Calculate angular momentum to Neptune about the sun. Given, mass of neptune `= 10^(12) m` and period of revolution around the sun` = 5 xx 10^(9)s`.

Explanation

To calculate the angular momentum of Neptune about the Sun, we can follow these steps:

### Step 1: Understand the formula for angular momentum
The angular momentum \( L \) of an object moving in a circular path is given by the formula:
\[ L = r \times p \]
where \( r \) is the radius (distance from the Sun to Neptune) and \( p \) is the linear momentum of Neptune. The linear momentum \( p \) can be expressed as:
...