It has been suggested, and not facetiously, that life might have originated on mars and been carried to earth when a meteor hit mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. astronomers know that many martian rocks have come to earth this way. one objection to this idea is that microbes would have to undergo an enormous, lethal acceleration during the impact. let us investigate how large such an acceleration might be. to escape mars, rock fragments would have to reach its escape velocity of 5.0 km/s, and this would most likely happen over a distance of about 4.0m during the impact.
what would be the acceleration, in m/s, of such a rock fragment?
Answers: 3
Physics, 22.06.2019 02:30, estrellagutierrez12
Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic
Answers: 1
Physics, 22.06.2019 06:00, ayoismeisalex
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marblesā motions be changed? ?
Answers: 1
Physics, 22.06.2019 09:30, gobbler80
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( Ļ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s. t.p.?
Answers: 2
Physics, 22.06.2019 13:50, demitae8839
9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.
Answers: 1
It has been suggested, and not facetiously, that life might have originated on mars and been carried...
Chemistry, 15.02.2020 04:01