What is the magnitude of the electric force between charges of 0.26 C and 0.15 C at a separation of 0.83 m ? k=8.99×10^9 N⋅m^2/C^2. Also, If the separation between the charges is increased, does the magnitude of the force increase, decrease, or stay the same?

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

conduction, convection, radiation