You connect three resistors with resistances R, 2R, and 3R in parallel. The equivalent resistance of the three resistors will have a value that is: a. less than R.
b. between R and 2R.
c. greater than 3R.
d. between 2R and 3R.

Less than R, less than 2R, less than 3R, and less than any other possible hookup of any one,  any two, or all three of these resistors.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;