Part B Plan a controlled experiment to investigate how much the temperatures of cold sand and cold water
change when hot water is added to them. Assume you have access to water, sand, containers, ice, a
heat source, a scale, and thermometers. Summarize your experiment in a few sentences.

(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.)

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

How do the forces acting on a boat compare to the force acting on a plane ?