The speed of light is about 3.00 × 105 km/s. it takes approximately 1.28 seconds for light reflected from the
moon to reach earth. what is the average distance from earth to the moon?

How would doubling the made of an object change the objects potential energy

What should the power status of a circuit be when measuring resistance with an ohmmeter?

(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.)