Physics, 24.10.2019 20:43 ababot8339
The scale height of an atmosphere is a measure of how tightly a planet holds onto its atmospheric gases. this is a very useful concept because it balances the atmosphere's thermal energy of expansion against gravity's compression. as a rule of thumb, planets with larger scale heights struggle more to hold onto their atmospheres than planets with smaller scale heights. the scale height of an atmosphere can be computed as h = kt/g where k is a measure of the energy density of the atmosphere (which depends upon the average molecular mass of the atmosphere) expressed in units of j/kg k, t is the planet's surface temperature in units of k, and g is the gravitational acceleration at the planet's surface in units of m/s2. (note that when the calculation is performed in these units, the resultant scale height is measured in meters. often, we find it more convenient to convert the scale height into units of kilometers.) venus has an energy density k = 191.7 j/kg k, a surface temperature t = 750 k and a surface gravitational acceleration g = 8.87 m/s2. what is the scale height of venus in units of kilometers?
Answers: 3
Physics, 21.06.2019 16:00
Study the diagram showing the range of temperature in the earth’s layers. which temperature most likely corresponds to the asthenosphere? 1,613°c 2,521°c 3,628°c 6,217°c
Answers: 2
Physics, 22.06.2019 02:00
Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?
Answers: 3
Physics, 22.06.2019 10:00
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
Physics, 22.06.2019 12:30
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
The scale height of an atmosphere is a measure of how tightly a planet holds onto its atmospheric ga...
Physics, 02.11.2019 17:42
Chemistry, 02.11.2019 17:42
History, 02.11.2019 17:42
History, 02.11.2019 17:42
Mathematics, 02.11.2019 17:42
Mathematics, 02.11.2019 17:42
Mathematics, 02.11.2019 17:42
Business, 02.11.2019 17:42
Health, 02.11.2019 17:42
Social Studies, 02.11.2019 17:42
Mathematics, 02.11.2019 17:42
English, 02.11.2019 17:42