The human heart is a powerful and extremely reliable pump. each day it takes in and discharges about 7300 l of blood. assume that the work done by the heart is equal to the work required to lift that amount of blood a height equal to that of the average citizen of atlantic falls, approximately 1.6 m. the density of blood is 1050 kg/m3. what is the heart's power output in watts?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line