Two point charges are on the x-axis.  charge q1 = 2.7 uC is at the origin and charge q2 = -4.6 uC is at x = 0.50 m.  Find the magnitude of the electric field a distance of 0.70 m directly below q1.

A car increases it’s speed uniformly from 15.0 m/s to 20.0 m/s in 2.00 s.  What is the acceleration of the car?

A rock is thrown from the edge of a tall cliff with a velocity of 20 m/s at an angle of 40 degrees above the horizontal.  The rock strikes the ground at a horizontal distance of 114 m from the base of the cliff.  How tall is the cliff?

A patient on room air presents with central cyanosis. What is the first thing an RT should recommend?

Which of the following is NOT a hazard or complication of postural drainage therapy?

For which of the following patients would you select a heated humidifier?     1.  Patient receiving mechanical ventilation only     2.  Patient receiving long-term ventilation and Patient receiving mechanical ventilation     3.  Patient receiving oxygen through a bypassed airway and Patient receiving oxygen through a nasal catheter     4.  Patient receiving oxygen through a nasal catheter only

Which of the following airway clearance techniques would you recommend for an 18 year old with cystic fibrosis?

A V/Q imbalance is defined at adequate gas exchange between the alveoli and the pulmonary capillary bed.

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Heat moisture exchangers are mainly used to provide short term heat and humidity to patients receiving mechanical ventilation.