Choose the best definition of vectors from the following list.
a. quantities described by both speed and movement
b. quantities described by both velocity and acceleration
c. quantities described by both force and gravity
d. quantities described by both magnitude and direction

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

True or false: the revolution of the earth creates day and night as it rotates around the sun