What is the magnitude of a point charge in coulombs whose electric field 58 cm away has the magnitude 2.8 N/C?

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s