Find the average acceleration of a northbound subway train that slows from 12 m/s to 9.6 m/s in 0.9 s
2.7 m/s
-2.7 m/s
2.7 m/s2
-2.7 m/s2

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by