.A rectangular field is 112 m long and 100 m wide. Two roads, each 3 m wide are to be
constructed at the centre of this field, one
is parallel to the length of the field and the
other is parallel to the breadth of the field.
a) area of the two roads.
b) area of the part of the field, not covered
c) cost of constructing the roads at 17 per m.
th
S
Find the:
by the roads.

Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

What will a positive and a negative charge do if they are separated from each other?