Question

please help me this please​

Answer 1

Answer:

1. astronomical unit

2. potential energy

3. speedometer

4. m/s

5. odometer

6. atom

7. velocity

8. J.J Thomson.

Answer 2

Answer:

1) astronomical unit.

2) It is expressed generally in thousand hectare metre or million cubic metres (Mm3).

3)Speedometer

4)metre per second

5)odometer

6)atoms

7) velocity.

8)JJ Thomson