What the answer is and an explanation

Option c.

Explanation:

Force is a vector quantity. Vector quantity have both direction and magnitude.

Lets suppose right side as positive direction. Then, the force T which is acting on right will become +250 N.

Also, the force S which is acting on left side will become -250 N( due to it acting on opposite direction of force T. ).

For these two forces to be balanced, sum of these two forces must equal to zero.

Now, add these two forces.

250 + ( -250 ) = 0. So, these two forces are balanced. So, option c is correct one.

(75°f − 32) × 5/9 = 23.889°c

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.