An observer sees a lightning flash from a distant thunderstorm and 12 seconds later hears the sound. If the ..? temperature of the air is 20°C how far from the storm is the observer? (Assume that light travels instantaneously.)

Urgent i will give brainliest farmer dantzler brings her prize pig, penny, to the annual country fair. if the mass of the pig is 140 kg, what is the weight? (what are you solving for? what is your formula? what unit do you use to represent weight? you can do it! ) your a.14 g b.140 n c. 1400 kg d. 1372 n show me how to work it too