Answer:
b 43 kg
Explanation:
mass doesn't differ from place to place.
but the weight may
Answer:
The escape speed on the other planet is V
Explanation:
Escape velocity V = √2GM/R where M = mass of planet and R = radius of planet. G = gravitational constant
Let V₁ and V₂ be the escape speeds on planet one and two respectively.
if V₁ = √2GM₁/R₁ and V₂ = √2GM₂/R₂ and M₂ = 2M₁ and R₂ = 2R₁ (since it is twice the size of the first planet)
V₂ = √2GM₂/R₂ = V₂ = √(2G × 2M₁/2R₁) = √2GM₁/R₁ = V₁ = V
So the escape speed on the other planet is V
4.6 billion years ago
The solar system is a pretty busy place. It's got all kinds of planets, moons, asteroids, and comets zipping around our Sun. But how did this busy stellar neighborhood come to be? Our story starts about 4.6 billion years ago, with a wispy cloud of stellar dust.