Water has a high specific capacity; this means that it takes a lot of energy to change the temperature of water. Explain why this is important to life?
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Water has a high specific capacity; this means that it takes a lot of energy to change the temperature of water. Explain why this is important to life?
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- Small birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1 Cal = 4184 J. Figure 1 of 1 Part A Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W (this rate represents the power consumption of the bird). Assume that the bird consumes 4.00 g of fat to fly over a distance do without stopping for…Small birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1 Cal 4184 J. Figure 1 of 1 ▸ View Available Hint(s) db = 455 km Submit Previous Answers ▾ Part B ▶ How many grams of carbohydrate mcarbwould the bird have to consume to travel the same distance db? Express your answer in grams View Available Hint(s) Correct mcarb 8.95 g Submit Part C Previous Answers Correct This is more…Small birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1 Cal = 4184 J. Figure 1 of 1 > Review | Constants Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W (this rate represents the power consumption of the bird). Assume that the bird consumes 4.00 g of fat to fly over a distance do without…
- Small birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1Cal=4184J. Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W (this rate represents the power consumption of the bird). Assume that the bird consumes 4.00g of fat to fly over a distance db without stopping for feeding. How far will the…QUESTIONS 1. a) The earth's inner core is just a few hundreds of degrees less than the temperature of the Sun: about 5200 degrees Celsius versus about 6000 Degrees Celsius. With that much heat in the centre of the earth, why is it still possible for life to exist on the surface of the earth? b) How is the heat in the earth's centre able to melt the outer core but not the inner core? 2). a). Describe the Goldsmith Classification of element. b). Describe how Goldsmith rules are used to classify Elements. c). Describe how the bonding types and magma differentiation aids in the distribution of trace elements in the EarthWe need around 4000 calories daily to have a healthy body. How many Joules does that amount of energy represent?. Compare it with the amount of energy, in joules, that you need in order to lift a 1kg box 1 meter
- A yeast culture weighing 2 grams is removed from a refrigerator unit and is expected to grow at the rate of W' (t) = 0.2e0.4t grams per hour at a higher controlled temperature. How much will the weight of the culture increase during the first 7 hours of growth? How much will the weight of the culture increase from the end of the 7th hour to the end of the 14th hour of growth? grams. The weight increase during the first 7 hours is approximately (Type an integer or decimal rounded to three decimal places as needed.) The weight increase from the 7th to the 14th hour is approximately grams. (Type an integer or decimal rounded to three decimal places as needed.) CHWhen a person diets, is his/her goal is to lose mass or to lose weight? ExplainObjects deep beneath the surface of the ocean are subjected to extremely high pressures. Some bacteria in these environments have adapted to pressures as much as a thousand times atmospheric pressure. How might such bacteria be affected if they were rapidly moved to the surface of the ocean?
- You discovered a group of people living in a primitive village that is far from civilization. There are about 40 people living in 12 huts. Their primary source of food is from hunting beasts in the forest, fishing in the river, and farming different crops. During summer, they wear thin clothes to minimize the heat in their bodies. They do not have air conditioning systems or fans that could cool them on such hot days but they usually stay under the trees or near the river where there is plenty of fresh air. At night, they light a campfire to provide heat and to give a little brightness during the dark. Supposing you have with you motors, generators, and transformers (the types are up to you), how would you use them to improve the quality of life of the people in the village?A typical timber wolf has a mass of 40 kg, a typical jackrabbit a mass of 2.5 kg. Given the scaling law presented in the passage, we’d expect the specific metabolic rate of the jackrabbit to be higher by a factor ofA. 2 B. 4 C. 8 D. 16When we use petrol we are ultimately using stored energy from the sun. Plants capture the energy when growing, and then through a long process of decay and compression this plant matter is converted into a fossil fuel. An interesting question is how much sunlight is needed to produce a quantity of petrol. To estimate this, let's assume the petrol has come from wood, and let's assume we have a fast-growing wood source such as Pinus radiata. Assume also: a mature tree contains around 3 m3 of timber; a tree is harvested when 35 years old; the density of wood is around 500 kg/m3; 2 kg of wood makes 1L of petrol; a tree receives on average 8 hours of sunlight per day. How many "hours of sunlight" are stored in 1L of petrol? i.e. how many hours of sunlight does a tree need to be exposed to, to produce the amount of wood needed to make 1 L of petrol? Give your answer to two significant figures.