Question

A 4.00-g lead bullet is traveling at a speed of 200 m/s when it embeds in a wood post. If we assume that half of the resultant heat energy generated remains with the bullet, what is the increase in temperature of the embedded bullet? (specific heat of lead = 0.0305 kcal/kg⋅°C, 1 kcal = 4 186 J)

Answer 1

. The hotel toimhe courgy of bullet get converted to heat energy of butter and werdpost. Out of her half has gone to beat energy of bet Kinete energy of ballet = { me m= mass of buller - K= 6x4x10x 200 = 4x10 311g 2= speed of belief = 805 - 200m/s K = linche energy of bullep Het wurgy gone to built = ķ - E=0j Heat energy abrabed by bullef = MCAT * C = specific heat of lead = 0.0305 x 41865 = 127.673 5/1996 MCBT=40 SAT=_40 4x10 3 x 122.623 18.325°C. = Increase in tugraher AT= 78.321°C.