Astudent stands on a scale, and the scale reads 85 n. what is being measured by the scale

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.

The receptor cells that convert light energy into neural signals are called

In eq. (10.1) in the lab manual, the constant is 41.1 gm-cmsec in air. a piece of paper has a mass per unit area of approximately . if the frequency is 4.8 khz, what does theory predict for the ratio of the transmitted amplitude to the incident amplitude of the sound wave? (a sound wave is a pressure wave.)