The efficacy of these projectiles at harming is explained by the extremely controversial “hydrostatic shock” mechanism. For 10 points each:
[10e] Name these projectiles propelled using smokeless powder whose performance is often studied using ballistic gel.
ANSWER: bullets [or rounds; or ammo; or ammunition]
[10m] The effect that bullets have on their targets is studied in a subfield of ballistics described by this adjective. A quantity described by this adjective is derived by setting weight equal to one-half drag coefficient times area times velocity squared.
ANSWER: terminal [accept terminal ballistics; accept terminal velocity]
[10h] Very-low-drag bullets are often given a nose cone of this shape to minimize the effect of air resistance. A supersonic body with this profile has the minimum drag for any given value of volume and length.
ANSWER: Sears–Haack body [or Sears–Haack profile; prompt on SH body or SH profile]
<GC, Physics>