How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill?
options:
a) it is lost.
b) it increases.
c) it remains the same.
d) it is stored in the bicycle rider.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.