przez NARMEEN AWAN 3 lat temu
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planetary orbits
Moon
Earth
vice-versa
pull
heavenly bodies
neutron
molecules
attract (pull)
repel (push)
protons
repelling
air moves
total weight
plane
drag
disruption
air flow
slowing force
thrust
reduced
stronger
energy
rotor
propeller
forwards
moving force
up
wings
lift
difference
air pressure
top surface
under surface
land
takeoff
fly
uniform motion
Newtons Principia
nature of reality
reaction force
movement
falling
accelerate
direction
matter
velocity
rates
original form
stretched
compressed
pulls
perpendicular force
surface
opposite
time
coefficient of frcition
surfaces
material
air resistance
factors
surface area
objects in motion
speed
kinetic
in motion
slows down
static
at rest
static friction max
force
opposes
sliding
pulling force
rope/string
pulls downwards
weight
gravitational acceleration
9.8m/s/s
local GFS
9.8N/kg [down]
Law of Universal Gravitation