who gets to school first?

fact 1: mike travels the direct route to school at a constant speed of 3.1 m/s

fact 2: chief hopper travels 1000 m east and then 900 m north to reach the school starting from the rest and constantly accelerating at 0.028 m/s^2 until he reach the school

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

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?