Three charges are arranged as shown in figure below (a) Find the magnitude and direction of the electrostatic force on the charge at the origin. (b) Determine the electric filed and electric potential at a point P (-0.30 m, -0.10 m). (c) How much work is required to bring a point chare 2 nC from infinity to point P?​

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

What organization and environment is described above?