There are many forces that make an object move.
· An Unbalanced force acting on an object
· Energy applied to an object.
Answer:
B.The galaxies are moving away from us.
Explanation:
Universe is expanding from the time of Big bank.
AS the universe expand Galaxies get away from each other.Latest studies stay that the acceleration of universe is uncreasing due to Dark Energy.
I notice that the energy how it’s transferred it goes down slowly and the heat waves slowly rise up when conducting air
EM waves travel at the same speed in all settings.
however their wavelength will be different as the frequency is different.
we know, v = f x lambda,
v is determined by the medium
Drag Force = bv^2 = ma; a = g = 9.81 m/s^2
b = mg/v^2 = (0.0023×9.81)/(9.4^2)
b = 0.000255