Light travels from the sun to the earth, a distance of 144,000,000,000 meters, in 480 seconds. calculate the approximate velocity of light in the direction it travels toward the earth.

144.000.000.000÷480

=300.000.000 m/s

=300.00 km/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.