Final answer:
A noncontact force acts on an object without physical contact, such as air resistance on an airplane or the Sun holding the Earth close.
Step-by-step explanation:
A noncontact force is a force that acts on an object without physical contact. It can influence the motion or behavior of an object without actually touching it. Air resistance on an airplane is an example of a noncontact force, as it affects the plane's movement without any direct contact. Another example is the Sun holding the Earth close through gravitational force. These forces do not require direct contact between the objects involved.
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