What is the relationship between the electric field strength at a point and its distance from the source charge?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

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.