An electric field does 2. 03 âś• 103 eV of work on a helium nucleus of charge 2 e. Find the change in electric potential through which the nucleus has moved and the change in the nucleus' electric potential energy in joules. (Note that the charge on the nucleus is exact in terms of multiples of e. ).

What happens to the light rays when they hit the specimen?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?