What is the magnitude of the net electric field at the center of the square due to the four charges in terms of q and a

Explain how plate tectonics have changed earth’s surface over time. include the role of plate tectonics in the creation of landforms.

Assume this car is driven off a cliff . how many arrows of force need to be drawn in the free body diagram? assume no air resistance -five -one -three -four

While you are driving in the lane next to the curb on a multi-lane road the car on your left suddenly moves toward you lane. they are about toy crash into your front fender. you