If the mass of the book is 50 sliding with acceleration 1.2 m/s ^ 2 then the friction force is

Asample of a gaseous substance changes into a liquid

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Explain the difference in reactivity of the elements based on their electron configurations.