Question

Two point charges are placed on the x axis as follows: Charge q1= +4.00 nC is located at x= 0.200 m, and charge q2= +5.00nC is at x= -0.300 m. What are the magnitude and direction of the net force exerted by these two charges on a negative point charge q3= -0.600 nC placed at the origin?

Answer 1

Use Coulomb's law and add the two forces on q3 as vectors. Charges q1 and q2 pull q3 in opposite directions, because they are on opposite sides of q3. .

Answer 2

A heat-conducting rod consists of an aluminum section, 0.20 m long, and a copper section, long. Both sections have a cross-sectional area of The aluminum end of the rod is maintained at a temperature of , while the copper end is maintained at What is the temperature at the point where the aluminum and copper sections meet? The thermal conductivity of aluminum is 205 W/m ∙ K, and of copper is 385 W/m ∙ K.

Answer 3

please help me to solve the questiion below

Answer 4

A point charge q_{1} = 4.00nC is placed at the origin, and a second point charge q_{2} = - 3.00 nC is placed on the x-axis at chi = 20.0 cm. A third point charge q_{3} = 2.00 nC is to be placed on the x-axis between q_{1} and q_{2} . Let the potential energy of the three charges be zero when they are infinitely far apart.

a) what is the potential energy of the system of the three charges if q_{3} is placed at x = 10.0 cm? b) where should q_{3} be placed to make the potential energy of the system equal to zero?