[填空题]
A bullet is fired vertically tmf)+ rvtz(gx6 zf+6fx0dd 0yvdgj3(koetuf n , 2d*7into a 1.40-kg block of wood at rest directly above it. If the bullet has a mass of 29.0 g and a speed of 510m/s how high will the block rise after ,23df kv7*dnote( jugthe bullet becomes embedded in it? m