Urgent! Which is not an example of work? Question 2 options: pushing a box across the floor picking up a box off the floor raising a barbell over your head trying to push a rock that never moves

Apossible explanation for a set of facts that can be tested by further investigation is called

Observations show that interstellar clouds can have almost any shape and

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,?