Nomex and kevlar are polyamides that are unusually tough and flame resistant. what structural feature makes nomex and kevlar different from other polyamides

What is the 77 element on the periodtic table

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d.higher

Brainlest awardhow does smoking and arterial plaques increase the risk of hypertension? (2 points) select one: a. both increase blood volume. b. both decrease blood volume.c. both expand the diameter of the blood vessels. d. both constrict the diameter of the blood vessels.