Apatient has a rare genetic disorder that causes their heart to not "squeeze" well. this causes fluid to back up in the lungs, making it difficult for the patient to breath. doctors prescribe "water pills" which cause the patient to urinate extra fluid. which answer best summarizes the main body systems described in this example?
a. nervous, muscular, and skeletal systems
b. circulatory, respiratory, and excretory systems
c. circulatory, excretory, and integumentary systems

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )