Awave travels at a constant speed. how does the wavelength change if the frequency is reduced by a factor of 3 ? a. the wavelength increases by a factor of 3. b. the wavelength decreases by a factor of 3. c. the wavelength increases by a factor of 9. d. the wavelength does not change.

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .