Calculate the electric potential 3mm from a point charge of 16Nc​

volts

Explanation:

The electric potential due to a point charge is given by

where Q = charge = C

r = distance from a point = m

= permitivity of free space

= 8.85×10^-12 C^2/N-m^2

Plugging in the numbers,

volts

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.