0, HA and B have different dimensions, then which one is correct
(CPME 200
A
B
(6) A-B
(d) A+B
AB
(b) A/B​

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?