Physics, 10.09.2021 18:00, laurenppylant
PLEASE HELP ME WITH THIS IF UR GOOD AT PHYSICS
Q 1 . How many significant figures are in the following measurement? 0.0009(1 point)
1
5
4
3
Q 2. Three unique samples are weighed on different scales at separate laboratories across the country. The first has a weight of 31.2 lbs, the second sample weighs 38.02 lbs, while the third measures 45 lbs. How much is the total combined weight of all of these samples?(1 point)
114.22 lbs
110 lbs
114 lbs
114.2 lbs
Q 3. A track coach measures the 100-meter time of a track athlete. The runner completes the distance in 11.5 seconds. If the stopwatch has an uncertainty of 1.7%, what is the amount of uncertainty in the time?(1 point)
(1 point)
11.5 s ± 0.19 s
11.5 s plus or minus 0.19 s
11.5 s ± 0.20 s
11.5 s plus or minus 0.20 s
11.5 s ± 0.1955 s
11.5 s plus or minus 0.1955 s
11.5 s ± 0.196 s
Q 4. The speed of a bullet train is measured to be 312.0 mph ± 3.9 mph. What is the percent uncertainty in this measurement?(1 point)
1.3%
1.2%
1.25%
0.0125%
Answers: 2
Physics, 22.06.2019 18:30, Felici8617
4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.
Answers: 2
PLEASE HELP ME WITH THIS IF UR GOOD AT PHYSICS
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