An industrial physicist wishes to specify the properties of a concave makeup mirror, which is supposed to provide an upright and enlarged image of the user's face. the physicist wants a magnification factor of two, and he assumes that the user's face will be 28 cm in front of the mirror. what radius of curvature should be specified (in cm) for the fabrication of these mirrors?

Ways that industry and agriculture use physical properties to separate substances

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?

An atom that has gained or lost electrons is called an _