Which of the following demonstrates energy being released as heat? a. a child shivering in the cold b. a surfer on a surfboard c. lions sleeping after a big meal d. a baby bird eating a worm

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here