subject
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.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:20
Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
question
Engineering, 04.07.2019 19:10
Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.
Answers: 2
question
Engineering, 06.07.2019 04:10
Consider a power plant with water as the working fluid that operates on an ideal rankine cycle. it has a net power output of 45mw. superheated steam enters the turbine at 7mpa and 500°c (h=3411.4 kj/kg; s=6.8 kj/kg k) and is cooled in the condenser at a pressure of 10 kpa by running cooling water from a lake through the tubes of the condenser at a rate of 2000 kg/s. (a) show the cycle on a t-s diagram (a right schematic is fine - you do not need to calculate the temperatures at each point); (b)-determine the work done by the turbine and the pump in kj/kg; (c)-the mass flow rate of water used by the power plant; (d)-the thermal efficiency of the cycle; (e)-the temperature rise of the cooling water. assume the cooling water is incompressible with cp 4.18 kj/kg°c.
Answers: 3
question
Engineering, 06.07.2019 04:10
Aheat pump using refrigerant-134a heats a house by using underground water at 8°c as the heat source. the house is losing heat at a rate of 60,000 kj/h. the refrigerant enters the compressor at 280 kpa and 0°c, and it leaves at 1 mpa and 60°c. the refrigerant exits the condenser at 30°c. determine: (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used instead of a heat pump
Answers: 2
You know the right answer?
On 20 August 1977, NASA launched Voyager 2. It now is beyond the edge of the solar system, in an ar...
Questions
question
Mathematics, 26.10.2020 21:40
question
Computers and Technology, 26.10.2020 21:40
question
Mathematics, 26.10.2020 21:40
question
Mathematics, 26.10.2020 21:40
Questions on the website: 13722360