That they travel in a vacuum. All other waves require a medium in which they wave.
<span>The majority of the asteroids in our solar system are found
in the space between the orbits of Mars and Jupiter. (B)</span>
Answer:
a = 9.94 m/s²
Explanation:
given,
density at center= 1.6 x 10⁴ kg/m³
density at the surface = 2100 Kg/m³
volume mass density as function of distance
r is the radius of the spherical shell
dr is the thickness
volume of shell
mass of shell
now,
integrating both side
we know,
a = 9.94 m/s²
The velocity is 4374.45 m/s.
I got the answer by using v=d/t.
20,000meters / 25min= 4,374.45 m/s.