An insulating sphere with radius r=0.1m that carries total charge q=1nc (uniformly distributed). the center of the sphere is located 0.2m above a large plastic sheet that has a uniform surface charge density =-8nc/m2 on one side. find the location of all points where the resultant electric field is zero, or show that there are no such points.

Hydrogen and helium are both members of?

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?