if two objects masses 8kg and 24 kg are dropped from top of a building. Which one reaches the ground first

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

(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.)

In science and physics what is the standard unit of measure for speed?