the maximum speed at which a car can safely negotiate a frictionless banked curve depends on which of the following options? (please select all the correct options).

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?