Apiece of string 2 meters and has a mass of 5g. on one end of the string hangs a 200 g mass. find the tension of the string and compute for the velocity of the speed of the wave generated. what is the mass constant in the string? ( t=1.96n; u = 2.5 x10 3kg/m; v = 28 m/s)

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

The necleus of an atom is made up of what subatomic particles?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices