answer all 3 problems please, automatic thumbs up if correct:)

You have a lightweight spring whose unstretched length is 4.0 cm. First, you attach one end of the spring to the ceiling and hang a 3.0g mass from it. This stretches the spring to a length of What is the magnitude of the charge (in nC ) on each bead? 5.0cm. You then attach two small plastic beads to the opposite ends of the spring, lay the spring on a frictionless table, and give Express your answer using two significant figures. each plastic bead the same charge. This stretches the spring to a length of 4.7cm. x Incorrect; Try Again; 4 attempts remaining A smart phone charger delivers charge to the phone, in the form of electrons, at a rate of 0.75C/s. How many electrons are delivered to the phone during 44min of charging? N= electrons Incorrect; Try Again; 3 attempts remaining What magnitude charge creates a 5.20N/C electric field at a point 1.50m away? Express your answer with the appropriate units