Which of these is an example of the conversion of kinetic energy into gravitational potential energy? Group of answer choices a bicyclist coasting down a long hill a car engine moving the car forward a roller coaster car moving toward the top of a rise in the tracks a thrown ball falling toward the ground after passing through the top part of its motion

i am going to guess that it is co2.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.