A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions. a) What is the intensity of the light at a distance of 0.400 m from the bulb

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Write the correct abbreviation for each metric unit

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.