Imagine you are making Kool Aid. Kool Aid comes in packets. The powder inside the packets is made up of very small particles. The directions say the water should be stirred when the Kool Aid is aided. Your mother says that you should heat the water, because that will help to dissolve the sugar that you must add next. Using your knowledge of how things dissolve, explain why making Kool Aid requires the above steps? *

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

A55-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that the speed of the trainer decreases at a constant rate. knowing that the plane has a speed of 550 km/h at point a, and the pilot experiences weightlessness at point c (i.e., the normal force from the seat bottom is zero), determine (a) the deceleration of the plane, (b) the force exerted on her by the seat of the trainer when the trainer is at point b.