Answers: 2
Physics, 21.06.2019 13:30
An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c.take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?
Answers: 1
Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
Answers: 1
Physics, 22.06.2019 20:50
An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)
Answers: 1
Physics, 23.06.2019 03:50
Which stable element is used to determine the age of volcanic rock? a- argon b- carbon-14 c- potassium d- carbon-12
Answers: 2
Aleaf falls through the air, floating as it falls. air resistance is visibly affecting the leaf. whi...
Mathematics, 16.12.2019 02:31
Biology, 16.12.2019 02:31
Mathematics, 16.12.2019 02:31
History, 16.12.2019 02:31
Business, 16.12.2019 02:31
Mathematics, 16.12.2019 02:31
History, 16.12.2019 02:31
Mathematics, 16.12.2019 02:31
Biology, 16.12.2019 02:31
Social Studies, 16.12.2019 02:31
Mathematics, 16.12.2019 02:31
History, 16.12.2019 02:31