One hour of bicycle racing can require 500-900 kcal of energy, depending on the speed of the race, the terrain, and the weight of the racer. Tour de France riders must consume abnormal amounts of food to supply this energy. Food in the form of protein or carbohydrates produces 17.0 kJ of energy per gram consumed. How many kilograms of protein or carbohydrate must be consumed to provide the energy for 155 minutes of racing that requires 650.0 kcal/hr. (Recall 1 kcal = 4.184 kJ)

The Nutrition Facts label for one slice of wheat bread gives Nutrition Facts the percent daily value of various nutrients based on a 2,000-kcal diet. Based on the percent daily values for the nutrients, calculate how many grams of each nutrient are Serving Size: 1 slice (25g) Amount Per Serving Calories 76 Calories from Fat 9 suggested daily for a 2,000-kcal diet. % Daily Value Total Fat 1.02 g 296 Saturated Fat 0.23 g 196 Trans Fat Cholesterol 0 mg Dietary fiber: Sodium 145.75 mg 696 Potassium 81.5 mg 296 Total Carbohydrate 12.79 g 496 Dietary Fiber 2.3 g g96 Sugars 1.44 g Total fat: Sugar Alcohols Protein 4.07 g Vitamin A 1 IU 0% Vitamin C 0 mg 0% Calcium 32.5 mg 3% Saturated fat: Iron 0.74 mg 4% Sodium: obout us careers privecy policy terma of uae contact us help Lr O 79°F

On a 14.6 oz bag of candy, the manufacturer states that a single 2.00 oz serving is equivalent to 200. kJ. How many Calories are in the bag of candy?

A 8.0-kg rock is dropped from a height of 3.0 m. At what height is the rock's kinetic energy twice its potential energy?

A bicyclist is stopped at the entrance to a valley, as sketched below: B D Where would the bicyclist have the highest potential energy? Where would the bicyclist have the lowest potential energy? Where would the bicyclist have the highest kinetic energy? Where would the bicyclist have the highest speed? Would the bicyclist's kinetic energy be higher at C or B? Would the bicyclist's potential energy be higher at C or B? Would the bicyclist's total energy be higher at C or B? Suppose the bicyclist lets off the brakes and coasts down into the valley without pedaling. Even if there is no friction or air resistance to slow her down, what is the farthest point the bicyclist could reach without pedaling? E (choose one) ✓ (choose one) (choose one) ✓ (choose one) ✓ (choose one) (choose one) (choose one) X (choose one) Ś ?

How much energy is required to raise the temperature of 11.0 grams of solid copper from 23.1 °C to 39.1 °C