In which situations is gravitational potential energy present? check all that apply. a person walks up a flight of stairs. a person runs across a room. wind blows against a steel table anchored to the ground. wind lifts a balloon into the air. a weightlifter holds a barbell on the ground. a weightlifter holds a barbell straight overhead

A person walks up a flight of stairs.

Wind lifts a balloon into the air.

A weightlifter holds a barbell straight overhead

Explanation:

Gravitational potential energy is possessed by a body due to virtue of its position (height).

A body placed some height above the ground possesses gravitational potential energy which is equal to the work done to lift it.

Thus, a person who walks up a flight of stairs, a weightlifter holding barbell straight overhead and wind lifting balloon into the air have gravitational potential energy.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .