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

Which of the following statement is false

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.