Marc attaches a falling 328-kg object with a rope through a pulley to a paddle wheel shaft. He places the system in a well-insulated tank holding 23.2 kg of water. When the object falls, it causes the paddle wheel to rotate and churn the water. If the object falls a vertical distance of 88.6 m at constant speed, what is the temperature change of the water? (1kcal = 4 186 J, the specific heat of water is 4 186 J/kg?°C, and g = 9.80 m/s2)

Q: At a local convenience store, you purchase a cup of coffee, but, at 98.4°C, it is too hot to drink.…

A: Given: Initial temperature of coffee T1 = 98.4°C Initial mass of coffee V = 248 mL Give that density…

Q: A student performs an experiment using an aluminum cup that contains 225 g of water and a 130 g…

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Q: A 9.70-kg steel ball at 18.9°C is dropped from a height of 16.2 m into an insulated container with…

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Q: A beaker of negligible heat capacity contains 456 g of ice at -25.0°C. A lab technician begins to…

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Q: 4. A woman finds the front windshield of her car covered with ice at -12°C. The ice has a thickness…

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Q: 9.3°C . At what rate in watts must the person transfer thermal energy to reduce the the body…

A: Given Mass of person m =60 kg Body initial temperature = 39.3 0 C FFinal temperature = 370 C TTime…

Q: A concrete slab is 10.0 cm thick and has an area of 4.50 m². Electric heating coils are installed…

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Q: You have a block of m = = 100 g of an unknown substance at room temperature (T; = 25°C), and you…

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Q: Consider a person standing in a room at 20°C with an exposed surface area of 1.7 m2. The deep body…

A: Solution:-         Room temperature T∞=20°C          Surface area As=1.7 m2…

Q: At 16°C, a rod is exactly 19.82 cm long on a steel ruler. Both the rod and the ruler are placed in…

A: Write a given values of this question. T1=16∘CT2=230∘CLs=20.06cmL=19.82cmα=11×10-6/C∘

Q: A 0.52 kg hammer strikes a 28 g copper nail into a wood board. The nail is horizontally aligned and…

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Q: A concrete road surface consists of 15-m long sections separated by gaps to allow for thermal…

A: Step 1 :We know that the coefficient of thermal expansion of concrete at room temperature, T = 20 oC…

Q: A physics instructor drops an ice cube into an insulated container full of water and waits for the…

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Q: common temperature with the pan.  What would be the final temperature, in degrees Celsius, of the…

A: According to Principle of calorimetry  Heat given by hot substance = heat taken by cold substance

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: Following vigorous exercise, the body temperature of a 75.0 kg person is 38.7°C. At what rate in…

A: Write the formula for the specific heat in terms of the energy transferred out. Write the formula…

Q: Your favorite car goes zero to 60 mph in 3.5 seconds. Assuming it accelerates uniformly, sketch a…

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Q: A 1.8-cm-thick wood floor covers a 4.0 m × 5.5 m room. The subfloor on which the flooring sits is at…

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Q: You drop an ice cube into an insulated container full of water and wait for the ice cube to…

A: Mass of ice =90g=0.09kg Mass of water =730g =0.73kg Intial  temperature of water=20°C Specific heat…

Q: A farrier makes horseshoes and is a specialist in equine hoof care. In making a horseshoe a farrier…

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Q: You drop an ice cube into an insulated flask full of water and wait for the ice cube to completely…

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Q: Roger heats a brass metal cube (specific heat = 375 J/kg·°C) to 70.0°C and places the cube into an…

A: Water is  initially at a temperature of 100CWater gains heat from the brass metal cube, which is at…

Q: A 7 kg of glass bowl (c = 840 J/kg·K) contains 16 kg of water (c =4186 J/kg·K) at 25°C. 2.5 kg of…

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Q: Electronic device generates 30 W of heat during normal operation. The heat is dissipated from the…

A: Rate of heat production,  Temperature of the ambient air,  Surface area,  Heat transfer coefficient,…

Q: A 2.00-kg metal block slides on a rough, horizontal surface inside an insulated pipe. After sliding…

A: Given data, Mass of the block m=2 kg Distance slide by the block d=500 m Increase in temperature…

Q: A 0.825 kg block of iron, with an average specific heat of 5.60 × 102 J/kg·K, is initially at a…

A: Given: The mass of the block of iron is 0.825 kg and its specific heat capacity is 5.60×102 J/kg.K.…

Q: The amount of heat per second conducted from the blood capillaries beneath the skin to the surface…

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Q: You drop an ice cube into an insulated container full of water and wait for the ice cube to…

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Q: A chunk of hot iron is pulled out of a fire and placed between aluminum vice grips. The mass of the…

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Q: I am very hungry, so I need to cook myself some ramen on the stove. I fill up a pot with 2 kg of…

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Q: Blood can carry excess energy from the interior to the surface of the body, where the energy is…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.