Part a which of these is exhibiting kinetic energy?
a. a person sitting on a couch while watching tv
b. an archer with a flexed bow a space station orbiting earth
c. a rock on a mountain ledge
d. the high-energy phosphate bonds of a molecule of atp

a space station orbiting Earth

Explanation:

Kinetic energy in an object arises from the motion of the object.

is the kinetic energy of object.

(a) a person sitting on a couch while watching TV

The person is still and is not in motion and thus, do not exhibit any kinetic energy.

(b) an archer with a flexed bow

The archer hold the bow flexed. It may have a lot of potential energy but not kinetic energy as it is still.

a space station orbiting Earth

The space station is moving and is in motion and thus, exhibits kinetic energy.

(c) a rock on a mountain ledge

The rock is on a mountain ledge . It may have a lot of potential energy but not kinetic energy as it is still.

(d) the high-energy phosphate bonds of a molecule of ATP

The bonds are still and is not in motion and thus, do not exhibit any kinetic energy.

see earlier