If her body retains 10 J of thermal energy for each joule of work done while lifting, how many times must she lift the barbell to warm her body 0.50∘C?

Q: A 20,000 kgkg subway train initially traveling at 18.5 m/sm/s slows to a stop in a station and then…

A: In this question we have to find the rise in temperature. Please give positive feedback if the…

Q: Steam at 100°C is used to warm 350 g of water contained in a 300 g aluminum container.  The initial…

A: Temperature of steam: Mass of water in Aluminium container: Mass of Aluminium container: Initial…

Q: Two pieces of metal (A and B) are in contact with each other and initially at different…

A: Given, Temperature, mass of two metal A & B mA=7.5 g, mB=12.25g TA=23°C, TB=53°C Specific heat…

Q: A 6.22-kg piece of copper that is heated absorbs 728 kJ of energy. If the copper starts at 20.5° C,…

A: Solution:-Given thatmass of copper (m)=6.22 kgHeat absorbed (Q)=728 kJInitial temperature…

Q: A thirsty nurse cools a 2.40 LL bottle of a soft drink (mostly water) by pouring it into a large…

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Q: The “steam” above a freshly made cup of instant coffee is really water vapor droplets condensing…

A: The heat will be, Q=McΔT Also, Q=mLv Thus we have, ΔT=mLvMc

Q: Water with a mass of mW = 0.400 kg and temperature of TW = 19.5°C is poured into an insulated bucket…

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Q: A thirsty nurse cools a 2.30 LL bottle of a soft drink (mostly water) by pouring it into a large…

A:

Q: sume a dieter drinks 2.3 kg (i.e., 2.3 L) of ice water every day. The specific heat of water is…

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Q: punch bowl holds 3.80 kg of lemonade (which is essentially water) at 23.0 ∘C∘C. A 5.70×10−2-kg ice…

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Q: ou want to cool a .25 kg glass of water from 20C to 0C by adding ice initially at -20C.  What mass…

A: Assuming that the system remains isolated, i.e. does not exchange exchange heat with environment,…

Q: According to the USDA, an average, \moderately active" college student needs to eat 2500 calories…

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Q: An insulated Thermos contains 190 cm³ of hot coffee at 85.0°C. You put in a 16.0 g ice cube at its…

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Q: law firm they make their morning coffee in an aluminum cup. The cup has a mass of 0.13 kg and is…

A:

Q: An insulated beaker with negligible mass contains liquid water with a mass of 0.335 kgkg and a…

A: Write the mass of water in beaker. mw=0.335 kg   Write the initial temperature of the water in…

Q: A 5.00 kg piece of solid metal at an initial temperature T is placed with 1.00 kg of steam that is…

A: Given: Mass of water,mw=0.10kgTemperature,T=1200CSpecific heat of metal,cmetal=900J/kg·KSpecific…

Q: Initially you have mwater=4.2kg of water at Twater=66 degrees celcius in a insulated container. You…

A: Recall Q=mc∆T Also, principle of calorimetry. Heat lost by hotter body=heat gained by colder body

Q: During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled…

A: Heat transfer is given by,  Q=mS∆T Here,  m is mass and S is specific heat of blood and ∆T is change…

Q: To help keep his barn warm on cold days, a farmer stores 860 kg of solar-heated water (Lf = 3.35E+5…

A: Given Mass of the water m =860 kg  so the energy released by the water from cooling this to 11.8oC…

Q: 200 kg of water at 0o C is in an insulated container. A .500 kg sample of iron (448 J/kg-C) at 100oC…

A: It is given that,

Q: A 70.0-kg block of ice at 0.00°C breaks off from a glacier, slides along the frictionless ice to the…

A: The objective of the question is to find out how much of the mass of the ice is melted by the…

Q: An insulated beaker with negligible mass contains liquid water with a mass of 0.350 kg and a…

A: mw= 0.350 kgcw=4190 J/kg⋅Kci=2100  J/kg⋅KLf=3.34×105 J/kg The heat lost by water will be gained by…

Q: While jogging, a 70.0-kgkg student generates thermal energy at a rate of 1200 WW. To maintain a…

A: While jogging, a 70.0-kgkg student generates thermal energy at a rate of 1200 WW. To maintain a…

Q: Radioactive decay of granite and other rocks in Earth's interior provides sufficient energy to keep…

A: Given,

Q: A 6.22-kg piece of copper that is heated absorbs 728 kJ of energy. If the copper starts at 20.5° C,…

A: Given that,Mass : m = 6.22 (kg) = 6.22×103Specific Heat : C = 0.385 (J/g°C)Initial Temperature : Ti…

Q: A 5.157 kg loose bag of soil falls from unknown height at a construction site. What is height in m…

A:

Q: A 50 g ice cube at 00C is heated until 45 g has become water at 1000C and 5 g has become steam at…

A: Given data : latent heat of fusion, Lf =333000J/kglatent heat of vaporization,…

Q: How much heat transfer is required to raise the temperature of a 800 g aluminum pot containing 2000…

A: Given data: Mass of aluminum (mAl) = 800 g Mass of water (mw) = 2000 g Initial temperature of the…

Q: The human body, while at rest, produces heat energy at a rate of about 116 W. How much sweat (in g)…

A: Given data The heat energy is given as Q˙=116 W. The latent heat of vaporisation is given as Lv =…

Q: Suppose that in our lab on calorimetry, 80 g of aluminum at -20° Celcius was added to 120 g of water…

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Q: If the specific heat of pure liquid substance A is 9.167 J/kg.oC, find the amount of heat a 5 kg of…

A: Given: Mass of substance, m = 5 kg Specific heat of substance, S = 9.167 J/kg- °C change in…

Q: At a chemical plant where you are an engineer, a tank contains an unknown liquid. You must determine…

A:

Q: How much energy must be removed from a 100 gg block of ice to cool it from 0∘C∘C to -30 ∘C∘C? The…

A: The expression for the energy is,

Q: It is necessary to determine the specific heat of an unknown object. The mass of the object is 177…

A: Given data:  Mass (m) = 177 g Heat Energy (Q) = 17 J Raise in the temperature (ΔT) = 10.0°C…

Q: Ice at 00C  is placed in a Styrofoam cup containing 0.32 kg of lemonade at 270C . The specific heat…

A: Ice at 00C  is placed in a Styrofoam cup containing 0.32 kg of lemonade at 270C . The specific heat…

Q: A block of 10.0 kg of solid gold at its melting point of 1,063.00°C changes phase to liquid gold at…

A: SOlution: Given that m = 10 kg L =  6.44×104 J/kg

Q: The specific heats of aluminum and iron are 0.214 and 0.107 calories per gram degrees Celsius​…

A: Given data, Specific heat of the iron Ciron=0.107 cal/g°C Specific heat of the aluminum CAl=0.214…

Q: The human body, while at rest, produces heat energy at a rate of about 100 W. How much sweat (in g)…

A:

Q: A 25,000 kg subway train initially traveling at 15.5 m/s slows to a stop in a station and the stays…

A: In this question we are given that a 25,000 kg subway train initially traveling at 15.5 m/s slows to…

Q: Suppose 8.50 x 10 ) of energy are transferred to 1.79 kg of ice at 0°C. The latent heat of fusion…

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Q: How long does it take to raise the temperature of a 0.750-kg aluminum pot containing 2.50 kg of…

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Q: A 100-gram apple is dropped off a 200 m high cliff. As it falls its temperature drops by 2.5 °C due…

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Q: Water with a mass of mW = 0.400 kg and temperature of TW = 18.5°C is poured into an insulated bucket…

A:

Q: How much energy must be removed from a 500g block of ice to cool it from 0C to -40C? The specific…

A: Given:Mass of the block, m = 500 gSpecific heat, c = 2090 J.kg.KChange in temperature, ∆t  = -40 –…

Q: Find the work done by a force F = 2i (magnitude 2 N) in moving an object along the line from the…

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Q: An aluminum rod is heated to 245 ºC and placed in a coffee cup calorimeter containing 250.0 g of…

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Q: A 283 g silver figure of a polar bear is dropped into the 249 g aluminum cup of a well-insulated…

A:

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.