He orbital period of an object is 2 × 107 s and its total radius is 4 × 1010 m

12,560 m/s.

Explanation:

The question is missing:

What is the tangential speed of the satellite?

Tangential speed (Vt) is defined as the length of the arc (s) covered per unit of time (t), that is:

Vt = s/t

The period specifies the time the satellite takes to complete the orbital. The whole circumference has an arc length of 2*π*radius. Replacing into the equation:

Vt = 2*π*4*10^10 m /(2*10^7 s)

Vt = 12,560 m/s

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

- lead + phosphoric acid = hydrogen + lead(ii) phosphate