Which statement best describes the electric field around a positive charge?

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

What type of nuclear decay causes the atomic number of an element to increase by 1?

If a balloon is taken outside on a very cold day, what will occur?