54:08
Exhaled
16.379
4.46%
Suppose a similar experiment was set up to measure changes in air composition immediately before and two days after
twenty potted plants were placed in a clear, sealed aquarium near a window.
02
Percentages of Chemicals in Air
CO2
Before
20.94%
0.03%
After
How would the second row of values in the plant experiment most likely compare to the second row of values in the
original experiment?
Oxygen levels would be higher, but carbon dioxide levels would be lower
Carbon dioxide levels would be higher but oxygen levels would be lower
Oxygen levels would be higher, but carbon dioxide levels would be the same.
Carbon dioxide levels would be higher, but oxygen levels would be the same
Cavan vit

What is the relationship between the wavelength of a wave and it's energy?

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?