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Physics, 08.02.2021 02:00 costel8532
A student measures the width of an object several times and records the following data: 2.3 cm, 2.4 cm, 2.2 cm,
2.3 cm, 2.3 cm, 2.2 cm, and 2.8 cm. He decides to represent his data the following way:
2.3 + 2.4 + 2.2 + 2.3 + 2.3 + 2.2 + 2.8 = 16.5
16.5 ÷ 7 = 2.357 cm
(2.8 – 2.2) ÷ 2 = 0.3 cm
Therefore, the average value is 2.4 ± 0.3 cm. A teacher tells the student that his report should read 2.3 ± 0.1 cm.
How did the teacher get this result and what type of error did the student commit?
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Answers: 3
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Physics, 22.06.2019 17:30, RegencySlayer5304
Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?
Answers: 2
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A student measures the width of an object several times and records the following data: 2.3 cm, 2.4...
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