Please answer this fast and here only​

1) a) , b) , c) .

2) a) , b) , c) .

Explanation:

The scale factor is defined by the following expression:

(1)

Where:

- Scale factor.

- Scale distance, in centimetres.

- Real distance, in centimetres.

1) If we know that , , and , then the actual distances in metres are:

2) If we know that , , and , then the actual distance in kilometres is:

heat released by collision processes during accretion, and heat from decay of radioactive elements

explanation: