How high is a 0.1 kilogram bird from the ground when its potential energy is 3 joules?

To calculate the height of the bird, we can use the formula for gravitational potential energy: PE = mgh, where m is the mass of the bird (0.1 kg), g is the acceleration due to gravity (9.8 m/s^2), h is the height from the ground, and PE is the potential energy (3 J). Rearranging the formula to solve for h gives h = PE / (mg). Plugging in the values, h = 3 J / (0.1 kg * 9.8 m/s^2) ≈ 3.06 meters.