A rotating disk rotates with 6 m/s at a point 0.25 m from the center of that disk. The acceleration is m/s2 [A] A
a= v2r = 62×0.25 = 9

B
a= r2v = 0.252×6 = 0.375

C
a= v2÷r = 62÷0.25 = 144

D
a= r2÷v = 0.252÷6 = 0.01

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

Which of the following is not associated with mechanical energy? a. motion b. position c. density d. shape