Suppose that the average U.S. household uses 14600 kWh14600 kWh (kilowatt‑hours) of energy in a year. If the average rate of energy consumed by the house was instead diverted to lift a 1470 kg1470 kg car 11.3 m11.3 m into the air, how long would it take?     Using the same rate of energy consumption, how long would it take to lift a loaded Boeing 747 airplane, with a mass of 4.10×105 kg4.10×105 kg , to a cruising altitude of 8.92 km8.92 km ?

Q: I'm trying to solve this question, The record time for a Tour de France cyclist to ascend the…

A: The efficiency of the human body of work is 25%. Write the expression for the energy to ascend the…

Q: Suppose that in one year a country produces 2.87×10112.87×1011 kilowatt‑hours (kWh)(kWh) of…

A: Given that, the value of total produce energy and number of hydroelectric plants and efficiency of…

Q: 09: A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000…

A: Given : Lifting mass = 10 kg Height = 1m Number of times = 1000 Energy supplied by fat per kg…

Q: Under normal conditions the human heart converts about 12.4 J of chemical energy per second into…

A: (a) As 1 kilocalorie = 4186 J. Therefore, 1 cal = 4.186 J.  The energy in calorie used per second…

Q: How many kilometres per litter will a car obtain if its engine is 25 percent efficient and it…

A: The number of kilometers is,

Q: In 2017, solar panels on your author’s home generated 3849 kilowatt-hours (kWh) of electrical…

A: Energy generated by solar panels on author's home = 3849 kWh Energy consumed by the house at the…

Q: How much work is done to expand a 10-cm diameter cylindrical chamber at 1 atm from a length of 10 cm…

A: Hence, the work done is 79.58 J

Q: Determine the number of Calories required to power the heart for one day, given that 1 Calorie…

A:

Q: Under normal conditions the human heart converts about 12.5 J of chemical energy per second into…

A: Given:- The human heart converts about 12.5J  of chemical energy per second into 1.25 w of…

Q: In a sunny location, sunlight has a power density of about 1 kW/m2 . Photovoltaic solar cells can…

A: The input power given to a solar cell is given by the equation,…

Q: An (7.55x10^1)-kg man eats a banana of energy content 451 kJ (108 kcal). If all of the energy from…

A: Given data: Mass of man (M)=7.55×101Kg Energy of banana (E)=451 kJ=451×103 J All the energy from…

Q: What is the minimum energy needed to change the speed of a 1,084-kg sport utility vehicle from 12.5…

A: Given, Mass of sport utility vehicle (m) = 1084 kg  Initial speed(u)= 12.5m/s  Final speed (v)=…

Q: Under normal conditions the human heart converts about 12.7 J of chemical energy per second into…

A:

Q: e. A wind tunnel test on an 89 gg starling showed that the bird used 12 WW of metabolic power to fly…

A: Given: The bird flies for about 1 hour The metabolic power = 12 WW. A migrating starling flies…

Q: The metabolic power for walking is 316 W for Lili. For how long would Lili have to walk to use all…

A: Given Data, Metabolic Power required for walking (P)=316 W Energy Content in a can of soda (E)=628…

Q: Under normal conditions the human heart converts about 13.2 J of chemical energy per second into…

A:

Q: An 83kg man eats a banana of energy content 1.00x10^3 kcal. If all of the energy from the banana is…

A: Given data:  Mass (m) = 83 kg Energy (E) = 1.00 × 103 kcal Initial velocity (v0) = 0 m/s Required:…

Q: a) How many Joules of energy are needed to keep a 225 Watt ceiling fan (with lights) working for 1…

A: (a) Watt is defined as  1 watt = 1 joule per second and Energy = power x time.  (b) & (c) Unit…

Q: A student evaluates a weight loss program by calculating the number of times he would need to dlimb…

A: Given: Total height , h=16.0 m Weight fat lose , m=0.45 kg 1 kg of fat can produce chemical 3.77×107…

Q: Your brain consumes about 22 W of power, and avocados have been shown to promote brain health. If…

A: We are aware that the brain uses 22 W in total.One avocado has 310 C of energy.

Q: A 900-kg compact car moving at 60 mi/hr has approximately 320 000 Joules of kinetic energy. Estimate…

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Q: Judy has started fast walking for half an hour each day in an effort to lose weight. Judy currently…

A:

Q: Suppose that in one year a country produces 2.77 × 10" kilowatt-hours (kWh) of electrical energy…

A:

Q: How many grams of fat will you gain if you eat 10,000 kJ (about 2390 kcal) one day and do nothing…

A: Energy intake= 10000 KJ Energy consumption rate while sitting relaxed = 120 W = 120 J/s Total energy…

Q: Under normal conditions the human heart converts about 12.7 J of chemical energy per second into…

A:

Q: How many times could a 70kg person jump rope with the energy contained in one serving of gummy…

A:

Q: The food calorie, equal to 4186 J, is a measure of how much energy is released when food is…

A: (a) The change in gravitational potential energy of the person is obtained as; ΔU=mgΔym is the mass…

Q: started fast walking for half an hour each day in an effort to lose weight. Judy curren

A:

Q: If you expended 1500 watts for 3 hours, how many kilowatt-hours (kWh) would that be? Enter answer as…

A: Given Information:- Expended power is P=1500 W Time t=3 h Required:- We have to calculate the amount…

Q: The total consumption of electrical energy in the United States is about 1.0 1019 joules per year.…

A: The average rate of energy consumption is known as the power. The formula to calculate the power is…

Q: The food calorie, equal to 4186 J, is a measure of how much energy is released when the body…

A: Given: The food calorie is given as 4186 J. The fruit and cereal bar contains 140 calories. The mass…

Q: The summit of Mount Everest is 8850 m above sea level. (a) How much energy would a 90 kg climber…

A:

Q: The summit of a mountain is 5540 m above sea level. (a) How much energy would a 87 kg climber expend…

A:

Q: Energy comes from food and is usually measured in kilocalories [1 kcal = 4.186 kJ].  How many…

A: Metabolic rate  = 75 W =75 J/s  total energy required per day = 75*24*60*60 = 6480000=6480 kJ we…