A magnetic field with the same orientation as the Earth's field is said to
have:

A. reverse polarity
B. combined polarity
C. normal polarity
D. isochronal polarity

Normal polarity

Explanation:

Magnetic field in line with the earth field is said to have polarity.

If the magnetic field is in opposite direction with the earth's field, then, the polarity is said to be a reversed polarity.

But since the magnetic field is with the same orientation as the Earth's field, it is said to have normal polarity.

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.

high-sugar diet and high cholesterol