A swallow weighing 200 g flies at a height of 20 m above the ground. what potential energy does it have?

Initial data: m (mass of a swallow) = 200 g (0.2 kg); h (height above the ground where the swallow flies) = 20 m.

Reference data: g (acceleration due to gravity) ≈ 10 m / s2.

The value of the potential energy possessed by the swallow is found by the formula: En = m * g * h.

Calculation: Ep = 0.2 * 10 * 20 = 40 J.

Answer: The swallow will have a potential energy of 40 J.