Calculate the magnitude of the electric field at the center of a square 42.5 cm on a side if one corner is occupied by a -38.2 uC charge and the other three are occupied by -27.4 uC charges Express your answer to three significant figures and include the appropriate units. ​

The density of a liquid could be found by using

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.