If a train conductor is describing the speed of the train as well as the direction the train is going, then the train conductor is said to be describing the train's

If forces acting on an object are unbalanced. true or false

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?