Describe the relationship between amperage, voltage, and power.

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.

An object has a weight of 500 on earth what is the mass of this object

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx