Arock band playing an outdoor concert produces sound at 120 db 5.0 m away from their single working loudspeaker. ignore sound reflected from walls and other objects and consider sound originating directly from the speakers.

a. what is the sound intensity level 35 m from the speaker?
b. how far away from the speaker should you stand to ensure the intensity does not exceed 80 db?

What happens to light waves from a star as the star moves away from earth?

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?