Physics, 29.06.2019 20:30 younganastasia1
Test information description instructions multiple attempts this test allows 3 attempts. this is attempt number 1 force completion this test can be saved and resumed later question completion status: 2 points question1 a closed rigid vessel contains 0.4 m3 of air, at an absolute pressure of 300 kpa, and has its temperature of 314 k. it is then heated to 587 k. given that the specific heat capacities of the air are cp = 1005 j/kgk and c-718 jkgk. determine the change of entropy (in kj/k, 3 sig. save an save all answers click save and submit to save and submit. click save all answers to save all ansuwers.
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Physics, 21.06.2019 17:20
If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. what is its vertical displacement (in m) after 6 s?
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Physics, 21.06.2019 18:40
The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80
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Physics, 22.06.2019 11:00
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
Physics, 22.06.2019 13:00
The substances that are necessary for producing of certain hormones and that store and transport vitamins
Answers: 1
Test information description instructions multiple attempts this test allows 3 attempts. this is att...
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