The Doppler effect is the change in sound or light that occurs whenever there is motion between the source and its observer. The siren of the fire engine has a lower pitch as it moves away because the waves are now spread out causing a lower frequency and a lower pitch. High-frequency sound waves have a higher pitch and higher energy than low-frequency waves.
Answer:
This refers when a spiker quickly strides towards the net before they jump in the air for an attack.
1 is idk
2 is solvent
3 is gamma rays
4 is transmutation
5 is nuclear fission
6 is nuclear fusion
7 is tracer
8 is half life
9 is
10 is strong force
11 is radioactivity
12 is dissociation
13 is unsaturated solution
14 idk
16 is alpha particle
17 is radioactivity
18 is concentration
19 is solubility
20 is saturated solution
21 is dissociation
22 is saturated solution
23 is saturated solution
24 is idk
25 is electrolytes
26 is idk
27 is non electrolytes
28 is concentration
29 is dissociation
30 is idk
Weathering and rock slides
