Which labels belong in the regions marked x, y, and z? x: smaller nuclei form y: thermal energy is produced z: a larger nucleus forms x: large amounts of energy are released y: one or more neutrons is released z: smaller nuclei form x: one or more neutrons is released y: a larger nucleus forms z: large amounts of energy are released x: a larger nucleus forms y: large amounts of energy are released z: smaller nuclei form

What do butterflies have on their feet which allows them to sense different strengths and types of nectar? a.mechanoreceptors b.acoustic receptors c.substratum receptors d.chemoreceptors

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?