A2in. piece of chocolate cake with frosting provides 1670 kj of energy. what is this in dietary calories(cal)

399.1 dietary calories

Explanation:

A 2in. piece of chocolate cake with frosting provides 1670 kJ (1670 × 10³ J) of energy. We can express this in calories, knowing that 1 cal = 4.184 J.

1670 × 10³ J × (1 cal/4.184 J) = 3.991 × 10⁵ cal

The dietary calorie is an energy unit commonly used to describe the energy content of foods and 1 dietary calorie = 1 kcal = 10³ cal. The energy in dietary calories corresponding to 3.991 × 10⁵ calories is:

3.991 × 10⁵ cal × (1 dietary calory/ 10³ cal) = 399.1 dietary calory

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..