Engineering, 15.10.2020 01:01, saucyboyFredo
On 20 August 1977, NASA launched Voyager 2. It now is beyond the edge of the solar
system, in an area known as the Heliosheath. As of 9:00 PM, on 29 September 2020, it
was 11 607 005 809 miles from the earth. We still are communicating with it, though
takes over 17 hours for a radio signal from earth (traveling at the speed of light - this is
so cool!) to reach the craft. It used to be the farthest man-made object from the earth,
but was surpassed by its sister craft, Voyager 1. Incredibly, five of Voyager 2's eleven
scientific instruments still are operating, collecting data, and transmitting it back to earth.
All of the hydrazine that it originally contained to use for thruster operation has been
consumed. Currently, the satellite would weigh 1592 lb if it were on earth. Determine the
force of attraction the earth exerted on Voyager 2 on the 2020 date mentioned previously.
Answers: 3
Engineering, 03.07.2019 14:10, BardiFan
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
Engineering, 03.07.2019 23:20, abbz13
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
Answers: 3
Engineering, 04.07.2019 18:10, ayoismeisjjjjuan
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
Answers: 1
On 20 August 1977, NASA launched Voyager 2. It now is beyond the edge of the solar
system, in an ar...
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