What does a transformer do?
changes the voltage of electricity leaving a power plant
changes the temperature of steam in a power plant
cools the water in a nuclear reactor

(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.)

Aball horizontally thrown from a cliff at 8m/s

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?