Which aspect does a light-year measure?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

An object's buoyant force and weight mean the same thing.a. trueb. false

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0