Answer: Light of frequency 5 x 1014 HZ liberates electrons with energy 2.3 x 10-19from a certain metallic surface.
Explanation:
In this question force is measured in g cm/s2 so we know that to get the answer we times g by cm/s2
50 × 20 = 1000
The movement of air flows from high pressure to low pressure
This is a binary star system
That would make a cation. If it gained one instead, then it would make an anion.