A cylindrical container with a 40-cm height and a 2.0-cm diameter holds helium gas, which has density 0.1785 kg/m3. A piston on one side of the container moves inwards until the helium’s density is 0.22 kg/m3. What is the new height of the cylinder?

A cylindrical container with a 50-cm height and a 2.0-cm diameter contains helium gas, which has density 0.1785 kg/m3. A piston on one side of the container moves inwards until the helium’s density is 0.22 kg/m3. What is the new height of the cylinder?

Firefighters connect a fire hose to a hydrant and lift the other end of the hose into the air to attack a fire in an upper floor. In the ground just below the hydrant the gauge water pressure is 148 kPa, the pipe has a diameter of 6.0 cm, and the volume flow rate through the pipe is 0.04 m3/s. If the gauge water pressure is zero at the high end of the hose, which has a diameter of 5.0 cm, to what height did the firefighters lift the hose?

Jack, a 38 yr old male with a resting HR of 73 bpm, is performing a submaximal exercise test at your facility today. Using the Gellish et al. equation, calculate the submaximal heart rate you will use for test termination.

Which of the following is NOT considered a “field test” of cardiorespiratory fitness?

What is the rhythm depicted in this ECG?  

The procedures for the YMCA Cycle Ergometer test 

This wave identified in the brackets represents which of the following?

Which of the answers best explains pre-excitation syndromes?

An African American woman noticed some bruises on her newborn girl’s buttocks. She asks the nurse why her daughter is bruised. The nurse explains that these marks are called: