In the frontal lobe you have the broca’s area that is linked to the production of speech
Khim’s brother is six years younger than him. 18 multiplied by 1/3 (0.33) is 5.94 but since no one can exactly be 5.94 years old, round it to 6. The reason that you would multiply is because it makes the number smaller, which is exactly what he problem is asking for. Do the same process with the age of 36 instead of 18.
t = t₀ / 2
Explanation:
In this exercise we must use Newton's second law
F = m a
a = F / m
now we can use kinematics
as in object part of rest (v₀ = 0)
v =a t₀
t₀ = v / a
these results are with the first experiment
now repeat the experiment, but F = 2F₀
a = 2F₀ / m = 2 a₀
v = 2 a₀ t
t = v / 2a₀
t = t₀ / 2
100 minutes
During 25 minutes, it got filled 1/4 more (3/4 - 1/2)
So it would take 100 minutes to completely fill it