What is the strength of an electric field that will balance the weight of a 1. 7 kg plastic sphere that has been charged to -7. 5 nc ?.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil