An energy efficient refrigerator uses 780 kWh of electrical energy per year. How many kilocalories of electricity does it use in three years?

The relationship between the nutritional unit for energy and the metric unit is 1 calorie = 1 kcal.a. One donut contains 350 Calories. Convert this to calories and joules.

When a 0.66-g sample of olive oil is burned in a calorimeter, the heat released increases the temperature of 370 g of water from 22.7 °C to 38.8 °C. What is the energy value for the olive oil in kcal/g? (3.5, 3.6)

When 1.0 g of gasoline burns, it releases 11 kcal. The density of gasoline is 0.74 g/mL. (3.4, 3.6)b. If a television requires 150 kJ/h to run, how many hours can the television run on the energy provided by 1.0 gal of gasoline?

A patient is receiving 3000 mL/day of a solution that contains 5 g of dextrose (glucose) per 100 mL of solution. If glucose provides 4 kcal/g of energy, how many kilocalories per day is the patient receiving from the glucose?

Discuss the changes in the potential and kinetic energy of a roller-coaster ride as the roller-coaster car climbs to the top and goes down the other side.

Indicate whether each of the following statements describes potential or kinetic energy:c. the energy in a lump of coal

Indicate whether each of the following statements describes potential or kinetic energy:b. kicking a ball

Using the energy values for foods (see TABLE3.7), determine each of the following (round off the answer for each food type to the tens place):d. the grams of fat in one avocado that has 405 kcal, 13 g of carbohydrate, and 5 g of protein