A spaceship fires a missile toward a second spaceship at 0.950c; the missile approaches the second ship at 0.750c. Describe how
1 answer:
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Answer:
The minimum thickness of the oil is 77.55 nm
Explanation:
Given:
Refractive index of oil
Refractive index of water
Wavelength of light m
From the equation of thin film interference,
The minimum thickness is given by,
Where ,
thickness
Here we have to find minimum thickness so we use
m
nm
Therefore, the minimum thickness of the oil is 77.55 nm
Answer
speed of the molecules
s₁ = v t
when velocity is doubled
s₂ = (2 v)t
= 2 s₁
they will hit the wall of container two times as often.
the momentum of molecule
p₁ = mvr
p₂ = m(2v)r = 2(mvr)
= 2 p₁
the momentum change is two times as great.
force is change in momentum
Δp = F(Δt)
mv-(-mv) = 2 mv
F α v
therefore average force impart to the wall on each collision is two times
p α v²
here the velocity is doubled it means pressure becomes four times.