An engine can exert a force of 1,000 N. At what rate can it accelerate a 2,000 kg car?
O 1 m/s/s
5 m/s
2000 m/s
O
5 m/s/s

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.

i thinking chemical change