Me with these 3
you : d

a coil of wire wrapped around an iron core will make the core what when current flows.

atoms which lose an electron become what charged.

static electricity can what when atoms of opposite charge come close to each other.

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

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?