Answer:
Wegener first thought of this idea by noticing that the different large landmasses of the Earth almost fit together like a jigsaw puzzle. The continental shelf of the Americas fits closely to Africa and Europe, and other continents showed the same trend. Wegner also analyzed both sides of the Atlantic Ocean for rock type, geological structures and fossils and noticed that there was a significant similarity between matching sides of the continents, especially in fossil plants.
"They have learned the precise depths where the boundaries between the earth's layers are located" is the one among the following choices given in the question that scientists have <span>learned from studying seismic waves that travel through earth’s interior. The correct option among all the options given is option "B". </span>
Answer:
(a): The cyclist is behind the car.
(b): The speed of the car are Vf= 31.97 m/s.
Explanation:
f= 440 Hz
f'= 415 Hz
Vo= 1/3 Vf
Vf= ?
V= 343.2 m/s
f'= f* ( (V-(-Vo) / (V-(-Vf) )
clearing Vf
:
Vf= 31.97 m/s
Vo= 10.65 m/s
