Using Cathode Ray tubes and magnets , the mass of electrons was determined to be smaller than the smallest known atom. What charge was the electron determined to have ? • Positive
• Negative
• Neutral

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic