What must the initial speed of a lead bullet be at 25.0°C sothat the heat developed when it is brought to rest will be just sufficientto melt it? Assume that all the initial mechanical energy of the bullet isconverted to heat and that no heat flows from the bullet to its surroundings.

Q: In exercising, a weight lifter loses 0.156 kg of water through evaporation, the heat required to…

A: The weight lifter loses water of mass .The work done in lifting weights is .The latent heat of…

Q: Consider a classroom for 63 students and one instructor, each generating heat at a rate of 100 W.…

A: To determine the rate of internal heat generation in the classroom when it is fully occupied, we…

Q: If 5.90 moles of a monoatomic ideal gas at a temperature of 280 K are expanded isothermally from a…

A: Given value--- No. of mole = 5.90 . temperature = 280 K . process = isothermal . volume V1 = 1.17…

Q: (a) How much heat transfer (in kJ) is necessary to raise the temperature of a 0.150 kg piece of ice…

A: Given: mass m=0.150kg initial temperature =-16 oC final temperature =134 oC

Q: Power is supplied at the rate of 0.40 hp for 2 min in drilling a hole in a 1.0 lb brass block. (a)…

A: Given, P= 0.40 hp = 0.40 x 746 = 298.4 J Time t = 2 min = 2 x 60 = 120 s Mass m = 1 lb = 0454 Kg

Q: A metal calorimeter has mass m, = 0.25 kg and contains m, = 5 kg of watcr, and the whole system is…

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Q: A 200.0 g metal container, insulated on the outside, holds 100.0 g of water in thermal equilibrium…

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Q: (a) It is difficult to extinguish a fire on a crude oiltanker, because each liter of crude oil…

A: Given, Total heat, Qt=2.80×107 J.

Q: A 100 °C, 80 g of copper is immersed in a water of 100 g at 15 °C. The whole system is kept in an…

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Q: A 71.8 kg sprinter accelerates from rest to a speed of 18.7 m/s in 7.0  s. (e) If no heat is…

A: Given: m=71.8 kg vi=0 vf=18.7 m/s t=7 s

Q: A 15-g lead bullet is tested by firing it into a fixed block ofwood with a mass of 35 kg. The block…

A: Given data: Mass of lead bullet, m=15 g = 0.015 kg Mass of block, M=35 kg Temperature, T=0.020 oC…

Q: You want to cool a crate of beer for Saturday's barbecue. Assume the crate has a heat capacity C=10…

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Q: (a) 0.17 kg of ice cubes are dropped into 0.32 kg of lemonade (mostly water) in a container, and…

A: Q=mc∆TLatent heat=mLwhere c is specific heat capacityL is latent heat of fusion

Q: To what temperature would you have to heat a brass rod for it to be 1.9 % longer than it is at 23…

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Q: In exercising, a weight lifter loses 0.111 kg of water through evaporation, the heat required to…

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Q: The Andong Dam lake in South Korea holds 1.25 x 109 m³ of water. (a) How much energy (in J) is…

A: a) Calculate the mass of the water. m=ρVm=(1000 kg/m3)(1.25×109 m3)m=1.25×1012 kg

Q: A(n) 2.4-kg copper block is given an initial speed of 8.8 m/s on a rough horizontal surface. Because…

A: Given The mass of the copper block is m = 24 kg. The initial speed is v = 8.8 m/s.   The block…

Q: You fill an insulated mug with 360 g of coffee at 99 °C. How many grams of ice at -10 °C should you…

A: The mass of the water = 360 gramThe temperature of the coffee = 99 degree celciuscoffee's specific…

Q: In exercising, a weight lifter loses 0.217 kg of water through evaporation, the heat required to…

A: The weight lifter loses water of mass 0.217 kg. The work done in lifting weights is 1.40×105 J. The…

Q: How much energy is transferred thermally to change 0.2 L of ice at -20◦C into steam?   (density of…

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Q: An ideal gas iniatially at 320 K undergoes an isobaric expansion at 2.80 kPa. If the volume…

A: Given :      Initial temperature, T1 = 320 K      Pressure, P = 2.8 kPa = 2.8 x 103 Pa (Isobaric…

Q: A piece A volid temperature T and is placed with a block of ice with mass of 2-00 kg that is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: (a) Calculate the rate at which body heat is conducted through the clothing of a skier in a…

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Q: (a) How much heat transfer (in kJ) is necessary to raise the temperature of a 0.190 kg piece of ice…

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Q: A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C.…

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Q: A rod of length a is fully insulated along it sides. Assuming the initial temperature is defined by,…

A: Given: f(x)=x, 0<x<π2       =π-x,  π2<x<πat t=0 both ends are dipped into cold water at…

Q: a) Two materials, aluminum (intial length, 6 m) and ordinary glass (initial length, 5 m) are…

A: The coefficient of expansion of aluminum is αAl = 23*10-6 oC The coefficient of expansion of glass…

Q: A(n) 4.1-kg copper block is given an initial speed of 1.3 m/s on a rough horizontal surface. Because…

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Q: 24 Kg of Air at 100 kPa and 280 K is flowing through a compressor for 20 minutes and is compressed…

A: Given that Mass of Air = m = 24 kgInitial pressure = P = 100kPa = 100,000 PaInitial temp. = T = 280…

Q: A gas burner transfers 9.20 × 105 J into a block of ice with a mass of 2.29 kg and an initial…

A: Given data: The heat transfer to the block is E=9.20x105 J. The mass of ice block is m=2.29 kg. The…

Q: A furnace is shaped like a long equilateral-triangularduct where the width of each side is 2 m. Heat…

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Q: What mass of water at 30.0°C must be allowed to come to thermal equilibrium with a 1.80-kg cube of…

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Q: Atupe leaus irvi a nask III WIIICHI waiti is boiling under atmospheric pressure to a calorimeter.…

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Q: It is important for the body to be able to cool itself even during moderate exercise. Suppose a 70kg…

A: Given: Man's mass, m=70 kg Time, t=30 min=30×60=1800 sec Power, P=1000 W

Q: A 50-m-long section of a steam pipe whose outer diameteris 10 cm passes through an open space at…

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Q: In a cylinderical furnace of 1.5 m dia and 2 m length the curved surface is maintained at 1400 K,its…

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Q: A thermos keeps 500 g of black coffee at 85°C . After added 60g of milk at 25°C, the equilibrium…

A: mass of coffee= 0.5 Kg mass of milk= 0.06 Kg final temp. of equilibrium= 79oC

Q: How many grams of ice at -13°C must be added to 711 grams of water that is initially at a…

A: In the given question, We have to determine the required mass of the ice.