What gas would you expect to be in the letter A blank? 1 point
Gas
Percentage by Volume
A
78%
21%
B
Argon
0.93%
Carbon Dioxide
Neon
Helium
Methane
0.036%
0.0018%
0.00052%
0.00015%
0.00011%
Krypton
Hydrogen
0.00005%
oxygen
nitrogen
carbon dioxide
ozone
This is a required question

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.