.2 cm, 44.8 +0.2 cm and 5.67 + 0.08 cm, assuming that the measurements are independent. (for general overview, see "sums and differences" in section 1.2; for further details, see appendix section a.4.1.) 3. several readings of the diameter of a sphere vield the following values: 24.75 mm, 24.82 mm, 24.87 mm, 24.79 mm, 24.75mm 24.95 mm, 24.71 mm, 24.81 mm, 24.65 mm, 24.69 mm. calculate the mean radius, the standard deviation of the radius measurements, the uncertainty in the mean radius and report the measured radius with the correct signif- icant figures. (for general overview, see - statistical analysis in large data sets" in section 2; for further details, see appendix sections a.3.1, a.3.3 and a.4. note: you do not need to show working for the standard deviation
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Physics, 22.06.2019 04:50, andrewsaul04
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
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Physics, 22.06.2019 14:40, sherlinejules1
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
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