Which material would sound travel fastest through? A 25^ C pool of water A5^ C pool of water Speed of sound is not affected by temperature A 55°C pool of water

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.

the answer is 12 as i may remember

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false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.