mot vat co trong luong rieng la26000N/m3. Treo vat vao mot luc ke roi nhung vat ngap trong nuoc luc ke chi 150N. hoi neu treo vat o ngoai khong khi thi luc ke chi bao nhieu ? cho biet trong luong rieng cua nuoc la 10000N/m3
you have to like jerk the itouch or iPhone the way the arrow says arrow-> = jerk it right<- = jerk it left ^ I = jerk it forward like your hitting a drum v