The force required to maintain an object at a constant speed in free space is equal to

What are chlorofluorocarbons and what impact do they have on the atmosphere?

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