Aclosed, rigid tank having a volume of 0.1 m3 contains 0.7 kg of n2 and 1.1 kg of co2 at 27oc. determine: (a) the analysis of the mixture in terms of mass fraction; (b) the analysis of the mixture in terms of mole fractions; (c) the partial pressure of each component, in bar; (d) the mixture pressure, in bar. (e) the heat transfer, in kj, required to bring the mixture to 127oc. (f) the entropy change of the mixture for the process of part (e) in kj/k.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign