[1 point] A tennis ball moving to the right has a head-on co…

[1 point] A tennis ball moving to the right has a head-on collision with a second ball of equal mass moving to the right at a slower speed. Assume that the collision is perfectly elastic. Which of the following statements is true? Momentum is conserved. Kinetic Energy is conserved. Total energy is conserved.

A patient with chronic obstructive pulmonary disease (COPD)…

A patient with chronic obstructive pulmonary disease (COPD) is receiving oxygen therapy via a Venturi mask. The physician orders an FiO₂ of 24%. The nurse assesses that the Venturi mask is currently set to deliver an FiO₂ of 40%. What is the most appropriate nursing action?