Can someone define These please?

abrasion
laceration
puncture

What is psychological dimensions? (meaning)

The physician ordered velosef (cephradine) im 50 mg/kg/day in equally divided doses four times a day for a child who weighs 40 pounds. convert pounds to kilograms and then calculate the prescribed dosage. mg every hours

Fiona and thomas are neighbors and have been friends for many years. recently, fiona has started dating someone from her karate class, and now fiona and thomas are experiencing conflict. what is the most likely source of this peer conflict? values information power and structure relationships and roles