Asoft drink manufacturer claims that a new diet drink is "low joule." the label indicates the available energy per serving is 6300 j. what is the equivalent of this energy in calories (1 calorie = 1000 cal)?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.