Answer:
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Explanation:
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Answer:
hello your question is incomplete the options are missing
Determine the resultant velocity for the plane when it is travelling
i) To the east
ii) To the west
answer :i) 270 i
ii) -150 i
Explanation:
velocity of Airplane = 210 m/s
wind velocity = 60 m/s to the east
The resultant velocity for the plane when it is travelling
let the velocity of the wind = V2
velocity of the plane = v1
i) The resultant velocity for the plane when travelling to the east
Vr = V2 i + V1 i
Vr= 60i + 210i = 270i
ii) resultant velocity when the plane is travelling to the west
Vr = - V1 i + V2i
= -210i + 60 i = -150 i
Answer:
The answer to your question is: Oxygen (O) and Selenium (Se)
Explanation:
Elements located in group VIA needs to gain 2 electrons to achieve noble gas electron configuration.
Oxygen (O) is located in group VIA so it needs to gain two electrons to become stable.
Strontium (Sr) is located in group IIA so it needs to lose 2 electrons to become stable.
Sodium (Na) is located in group IA so it needs to lose one electron to become stable.
Selenium (Se) is located in group VIA so it needs to gain 2 electrons to become stable.
Bromine (Br) is located in group VIIA so it needs to gain one electron to become stable.
