a hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. the sphere carries a net excess charge of -500 nc. a point charge of +300 nc is present at the center. find the radial component of the electric field at a point that is 0.60 m from the center.

If i got an 1040 on my psat, what are the chances of being able to get a 1400 on the sat. and are there any recommended ways to study.

Which will you likely have to provide on a college applications. a.) personal information, b.) parents level of education, c.) career plans, d.) employment history

Spider crabs live in the shallow regions of the ocean floor. algae tend to grow on the surface of spider crabs. the algae provide the crabs protection from predators by camouflaging them. the spider crabs give the algae shelter. what does this description suggest? 1. the algae are parasites of the spider crabs. 2. the algae and the spider crabs have a mutualistic relationship. 3. the spider crabs are commensals, and the algae are parasites. 4. the spider crabs benefit from the algae living on them. 5. the spider crabs are parasites of the algae.