Based on the clue 'a rockets thrust may be measured in units named fo...', what is the answer?

What is referred to by 'a rock'? Based on the clue 'a rocket launched at the equator needs less fuel ...', what is the answer? Based on the clue 'a rocket lifting off is an example of the third la...', what is the answer? Based on the clue 'a rocket scientist in training you interned at thi...', what is the answer? What is referred to by 'a rocky life'? What is associated with: a rocky relationship with exotic dancer fanne foxe ended this powerful congressmans career in… What is associated with: a rod is truly in trouble in this time traveling twain text from 1889? What is referred to by 'a rod'?