The velocity of desmond’s car changes from 20 meters/second to 10 meters/second. the change happens in 5 seconds. what’s the acceleration of the car? use .

(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.)

The ability to make things happen is also called a. heat b. force c. matter d. energy

What is the relationship between globular clusters and the milky way?