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a level physics notes on Unit 11- Build or Bust (BLD) AKA oscillations $9.62   Add to cart

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a level physics notes on Unit 11- Build or Bust (BLD) AKA oscillations

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these are my notes on Unit 11- Build or Bust (BLD) AKA oscillations well written and laid out i am predicted an A* in a level physics compatible with edexcel a level or AS level physics students

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  • July 3, 2024
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  • 2023/2024
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,The 1964 Prince William Earthquake
magnitude of 9 2
· .




·
triggered a tsunami which reached Hawaii & Japan
O
139 deaths but most were due to the tsunami

uplifted 11 5m
Land the coast was
by
·
near
.

,
, SEISMIC WAVES
↳ elastic wave
generated by an
eg an earthquake
imprise .
they
travel at several km/S , they provide understanding of the Earth


P-WAVES (primary)
·


longitudinal , pass through solids (liquids

&
·
faster than 5-waves

low
frequency INFRASOUND : < 20Hz
· -




Pass through Mantle (solid)
S-WAVES (secondary) & outer core (liquid)
transverse pass ↓ inner core (solid)
only through solids
·

,


slower than p-waves ↳

·




cannot pass through liquid outer core



This is because liquids cannot
sustaini shear stresses
(transverse)




S
& arrives 10s later than P . V of P-wave is 8km/s
V of S-wave is 4km/S
disp
+s
=


=
+p + 10

ds
%
dp =



Vpxtp =
Vs =
t


8000m/s x(p = 4000 X +s
8000 x Xp = 4000x(tp + 10)

80004p = 4000 +p + 40000


4000
Xp = 10s

d = 5xt
=
8km x I0s
= 80km

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