Answer:
The radius of orbit=
Explanation:
We are given that
Orbital speed=
m/s
We have to find the radius of orbit of spacecraft.
We know that
Gravitational constant=
Mass of earth=
Orbital speed=
Where G= Gravitational constant
M=Mass of earth
r=Radius of orbit
Substitute the values in the formula
Squaring on both sides
Hence, the radius of orbit=
The correct answer for the question that is being presented above is this one: "<span>c. Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun."</span>
Here are the following choices:
a. Planets orbit in elliptical patterns; the bigger the planet, the more gravitational pull; a planet's gravitational pull is stronger or weaker depending on its distance from the Sun.
b. A planet's orbit covers equal distances in equal amounts of time; the speed of a planet's orbit depends on its distance from the Sun; the bigger the planet, the slower it moves.
c. Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun.
The answer is A. A positive particle inside the nucleus
