19)Calculate the force between a negative charge of 0.0068 coulombs and a positive charge of 0.00023 coulombs that are separated by 1.94
meters. Is the force attractive or repulsive? *
7,300 N of attractive force
O 7,300 N of repulsive force
3,700 N of attractive force
O 3,700 N of repulsive force

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 right answer is 0.3 meters per second