Consider the following three vectors:
A ( 2,-1,1)
B (3,0,5)
C(1,4,-2)
Calculate the following combinations. Express your answers as ordered triplets [e. g.(9,4,2), ].

a. A+B
b. B+C
c. A+B+C
d, 3A+2C
e. 2A+ 3B+C

*2A+3(B+C)

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.