To perform an accurate assessment of heart rate, the examiner can do which of the following? select all that apply
a. count the radial pulse for 30 seconds, if the pulse is regular, and multiply by two.
b. if irregular, auscultate the heart and count beats for 1 minute.
c. count the radial pulse for 2 full minutes if the pulse is irregular.
d. count the radial pulse for 15 seconds, if the pulse is regular, and multiple by 4.

What does the law of conservation of mass state?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.