The answer is that it showed the scientist that on the area of the mantle from the subduction zones the slabs of the ocean floor remains or returns after such tectonic movement or earthquakes.
That distance is the definition of 1 AU.
Explanation:
if two individual forces are of equal magnitude and opposite direction, then the force is said to be balanced. when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
The frame of the reference for a plane equals to 310.7miles
Answer:
a) 1.57, 1.61
B 1.91x10^8m/s , 1.86 x 10^8m/s
Explanation:
Ok we know that refractive index is given as = sin i/ sin r
And i is the angle of incidence in the air and r is angle of refraction in the glass,
So we can sa y
for red light n = sin75/sin38.1 = 1.57
and for violet, n =sin75/sin36.7 = 1.61
So
(a) 1.57, 1.61
(b) we know that
Refractive index n = c/v,
where c is speed off light in air and v is speed of light in glass,
So , v = c/n
for red light v = c/1.57 = 1.91 x 10^8 m/s
and for violet light, v = c/1.61 =
1.86 x 10^8 m/s