Question

किसी वस्तु के संवेग को तिगुना करने से उसकी गतिज ऊर्जा
(क) दोगुनी हो जायेगी
(ख) चौगुनी हो जायेगी
(ग) नौगुनी हो जायेगी
(घ) तिगुनी हो जायेगी

Answer 1

Answer:

At N.T.P. 2.8 ltr of oxygen were mixed with 19.6 litres of hydrogen .calculate the increasr in entropy

Answer 2

Answer:

9 गुनी हो जाएगी

Explanation:

if the velocity of body is triple then then kinetic energy become 9 times of initial

Let initial velocity be v

final velocity = 3v

mass of body = m

initial kinetic energy = mv^2/2

final kinetic energy = 9mv^2/2

initial kE/final KE = 1/9

initial KE = 9Final KE