e. A wind tunnel test on an 89 gg starling showed that the bird used 12 WW of metabolic power to fly at 11 m/sm/s. A migrating starling flies steadily at 11 m/sm/s for 1.
Q: The lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an…
A: U = mghwhere m = Mass of objectg = Acceleration due to gravityh = AltitudePotential energy at an…
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: I have 72 lightbulbs in my house. 53 of these lightbulbs are 65 watt and the other 19 lightbulbs are…
A: Determine the energy used in 1 year by 53 bulbs of 65 watts as follows.
Q: rmine the number of Calories required to power the heart for one day, given that 1 Calorie equals…
A: (a) Suppose under normal conditions the human heart converts about 13.5 J of chemical energy per…
Q: A roller coaster features a near vertical drop of 150 meters. If the initial velocity was zero, the…
A:
Q: The CANDU nuclear reactors in Pickering, Ontario have a power output rating of 3100 MW when all…
A:
Q: A student is riding a bicycle at a constant speed of 4.29 m/s on a level road. The mass of the…
A: Data provided: Constant Speed (v) = 4.29 m/s Frictional and drag force (Fr) = 31.6 N Asked: The…
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: Part A: A typical bolt of lightning carries billions of joules (1 GJ = 109 J) of energy, but…
A: Given that A typical bolt of lightning carries billions of Joules 1 GJ = 109 JEnergy, E = 8 GJ =…
Q: A bucket holding 17kg of sand is being lifted by a weightless rope. The bucket leaks 0.5kg of sand…
A:
Q: According to the World Energy Council, the average household in Mexico consumes about 1600 kWh of…
A: Dimension of solar panels=(1×1) So area of solar panel=1 m^2 Annual solar energy potential of panel…
Q: Assuming that the diet of an average Canadian consists of 2,000 food calories per day (1 food…
A: Given data :- diet of an average person Canadian = 2,000 food calories per day 1 food cal = 4200 J…
Q: Part A: How much work is done when you push a crate horizontally with 150 N across a 15-m factory…
A: A)The work done in pusing the crate is,
Q: give a specific example of a process that has the energy changes and transfers described. (For…
A: in given process , internal energy is constant or change in internal energy is zero, but work or…
Q: We heat about a cup (244 g) of milk (we’ll treat it like water, with a specific heat of 4186 J/kg…
A:
Q: For saving energy, bicycling and walking are far more efficient means of transportation than is…
A:
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: Samantha wishes to maintain her weight and goes to the gym to work off the calories she consumed at…
A:
Q: In terms of saving energy, bicycling and walking are far more efficient means of transportation than…
A:
Q: Flapping flight is very energy intensive. A wind tunnel test on an 89 g starling showed that the…
A:
Q: Your friend lifts a 45 kg barbell from the ground to a height of 2.4 m. Your friend claims doing…
A: Given data The mass of the barbell is given as m = 45 kg. The height up to which the barbell is…
Q: student is riding a bicycle at a constant speed of 4.19 m/s on a level road. The mass of the student…
A:
Q: A 5-kilogram object fell free from a height of 3 meters. What is the kinetic energy of the moment it…
A: According to the conservation of mechanical energy, the total change in mechanical energy of an…
Q: By eating a ripe banana, 110 calories of energy can be taken. Solve the minimum number of bananas to…
A:
Q: A 73-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops…
A:
Q: An energy storage system is being designed using a number of concrete blocks and electrically driven…
A:
Q: The Joule (J) and calorie (cal) are both units of energy. In the U.S., the energy provided by food…
A: From the question, it is given that- 1 Nutritional calories = 1 kcal 385 kJ of energy per 275.0 mL…
Q: A 71.4-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
A:
Q: Samantha wishes to maintain her weight and goes to the gym to work off the calories she consumed at…
A:
Q: If the energy conversion efficiencies in a 3 step process are 30% for the first step, 40% for the…
A:
Q: Ornithologists have determined that some species of birds tend to avoid flights over large bodies of…
A:
Q: Suppose that in one year a country produces 2.77 × 10" kilowatt-hours (kWh) of electrical energy…
A:
Q: student
A: Data provided: Constant Speed (v) = 4.36 m/s Frictional and drag force (Fr) = 40.6 N Asked: The…
Flapping flight is very energy intensive. A wind tunnel test on an 89 gg starling showed that the bird used 12 WW of
A migrating starling flies steadily at 11 m/sm/s for 1.0hh, using energy from its fat stores. How many grams of fat does it burn? Consider that metabolizing 1 gg of fat releases approximately 37 kJkJ of energy.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- A water fountain uses 125 Watts of power each hour. It is run 24 hours each day for 7 days. If electricity costs 10 cents per Kilowatt-hour, how much does it cost to keep the fountain working for those 7 days? Put your answer in $##.## form, but without the money symbol ($).In recent years, there has been a large push for an increase in the use of renewable resources to produce the energy we need to power our vehicles. One of the newer fuels that has become more widely available is E85, a mixture of 85% ethanol and 15% gasoline. Despite being more environmentally friendly, one of the potential drawbacks of E85 fuel is that it produces less energy than conventional gasoline. Assume a car gets 27.5 mi gal using gasoline at $3.50/gal and 21.5 mi gal using E85 at $2.85/gal. How much will it cost to drive 700. miles using conventional gasoline fuel? How much will it cost to drive 700. miles using E85 fuel?Betty, with a mass of 48.5 kilograms, sits on a playground swing that hangs 0.354 meters above the ground. Brian pulls the swing back and releases it when the seat is 1.20 meters above the ground. If 144 joules of energy is converted to thermal energy, how fast does Betty move through the lowest position?
- A coal power plant has a rated output of 150 MW and a first law efficiency of 41%. Coal has an energy density of 24 MJ/kg. How many metric tons of coal are wasted by the power plant per hour while running at full capacity (that is, how much of the coal that was burned did not actually contribute to generating electricity)? Express your answer in metric tons of coal.Similar to the previous problem, we heat about a cup (230 g) of milk (we'll treat it like water, with a specific heat of 4186 J/kg °C) from refrigerator temperature (5.2 °C) to a comfortable drinking temperature (52.5 °C) in order to make a cup of hot chocolate. First, find the energy required to heat this milk. Next, imagine giving a 1,600 kg truck this same amount of kinetic energy. What speed (in m/s) will the truck be travelling?Samantha wishes to maintain her weight and goes to the gym to work off the calories she consumed at breakfast that morning. She lifts a 28.0-kg barbell from shoulder level to above her head, through a vertical height of 0.550 m. How many times must she lift the barbell to make up for the 3.25 102 Calories of energy she consumed at breakfast? Note that Calories refers to food calories. (Include lowering the barbell as well.) The answer is NOT 9
- If the average household in a region consumes about 5,250 kWh of energy per year. In the region, the average annual solar energy potential is about 1,450 kWh/m² per year. If solar panels are available in sizes of 1 m x 1 m with an efficiency of 18 %, how many panels will be needed to power a house? (Since you can't have a fraction of panel, always round up you number to the next integer.) Your Answer: AnswerWhile running, a person dissipates about 0.600 J of chemical energy to mechanical energy per step per kilogram of body mass. If a 75.0 kg runner dissipates energy at a rate of 83.0 W during a race, how fast is the person running? Assume a running step is 1.50 m long.A kilowatt-hour (kWh) is a unit of measure equal to one thousand watts of electricity being used in one hour. Power companies use this measurement to determine your home energy bill. Consider using a bike for power: It takes 6 minutes pedalling at 24-26 volts consistently to produce just 1/10 (0.1) of a kWh. An average home uses about 25 kWh a day. How long would someone have to pedal at 24-26 Volts to power an average home?
- A book on a 3 meter high shelf has 17 joules of potential energy.what is the mass of the book 30kg .58kg 100kg 50kgIn an attempt to find the food calories provided by various fruits, you collect the following information, which is given in various units: pineapples have 125 Calories of energy, mangos have 271,960 joules of energy, and grapes have 87,000 calories of energy. Select the option that correctly ranks the fruits from greatest to least energy supplied.