Ben walks 500 meters from his house to the corner store. he then walks back toward his house but stops to talk to a neighbor when he is 200 meters from the corner store. if it takes ben 910 seconds from the time he leaves his house until he stops to talk to his neighbor, what is his average velocity? (round your answer to the nearest tenth of a meter per second.)

What is the role of lenses in microscopy?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic