روحهـ
10-11-2009, 12:50 AM
السلام عليكم أخوتي
جئت لكم طالبة لشرح مسألتين بحلولهم
لأني لم أفهم ^^
الأولى:
. (a) Two protons in a molecule are separated by 3.80 &
10"10 m. Find the electric force exerted by one proton on
the other. (b) How does the magnitude of this force compare
to the magnitude of the gravitational force between
the two protons? (c) What If? What must be the chargeto-
mass ratio of a particle if the magnitude of the gravitational
force between two of these particles equals the
magnitude of electric force between them?
والثانية:
9. Two identical conducting small spheres are placed with their
centers 0.300 m apart. One is given a charge of 12.0 nC
and the other a charge of "18.0 nC. (a) Find the electric
force exerted by one sphere on the other. (b) What If?
The spheres are connected by a conducting wire. Find
the electric force between the two after they have come to
equilibrium.
اتمنى افادتي عآجلا
وشكرا
جئت لكم طالبة لشرح مسألتين بحلولهم
لأني لم أفهم ^^
الأولى:
. (a) Two protons in a molecule are separated by 3.80 &
10"10 m. Find the electric force exerted by one proton on
the other. (b) How does the magnitude of this force compare
to the magnitude of the gravitational force between
the two protons? (c) What If? What must be the chargeto-
mass ratio of a particle if the magnitude of the gravitational
force between two of these particles equals the
magnitude of electric force between them?
والثانية:
9. Two identical conducting small spheres are placed with their
centers 0.300 m apart. One is given a charge of 12.0 nC
and the other a charge of "18.0 nC. (a) Find the electric
force exerted by one sphere on the other. (b) What If?
The spheres are connected by a conducting wire. Find
the electric force between the two after they have come to
equilibrium.
اتمنى افادتي عآجلا
وشكرا