In case of collision what is the equation to final velocity?

Final Velocity= m1v1+m2v2 /(m1+m2)

Overall heat transfer coefficient means

Narvas system

Which of these is surest test of electificat...

Name a test which is used to measure charge?...

Frequecy 50hz Velocity330m/s Dis...

Ampere circutal law

Can someone help me with this question? Ques...

Plz solve this hardest problem of phys...

Question no 7,

Solve the question in image