Choose all answers that apply. According to Coulomb's law, the electrical force between two charges is related to the charges and the distance between the charges. According to the equation the electrical force will increase if

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

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?