Forces and Motion
(I fell asleep during my lesson and have no clue what to put, if someone could put a small paragraph to answer the question that would be amazing!)
In space, astronauts donât have gravity to keep them in place. That makes doing even simple tasks difficult. Gene Cernan was the first astronaut who worked on a task outside a spaceship. He said of the experience, âEvery time Iâd push or turn a valve, it would turn my entire body at zero gravity. I had nothing to hold on to.â As he worked, Gene Cernanâs heart rate and temperature went so high that his fellow astronauts worried that he wouldnât survive.
Think about routine tasks that astronauts might need to do inside and outside a spaceship. Choose several tasks, and describe the features the ship and spacesuits should have to account for zero gravity as the astronaut completes the task. Use Newtonâs laws of motion in your analysis.
Thanks!
Answers: 2
Physics, 22.06.2019 22:00
Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.
Answers: 2
Physics, 23.06.2019 12:30
Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity b mass is not dependent on gravity and weight is dependent on gravity c mass is not dependent on gravity and wight is dependent on gravity d mass is dependent on gravity and weight is not dependent on gravity
Answers: 2
Physics, 23.06.2019 16:00
Acommon procedure for measuring the velocity of an airstream involves the insertion of an electrically heated wire (called a hot-wire anemometer) into the airflow, with the axis of the wire oriented perpendicular to the flow direction. the electrical energy dissipated in the wire is assumed to be transferred to the air by forced convection. hence, for a prescribed electrical power, the temperature of the wire depends on the convection coefficient, which, in turn, depends on the velocity of the air. consider a wire of length l = 20 mm and diameter d = 0.5 mm, for which a calibration of the form v = 6.25 Äâ 10ââ5 h2 has been determined. the velocity v and the convection coefficient h have units of m/s and w/m2 ââšâŚ k, respectively. in an application involving air at a temperature of t⪠= 25â°c, the surface temperature of the anemometer is maintained at ts = 75â°c with a voltage drop of 5 v and an electric current of 0.1 a. what is the velocity of the air?
Answers: 1
Physics, 23.06.2019 16:00
At the point of fission, a nucleus of ^235 u that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.90 x 10 ^-15m. what is the magnitude of the repulsive force pushing these two spheres apart
Answers: 1
Forces and Motion
(I fell asleep during my lesson and have no clue what to put, if someone could pu...
Mathematics, 12.12.2019 22:31
History, 12.12.2019 22:31
Mathematics, 12.12.2019 22:31
Advanced Placement (AP), 12.12.2019 22:31
Social Studies, 12.12.2019 22:31
Biology, 12.12.2019 22:31
Social Studies, 12.12.2019 22:31