During a solar eclipse our tiny moon totally blocks the sun because of

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

(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.)