Physics, 25.01.2022 02:10 kkneedz1369
A study of the Earth by The National Aeronautics and Space Administration (NASA) determined there were 7.80×1011 tons of carbon stored in living plants on the Earth's surface, at the time of the study. Calculate the mass of carbon stored in these plants in grams. (1 ton equals 907.19 kg)
Answers: 1
Physics, 23.06.2019 21:10, michaelowenmccollum
A50.0 mg sample of an unknown radioactive substance was placed in storage and its mass measured periodically. after 19.7 days, the amount of radioactive substance had decreased to 3.13 mg. what is the half-life of the unknown radioactive substance?
Answers: 1
Physics, 24.06.2019 00:50, boyancecristina
The simply supported beam consists of a w410 × 60 structural steel wide-flange shape [e = 200 gpa; i = 216 × 106 mm4]. for the loading shown, determine the beam deflection at point c. assume p = 69 kn, w = 79 kn/m, lab = lbc = 1.3 m, lde = lcd=1.6 m, ma = 168 kn-m.
Answers: 2
A study of the Earth by The National Aeronautics and Space Administration (NASA) determined there we...
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