20 points come an get it ppl! : d
pretend you are an electron in a copper wire which is being used to connect a battery to a flashlight bulb. because this circuit uses a(n) current, you as the electron in the wire will
a)
alternating, move first one way then the other.
b)
direct, move first one way then the other.
c)
alternating, move only in one direction.
d)
direct, move only in one direction.

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

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,?