Draw the net electric field at the center of: A line segment of length 1.0 m with a +1-C charge and a –1-C charge at its endpoints;

An equilateral triangle of side length 1.0 m with alternating +1-C, –1-C, and +1-C charges placed at its vertices;

A square of side length 1.0 m with alternating +1-C, –1-C, +1-C, and –1-C charges placed at its vertices

Calculate the magnitude and determine the direction of the net electric field at the center of each of the above configurations.​

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

What is friction? how does it affect the motion of an object?