The starship enterprise speeds past an asteroid at 0.920c. if an observer on the asteroid sees 10.0 seconds pass on her watch, how long would that time interval be if measured by an observer on the enterprise?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

If element x has 99 protons how many electrons does it have

Ivana walks 2km north then turns around and walks 3km south