It doesn't work the same as the other because one is ultraviolet while the other is infrared.
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because the building are weaker and they are most likley to fall
Answer:
1/4
Explanation:
The period of a simple pendulum is:
T = 2π √(L/g)
At half the period:
T/2
= π √(L/g)
= 2π √(L/(4g))
= 2π √((L/4)/g)
So the length would have to be shortened by a factor of 1/4.
