Ablacksmith heats a 35 g lump of iron from room temperature until it glows (2425 degrees c) to work it. if the specific heat of iron is 0.450 j/g degrees c, how much thermal energy has it gained?

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.