Which type of material does not transfer heat well? a. a thermal conductor, such as helium b. a thermal insulator, such as copper c. a thermal conductor, such as copper d. thermal insulator, such as helium

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?