1. The mechanical energy of the pendulum at the highest point equals a. kinetic energy only.
b. kinetic energy x potential energy.
c. potential energy only.
d. zero.

c. potential energy only

Explanation:

at highest point the body will having some height and gravitational force will work on it.

since the velocity at highest point will be zero therefore there will no kinetic energy

answer; (arch); good luck

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.