Consider four objects a, b,c and d if a is negative charged and b and c qttract a but repel each other what is the charge on b and c?

What is hidden during a lunar eclipse? isn't the moon hidden?

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?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline