Is the component perpendicular to the surface on contact of the contact force <span />
A certain amount of Conductivity
Answer:
4523.17365 Pa
Explanation:
m = Mass of plane = 77000 kg
F = Force = Weight = 
g = Acceleration due to gravity = 9.81 m/s²
A = Total area of wings = 167 m²
The pressure difference would be

The pressure difference required to keep the plane aloft is 4523.17365 Pa
Answer:
B. two fewer
Explanation:
Helium has two protons so two protons are released from that nucleus.