What magnitude charge creates a 1.0 n/cn/c electric field at a point 1.0 mm away?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.