How to Use "attainable" with Example Sentences

1. Attainable : I am a firm believer that nothing is impossible to a willing heart .
2. As the cost of sensors drops , creating an internet of things becomes more attainable .
3. Those are all attainable goals .
4. If the solutions are so attainable , why haven 't we reached them already ?
5. He prefers to promote " computer fluency , " attainable without assignments in programming .