Physics, 01.11.2019 02:31, treestump090
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. the astronaut begins a space walk at rest, with a completely filled propulsion unit. during the space walk, the unit ejects some gas with a velocity of 32 m/s. as a result, the astronaut recoils with a velocity of 0.39 m/s. after the gas is ejected, the mass of the astronaut (now wearing a partially empty propulsion unit) is 165 kg. what percentage of the gas was ejected from the completely filled propulsion unit?
Answers: 2
Physics, 22.06.2019 19:40, flore9584
Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.
Answers: 2
Physics, 23.06.2019 02:20, alexandroperez13
Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?
Answers: 2
Physics, 23.06.2019 03:30, ghari112345
Ineed with my physics homework i can’t find it on google
Answers: 3
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to...
History, 20.10.2019 09:20