The description of the question provided above points out to the famous Big Bang Theory. In addition, this theory is among the most accepted by cosmologists because it fits like a glove to the phenomenon the universe is experiencing right now: it is expanding and distances between celestial bodies are getting farther and farther.
Answer:
(a). The acceleration due to gravity at the surface of Titania is 0.37 m/s².
(b). The average density of Titania is 1656.47 kg/m³
Explanation:
Given that,
Radius of Titania 
Mass of Titania 
We need to calculate the acceleration due to gravity at the surface of Titania
Using formula of the acceleration due to gravity on earth

The acceleration due to gravity on Titania

Put the value into the formula





The acceleration due to gravity at the surface of Titania is 0.37 m/s².
(b). We assume Titania is a sphere
The average density of the earth is 5500 kg/m³.
We need to calculate the average density of Titania
Using formula of density






The average density of Titania is 1656.47 kg/m³
Hence, (a). The acceleration due to gravity at the surface of Titania is 0.37 m/s².
(b). The average density of Titania is 1656.47 kg/m³
Kinetic energy is your answer
Answer:
Range will be 5707.364 m
Explanation:
We have given initial velocity of projectile u = 355 m/sec
Angle of projection = 68.4°
Acceleration due to gravity 
Horizontal range is given by 
It is given that range is shorten by 35.1%
So range will be