A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s2

Anonymous User Physics Laws of Motion and Friction 25 Mar, 2020 1 Answer 59 views




In a multi­electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields?

(i)  n=1,l=0,m=0

(ii)  n=2,l=0,m=0

(iii)  n=2,l=1,m=1

(iv)  n=3,l=2,m=1

(v)  n=3,l=2,m=0

Anonymous User Chemistry Structure of Atom 24 Mar, 2020 1 Answer 53 views