What happens to the amplitude of the resultant wave when two sound waves with equal amplitude constructively interfere? A. It is half the amplitude of each wave. B. It is twice the amplitude of each wave. C. It is the mean of the amplitudes of the two waves. D. It is the square of the amplitude of each wave. E. It is zero.

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

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.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.