Which of the following correctly represents two ions and the ionic compound that would form? A. Pb4 + , O2- , Pb2O4 B. Sc3+ , S2- , Sc2S3 C. Ba2 + , O2- , BaO2 D. Ca2- , F- , Ca2F

wavelength divides in half and speed stays the same.

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.