A Spherical Shell of Radius 9

question 61

Multiple Choice

A spherical shell of radius 9.0 cm carries a uniform surface charge density σ= 9.0 nC/m². The electric field at r = 8.9 cm is approximately

• A) 1.0 kN/C.
• B) 0.13 kN/C.
• C) 0.32 kN/C.
• D) zero.
• E) 0.65 kN/C.

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Definitions:

Muscular Activity

Muscular activity refers to the movement or action generated by the contraction of muscles, which can range from voluntary movements to involuntary processes.

Animal's Ability

Refers to the innate or learned capacities of animals to perform actions or solve problems relevant to their survival and reproduction.

Hydra

A genus of small, fresh-water organisms from the phylum Cnidaria, known for their regenerative ability.

Nerve Net

The network of neurons found in cnidarians and ctenophores.