What is the difference between velocity and acceleration? A Velocity describes an object's position and acceleration describes how fast it moves
B Velocity is how fast an object moves and acceleration is the rate of change in velocity
C Velocity is used to determine the magnitude of force acting on an object, and acceleration isn't
Velocity is a time dependent property of an object, while acceleration is not

Blood transfusions were rarely done and often fatal; they were outlawed until the nineteenth century.

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.