Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29 10-11 m, the expected position of the electron in the atom.

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

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

What is a possible result of higher air temperature caused by global warming