Lemaitre (based on hubble's observations) was the first to suggest the a) oscillating universe theory b) inflation theory c) steady state theory d) big bang theory !

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Which is not true about oxygen-17 and oxygen-18?

The radius of an atom is closest in size to a