A 148 kg student eats a 200 Calorie doughnut. To “burn it off”, he decides to...
A 148 kg student eats a 200 Calorie doughnut. To “burn it off”, he decides to climb the steps of a tall building. (1 food Calorie = 103 Calories.) How high would he have to climb to expend an equivalent amount of work? The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m.
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A 148 kg student eats a 200 Calorie doughnut. To “burn it off”,
he decides to...
A 52-kg woman eats a 640 Calorie (640 kcal) jelly doughnut for breakfast. (a) How many...
A 52-kg woman eats a 640 Calorie (640 kcal) jelly doughnut for breakfast. (a) How many joules of energy are the equivalent of one jelly doughnut? _________ J (b) How many steps must the woman climb on a very tall stairway to change the gravitational potential energy of the woman-Earth system by a value equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm. _________ stairs (c) If the human body...
A student eats a dinner rated at 1533 (food) Calories. He wishes to do an equivalent...
A student eats a dinner rated at 1533 (food) Calories. He wishes to do an equivalent amount of work in the gymnasium by lifting a 33 kg mass. How many times must he raise the mass to expend this amount of energy? Assume that he raises it a distance of 2 m each time and that he regains no energy when it is dropped to the floor. The acceleration of gravity is 9.8 m/s2 . Answer in units of times.
A 55-kg woman cheats on her diet and eats a 540-Calorie (540 kcal) jelly doughnut for...
A 55-kg woman cheats on her diet and eats a 540-Calorie (540 kcal) jelly doughnut for breakfast: (A) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm. (C) If the human body is only 25% efficient in converting chemical energy to mechanical energy,...
A 63-kg woman cheats on her diet and eats a 440-Calorie (440 kcal) jelly doughnut for...
A 63-kg woman cheats on her diet and eats a 440-Calorie (440 kcal) jelly doughnut for breakfast. (a) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm stairs (c) If the human body is only 28% efficient in converting chemical energy to mechanical...
a 54kg woman cheats on her diet and eats a 615 calorie(615 kcal) jelly doughnut for...
a 54kg woman cheats on her diet and eats a 615 calorie(615 kcal) jelly doughnut for breakfast. a) how many joules of energy are the equivalent of one jelly doughnut? b) how many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? assume the height of a single stair is 15cm. c) if the human body is only 20% efficient in converting chemical energy to mechanical energy, how...
A man with a mass of 110 kg decides to lose weight by climbing the stairs...
A man with a mass of 110 kg decides to lose weight by climbing the stairs in his office building several times a day. With his current daily activities and food intake, his weight is stable, but he would like to lose 0.5 kg per week without reducing food intake. Data shows that a person must burn 8000 Cal to lose 1 kg of mass (1 Cal = 4.19 x 103 J). If each story of the office building has...
Part A A student with mass 59 kg jumps off a high diving board. Using 6.0x1024...
Part A A student with mass 59 kg jumps off a high diving board. Using 6.0x1024 kg for the mass of the earth, what is the acceleration of the earth toward her as she accelerates toward the earth with an acceleration of 9.8 m/s2 ? Assume that the net force on the earth is the force of gravity she exerts on it. Express your answer using two significant figures. al - m/s2 Submit Request Answer
Study Guide 321 Student Name Date Course Section Chapter TERMINOLOGY A. An eating disorder characterized by...
Study Guide 321 Student Name Date Course Section Chapter TERMINOLOGY A. An eating disorder characterized by the refusal to maintain a minimally normal body weight Hunger B. An internal signal that stimulates a person to acquire and Anthropometrics consume food C. A term used to define overfatness with potential adverse health effects and a BMI of over 30 Anorexia Nervosa. D. The type of activity which strengthens muscles and improves flexibility, bone density, and muscle endurance Satiety E. A method...
A 55-kg woman cheats on her diet and eats a 540-Calorie (540 kcal) jelly doughnut for breakfast: (A) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm. (C) If the human body is only 25% efficient in converting chemical energy to mechanical energy,...
A 63-kg woman cheats on her diet and eats a 440-Calorie (440 kcal) jelly doughnut for breakfast. (a) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm stairs (c) If the human body is only 28% efficient in converting chemical energy to mechanical...
Part A A student with mass 59 kg jumps off a high diving board. Using 6.0x1024 kg for the mass of the earth, what is the acceleration of the earth toward her as she accelerates toward the earth with an acceleration of 9.8 m/s2 ? Assume that the net force on the earth is the force of gravity she exerts on it. Express your answer using two significant figures. al - m/s2 Submit Request Answer
Study Guide 321 Student Name Date Course Section Chapter TERMINOLOGY A. An eating disorder characterized by the refusal to maintain a minimally normal body weight Hunger B. An internal signal that stimulates a person to acquire and Anthropometrics consume food C. A term used to define overfatness with potential adverse health effects and a BMI of over 30 Anorexia Nervosa. D. The type of activity which strengthens muscles and improves flexibility, bone density, and muscle endurance Satiety E. A method...
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