The drift velocity of free electrons in a copper wire is 6 mm/s. Find the electric field in the conductor. Copper’s resistivity is 1.69 × 10−8 Ω · m and the free electron density is 8.48 × 1028 /m3 . The fundamental charge is 1.602 × 10−19 C. Answer in units of N/C.

change tension

pretty sure it's false

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.