Which is like passive mediated transport and which is like active transport: Rolling a ball down a ramp -
Rolling a ball up a ramp -
Explain your answers:

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.