When an ambulance is is moving toward an observer , what is happening to the velocity of the sound wave of the sirine while approaching the observer A. No change in velocity of sound

B. Velocity of sound increases

C. Velocity of sound decreases

D. Not enough information to determine

c

Explanation:

i don't know that i agree with that but what's the question ?

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.