A car is moving 28.5 m/s when it sees a policeman. It slows to 15.0 m/s in 2.37 s, then drives at a constant speed for 8.25 s. How far does the car travel in the problem? (Unit = m)

Atomic nuclei of almost all elements consist of

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.

Frequency of electromagnetic waves that a radio station is assigned is called