Answer:
to create the particle the speed must be greater than 2.25 10⁸ m / s
Explanation:
In this exercise we must use the relation of the index of refraction with the speed of light in a vacuum and a material medium
n = c / v
where c is the speed of light in the vacuum, v the speed of light in the material medium and n the ratio of rafraccio
in this case they give us that the medium matter water them that has a refractive index of
n = 1,333
we clear
v = c / n
let's calculate
v = 3 10⁸ / 1,333
v = 2.25 10⁸ m / s
to create the particle the speed must be greater than 2.25 10⁸ m / s
<span>With a half-life of 700 million years, U-235 would have had twice as much mass at a time 700 MYA. This would have put the mass at 100kg at that time. Going back another 50 million years would be (50/700) or 1/14 of the half-life, or (1/2 * 1/14), or 1/28 of the total mass. 1/28 of 100kg is 3.57kg, so the amount present at the 750MYA mark would be approximately 103.57kg of U-235.</span>
Answer:
d = Δv(t2-t1)
Explanation:
Speed is defined as the change of displacement with respect to time. It is expressed as shown;
Speed = change in displacement/change in time
Δv = d/Δt
d = Δv*Δt
d = ΔvΔt
Δt = t2-t1
d = Δv(t2-t1)
Δv is the change in rate of speed
Δt = change in time
The correct expression for the displacement of the car during this motion is d = Δv(t2-t1)
-3 m/s
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per min
oh I think 8m/s to 3m/s to 0m/s
idk probably -0.08
