Energy that is not utilized for work or heat transfer in the human body is converted to the chemical energy of body fat, which contains about 39 kJ/g. How many grams of fat will you gain if you eat 2450 kcal one day and do nothing but sit relaxed for 16 hours and sleep for the other 8 hours. (Assume sleeping burns 1.2 kcal/min, while sitting relaxed burns 1.7 kcal.min)

Q: A crate of fruit with a mass of 31.0 kg and a specific heat capacity of 3600j/(kgxk) slides 8.40m…

A:

Q: An aluminum cube has a 20 cm edge. Aluminum has a specific mass 2.7 times greater than that of water…

A:

Q: Carrie is trying to figure out the number of calories in a cube of cheese. To do this, she pours…

A:

Q: roller coaster FAHAD for a-c ignore friction a) at which point is the Potential energy the greatest…

A:

Q: A cylinder of helium gas (a monatomic molecule) has a volume of 15,000 cm3 and a pressure of 129…

A:

Q: Suppose we have a piece of a candy bar that has an initial mass of 28g. If we ignite the piece of…

A: The heat gained of loss by a material of mass m and specific heat s, when its temperature changes…

Q: A painter drops a 3.09 kg can from a height of 10.0 m. What is K (in Joules) at a height of 2.84 m?

A:

Q: A 46-kg woman cheats on her diet and eats a 685-Calorie (685 kcal) jelly doughnut for breakfast.…

A:

Q: 35 g of copper pellets are removed from a 300 degrees Celsius oven and immediately dropped into 100…

A:

Q: A popular web site state that a 200. pound person will burn 450. calories/hour bicycling (moderate…

A: Given: Rate of calories burn during bicycling =450 calories/hour=450 calories/hour1 hour60 min=7.5…

Q: Convert 6.83 ✕ 103 cal to the equivalent number of kilocalories (also known as Calories, used to…

A: Given data The energy in the unit of calorie is given as E = 6.83 x 103 cal.

Q: Suppose we have a piece of a candy bar that has an initial mass of 28g. If we ignite the piece of…

A:

Q: A coal- burning steam locomotive heats steam to 180°C and exhausts it at 100°C. During 1 s of its…

A: Refer Table “Heat engine efficiencies. Typical input and exhaust temperatures, ideal (best possible)…

Q: Question #: 23 If a person who normally requires an average of 12,000 kJ (~ 3000 Cal) of food energy…

A: If a person who normally requires an average of 12,000 kJ (3000 kcal) of food energy per day…

Q: You are put on a wool sweater of approximately 1.5 kg, because it is around 30 °F  outside. The wool…

A: Given, The mass of the wool sweater (m) =1.5 kg. The initial temperature of the wool sweater T1…

Q: A gasoline tank in a car has a capacity of 60 L at 20ºC. If the tank is fully filled without a…

A:

Q: The temperature of 500 g of water is to be raised from 10 °C to 40 °C.  The energy needed to do this…

A:

Q: A 45-kg person drinks 5.6 x 102 g of milk, which has a caloric value of approximately 3.0 kJ/g. If…

A: Here we will use dimple simple formula for work that is mgh

Q: We turn on a heater that delivers 150 watts (150 J/s) to  1.7 kg of water in a lab experiment.…

A:

Q: A soft drink manufacturer clains that a new diet drink is "low Joule." The label indicates the…

A:

Q: One ounce of a well-known breakfast cereal contains 99 Calories (1 food Calorie = 4186 J). If 2.4%…

A: In this case, 2.4 % of the potential energy converted. U=2.4%Q=0.024 Q   The expression for the…

Q: A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the…

A:

Q: A3.5 kg mass is sliding across a horizontal table at an initial speed of 6.8 m/s before friction…

A:

Q: A 0.5 m container of an ideal gas at atmospheric pressure is at a temperature of 20 °C and contains…

A:

Q: A large bedroom contains about 1 × 1027 molecules of air. If we model the air as an ideal gas, how…

A: The expression for the required energy is,

Q: An ideal gas at 20 degree Celsius consists of 2.2×1022 atoms. 7.5 J of thermal energy is removed…

A: The thermal energy of ideal gas E (in J) is given as…

Q: A 63-g ice cube at 0°C is heated until 56.9 g has become water at 100°C and 6.1 g has become steam…

A: M = 63 g =0.063 kg m = 6.1 g = 0.0061 kg Lice = 3.3 x 103 J/kg Lsteam = 2.26 x 106J/kg Cwater = 4186…

Q: A 69-g ice cube at 0°C is heated until 63.8 g has become water at 100°C and 5.2 g has become steam…

A:

Q: It takes  2.31J  of heat to raise the temperature of Object A by  1°C , and  3.50J  to raise the…

A:

Q: How many sprints from rest to a speed of 5.0 m/s would a 65-kg man have to complete to burn off 5.0…

A: Given The intial velocity of a man is u=0. The final velocity of a man is v=5 m/s. The mass of the…

Q: In an industrial chemical process, 600 J of heat is supplied to a system while 200 J of work is done…

A:

Q: A solid sphere has a temperature of 603 K. The sphere is melted down and recast into a cube that has…

A:

Q: The initial temperature of 13 moles of an ideal gas is 358 K. 18000 J of heat are added to the gas…

A: It is given that on adding heat energy, gas gets expanded. It means that volume of gas gets…

Q: The water passing over Victoria falls, located along the Zambezi River on the border of Zimbabwe and…

A:

Q: A 60 kg woman cheats on her diet and eats a 493 Calorie (493 kcal) jelly donut for breakfast. (a)…

A:

Q: (a) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the…

A: The weight of the woman is w=58 kg. The woman eats 555 kcal.

Q: I ride my bike down a hill that is a distance of 31 meters, the hill has an incline of 32°.  I…

A:

Q: In a thermodynamic process, a system absorbs 755 kJ of heat and does 117 kJ of work on its…

A:

Q: A 46-kg woman cheats on her diet and eats a 555-Calorie (555 kcal) jelly doughnut for breaktast. (a)…

A: In this question it is given that a woman with weight 46 kg  is on dieting she cheats her diet and…

Q: A spherical balloon contains a positively charged object at its centre. As the balloon is inflated…

A: Given : Balloon is inflated to greater volume.

Q: You hold a 65°C cup of cocoa. Your hand is 37°C and the outside air is 6°C. What is the flow of…

A: Flow of thermal energy (heat) is from higher temperature to lower temperature.

Q: How much work must be done by this heat pump to supply 2550 J of heat on a day when the outside…

A: Given data : Heat supply to heat pump is, Q=2550 J. Outside temperature is, To=253 K.

Q: A gas bottle contains 4.64x10 Hydrogen molecules at a temperature of 384.0 K. What is the thermal…

A:

Q: One liter of gasoline at pump costs $1.2. One US gallon of E85 (85% ethanol + 15% gasoline by…

A:

Q: A 220-lb athlete drinks a glass of soda (125 calories) and walks up to the top of a Library…

A: We will use first law of thermodynamics which states in terms of equation is that,…

Q: For most automobiles, the number of miles per gallon decreases as highway speed increases. Fuel…

A: Kinetic energy can be expressed as