To solve this problem we will calculate the total volume of inhaled and exhaled water. From the ideal gas equation we will find the total number of moles of water.
An athlete at high performance inhales 4.0L of air at 1atm and 298K.
The inhaled and exhaled air contain 0.5% and 6.2% by volume of water, respectively.
During inhalation, volume of water taken is
During exhalation, volume of water expelled is
During 40 breathes, total volume of water taken is
During 40 breathes, total volume of water expelled out is
Therefore resultant volume of water expelled out from the lung is
From the body through the lung we have that
Here,
P = Pressure
R= Gas ideal constant
T= Temperature
V = Volume
Replacing,
Therefore the moles of water per minute are expelled from the body through the lungs is 0.373mol/min
Angle turned by the wheel is given by the kinematics as
now here we know that
t = 2.50 seconds
So here total angle that the wheel turn is given as
Speed of the wheel after 2.5 s
now angular deceleration is given as
time taken to stop
now total time is given as
The answer is A. Minutes per gallon, because the independent quantity is the gallons
Answer:
y = 3.159 m
Explanation:
Using the second equation of motion.
s = ut + 0.5at^2 .......1
Since the ball is thrown upward the acceleration due to gravity act against it.
Given:
distance s = y
Initial speed u = 12.0 m/s
Time t = 0.30 s
Acceleration a = -g = -9.8m/s^2
Equation 1 becomes;
y = ut - 0.5at^2
Substituting the given values. We have;
y = 12.0(0.30) - 0.5(9.8 × 0.3^2)
y = 3.6 - 0.441
y = 3.159 m
Answer:
Case Study: General Andrew Jackson: Andrew Jackson's military career spanned several wars including the American Revolution, the Creek War, the War of 1812, and the First Seminole War. After the Creek War, Jackson and the Creek Indians signed the
