The waste products of combustion leave the eternal combustion engine through the?

a. crankshaft
b. exhaust valve
c. intake valve
d. cylinder

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

(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.)

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