Question

riding a bicycle at 8 - 9 miles per hour uses 436 calories in an hour. be sure each of your answer entries has the correct number of significant figures.
part 1 of 2
convert this value to kilocalories. report your answer in scientific notation. (1 cal = 1000 cal)

Explanation:

Step1: Identify the given value

The given value is 436 Calories (since riding a bicycle uses 436 Calories in an hour, and 1 Cal = 1000 cal, and we need to convert to kcal. Note that 1 kcal = 1 Cal, so the conversion factor is 1 kcal / 1 Cal.

Step2: Perform the conversion

We have 436 Cal. Since 1 Cal = 1 kcal, the value in kcal is also 436. Now, convert to scientific notation. 436 can be written as $4.36\times10^{2}$ (because 436 = 4.36 × 100 = 4.36 × $10^{2}$).

Answer:

$4.36\times10^{2}$ kcal