Question 1
Two charged particles,
Q1 and
Q2, are a distance
r apart with
Q2 = 5
Q1. Compare the forces they exert on one another when
is the force
Q2 exerts on
Q1 and
is the force
Q1 exerts on
Q2.
◦
= 5
.
◦
=
−5
.
◦
=
.
◦
=
−.
◦
5
=
.
Question 2
Two identical pith balls supported by insulating threads hang side by side and close together, as shown below.
One is positively charged; the other is neutral. We can conclude that
◦
all field lines leaving the positively charged pith ball end on the neutral pith ball.
◦
some of the field lines leaving the positively charged pith ball end on the neutral pith ball.
◦
none of the field lines leaving the positively charged pith ball end on the neutral pith ball.
◦
positive charge is transferred along the field lines until both balls have equal charges.
◦
positive charge is transferred along the field lines until both balls hang along vertical lines.
Thorax side
Finding an unknown side of a triangle
Chuck Close, Stanley II, detail. 1980–81.
Most air filter housings are located on the side of the engine compartment and use flexible rubber ...
Identical Twin
Side view of a jumping spider making a leap